Custom Flange Parts Machining UI<\/title><style>html,body{margin:0;background:#fff}<\/style><\/head><body><style>\n.weldo-flange-page,\n.weldo-flange-page *{box-sizing:border-box}\n.weldo-flange-page{\n --wf-ink:#243b46;\n --wf-muted:#607985;\n --wf-blue:#34349d;\n --wf-blue-dark:#292b82;\n --wf-cyan:#4ab2d1;\n --wf-bg:#edf8fd;\n --wf-soft:#f7fbfe;\n --wf-line:#c4e3f2;\n --wf-white:#fff;\n width:100%;\n color:var(--wf-ink);\n font-family:Arial,Helvetica,sans-serif;\n font-size:15px;\n line-height:1.6;\n}\n.weldo-flange-page h1,\n.weldo-flange-page h2,\n.weldo-flange-page h3,\n.weldo-flange-page p,\n.weldo-flange-page figure,\n.weldo-flange-page ul,\n.weldo-flange-page dl{margin:0}\n.weldo-flange-page h1,\n.weldo-flange-page h2,\n.weldo-flange-page h3{line-height:1.2}\n.weldo-flange-page h1{font-size:clamp(30px,3.2vw,35px);letter-spacing:-.025em}\n.weldo-flange-page h2{font-size:clamp(27px,2.7vw,35px);letter-spacing:-.02em}\n.weldo-flange-page h3{font-size:18px}\n.weldo-flange-page p,\n.weldo-flange-page li,\n.weldo-flange-page td,\n.weldo-flange-page th,\n.weldo-flange-page button,\n.weldo-flange-page a{font-size:max(14px,1em)}\n.weldo-flange-page a{color:inherit}\n.weldo-flange-page img{max-width:100%}\n.weldo-flange-page .wf-section{width:100%;padding:68px 24px;background:#fff}\n.weldo-flange-page .wf-section:nth-child(even){background:var(--wf-bg)}\n.weldo-flange-page .wf-inner{width:100%;max-width:1440px;margin:0 auto}\n.weldo-flange-page .wf-kicker{display:flex;align-items:center;gap:12px;margin-bottom:12px;color:var(--wf-blue);font-size:14px;font-weight:800;letter-spacing:1.8px;text-transform:uppercase}\n.weldo-flange-page .wf-kicker:before{content:\"\";width:54px;height:6px;border-radius:999px;background:var(--wf-cyan)}\n.weldo-flange-page .wf-lead{max-width:900px;margin-top:14px;color:var(--wf-muted);font-size:16px;line-height:1.7}\n.weldo-flange-page .wf-btn{display:inline-flex;align-items:center;justify-content:center;min-height:48px;margin-top:24px;padding:0 24px;border:0;border-radius:10px;background:var(--wf-blue);color:#fff;text-decoration:none;font-size:15px;font-weight:800;transition:.2s ease}\n.weldo-flange-page .wf-btn:hover{background:var(--wf-blue-dark);transform:translateY(-1px)}\n.weldo-flange-page .wf-media{overflow:hidden;border:1px solid var(--wf-line);border-radius:18px;background:#eaf6fc}\n.weldo-flange-page .wf-media img{display:block;width:100%;height:100%;object-fit:contain;background:#eaf6fc}\n.weldo-flange-page .wf-card{overflow:hidden;border:1px solid var(--wf-line);border-radius:16px;background:#fff}\n.weldo-flange-page .wf-arrow{display:grid;place-items:center;flex:0 0 44px;width:44px;height:44px;border:1px solid var(--wf-line);border-radius:50%;background:#fff;color:var(--wf-blue);font-size:23px;line-height:1;cursor:pointer;transition:transform .2s ease,box-shadow .2s ease}\n.weldo-flange-page .wf-arrow:hover,\n.weldo-flange-page .wf-arrow:focus-visible{background:#fff;color:var(--wf-blue);transform:scale(1.1);box-shadow:0 8px 20px rgba(52,52,157,.13)}\n.weldo-flange-page .wf-arrow:active{background:#fff;color:var(--wf-blue);transform:scale(1.04)}\n\n\/* 01 Hero *\/\n.weldo-flange-page .wf-hero{background:linear-gradient(120deg,#eef9fe 0%,#fff 72%)}\n.weldo-flange-page .wf-hero-grid{display:grid;grid-template-columns:minmax(430px,1.05fr) minmax(0,.95fr);gap:50px;align-items:center}\n.weldo-flange-page .wf-hero-copy{max-width:680px;padding:10px 0}\n.weldo-flange-page .wf-hero-copy .wf-lead{max-width:680px}\n.weldo-flange-page .wf-hero-media{height:430px;padding:18px}\n.weldo-flange-page .wf-hero-media img{border-radius:12px}\n.weldo-flange-page .wf-hero-note{margin-top:20px;padding-left:14px;border-left:4px solid var(--wf-cyan);color:var(--wf-muted)}\n\n\/* 02 Types *\/\n.weldo-flange-page .wf-section-head{display:flex;justify-content:space-between;gap:24px;align-items:end;margin-bottom:30px}\n.weldo-flange-page .wf-controls{display:flex;gap:10px}\n.weldo-flange-page .wf-type-controls{display:none}\n.weldo-flange-page .wf-type-viewport{overflow:visible}\n.weldo-flange-page .wf-type-track{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px}\n.weldo-flange-page .wf-type-card{min-width:0;height:100%;padding:12px}\n.weldo-flange-page .wf-type-card .wf-media{height:210px;border:0;border-radius:11px}\n.weldo-flange-page .wf-type-card h3{margin-top:14px;color:var(--wf-blue)}\n.weldo-flange-page .wf-type-card p{margin-top:7px;color:var(--wf-muted);line-height:1.55}\n.weldo-flange-page .wf-design-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px;margin-top:20px}\n.weldo-flange-page .wf-design-item{padding:18px;border:1px solid var(--wf-line);border-radius:13px;background:#f7fbfe}\n.weldo-flange-page .wf-design-item strong{display:block;margin-bottom:4px;color:var(--wf-blue)}\n.weldo-flange-page .wf-design-item span{color:var(--wf-muted)}\n\n\/* 03 Materials *\/\n.weldo-flange-page .wf-material-switch{display:flex;gap:10px;margin:28px 0 14px}\n.weldo-flange-page .wf-material-switch button,\n.weldo-flange-page .wf-material-tab{width:auto;min-width:0;border:1px solid var(--wf-line)!important;border-radius:10px;background:#fff!important;color:#496673!important;font-weight:800;white-space:nowrap;cursor:pointer;outline:0!important;transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease,background-color .2s ease}\n.weldo-flange-page .wf-material-switch button{padding:12px 18px}\n.weldo-flange-page .wf-material-switch button[aria-selected=\"true\"],\n.weldo-flange-page .wf-material-tab[aria-selected=\"true\"]{border-color:var(--wf-cyan)!important;background:#e7f6fd!important;color:var(--wf-blue)!important;box-shadow:inset 0 -3px 0 var(--wf-cyan),0 7px 16px rgba(52,52,157,.1)!important;transform:scale(1.035)}\n.weldo-flange-page .wf-material-switch button:hover,\n.weldo-flange-page .wf-material-switch button:focus-visible,\n.weldo-flange-page .wf-material-tab:hover,\n.weldo-flange-page .wf-material-tab:focus-visible{border-color:var(--wf-cyan)!important;background:#f5fbfe!important;color:var(--wf-blue)!important;transform:scale(1.035)}\n.weldo-flange-page .wf-material-switch button:active,\n.weldo-flange-page .wf-material-tab:active{border-color:var(--wf-cyan)!important;background:#e7f6fd!important;color:var(--wf-blue)!important;transform:scale(1.02)}\n.weldo-flange-page .wf-material-tab[hidden]{display:none!important}\n.weldo-flange-page .wf-tab-row{display:grid;grid-template-columns:44px minmax(0,1fr) 44px;gap:10px;align-items:center}\n.weldo-flange-page .wf-tab-window{overflow:hidden}\n.weldo-flange-page .wf-tab-list{display:flex;gap:10px;overflow-x:auto;scroll-behavior:smooth;scrollbar-width:none}\n.weldo-flange-page .wf-tab-list::-webkit-scrollbar{display:none}\n.weldo-flange-page .wf-material-tab{flex:0 0 auto;padding:11px 17px}\n.weldo-flange-page .wf-material-panel{display:none;margin-top:18px}\n.weldo-flange-page .wf-material-panel.is-active{display:grid;grid-template-columns:minmax(280px,.72fr) minmax(0,1.28fr);gap:30px;align-items:center;padding:22px;border:1px solid var(--wf-line);border-radius:18px;background:#fff}\n.weldo-flange-page .wf-material-panel .wf-media{height:330px;padding:14px}\n.weldo-flange-page .wf-material-copy h3{color:var(--wf-blue);font-size:25px}\n.weldo-flange-page .wf-material-copy>p{margin-top:10px;color:var(--wf-muted)}\n.weldo-flange-page .wf-facts{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;margin-top:18px}\n.weldo-flange-page .wf-fact{padding:15px;border:1px solid var(--wf-line);border-radius:12px;background:var(--wf-bg)}\n.weldo-flange-page .wf-fact dt{color:var(--wf-blue);font-weight:800}\n.weldo-flange-page .wf-fact dd{margin:4px 0 0;color:var(--wf-muted)}\n.weldo-flange-page .wf-faces{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}\n.weldo-flange-page .wf-face{padding:8px 12px;border-radius:999px;background:#e6f5fc;color:#315363;font-weight:800}\n\n\/* 04 Specs *\/\n.weldo-flange-page .wf-table-wrap{overflow-x:auto;margin-top:28px;border:1px solid var(--wf-line);border-radius:16px;background:#fff}\n.weldo-flange-page .wf-table{width:100%;min-width:720px;border-collapse:collapse}\n.weldo-flange-page .wf-table th,\n.weldo-flange-page .wf-table td{padding:15px 18px;border-bottom:1px solid var(--wf-line);text-align:left}\n.weldo-flange-page .wf-table th{background:#e8f5fb;color:var(--wf-blue);font-weight:800}\n.weldo-flange-page .wf-table tr:last-child td{border-bottom:0}\n.weldo-flange-page .wf-spec-notes{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px;margin-top:18px}\n.weldo-flange-page .wf-spec-note{padding:17px;border:1px solid var(--wf-line);border-radius:13px;background:#fff}\n.weldo-flange-page .wf-spec-note strong{display:block;margin-bottom:5px;color:var(--wf-blue)}\n.weldo-flange-page .wf-spec-note span{color:var(--wf-muted)}\n.weldo-flange-page .wf-disclaimer{margin-top:12px;color:#78909b;font-size:14px}\n\n\/* 05 Production *\/\n.weldo-flange-page .wf-production-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px;margin-top:28px}\n.weldo-flange-page .wf-stage .wf-media{height:230px;border:0;border-radius:0}\n.weldo-flange-page .wf-stage-body{padding:16px}\n.weldo-flange-page .wf-stage-body strong{display:block;color:var(--wf-blue)}\n.weldo-flange-page .wf-stage-body p{margin-top:5px;color:var(--wf-muted)}\n\n\/* 06 Projects *\/\n.weldo-flange-page .wf-project-viewport{overflow:hidden}\n.weldo-flange-page .wf-project-track{display:flex;gap:14px;transition:transform .38s ease}\n.weldo-flange-page .wf-project-card{flex:0 0 calc((100% - 56px)\/5);height:220px;padding:10px}\n.weldo-flange-page .wf-project-card img{display:block;width:100%;height:100%;object-fit:contain;border-radius:10px;background:#eaf6fc;cursor:zoom-in}\n.weldo-flange-page .wf-lightbox{position:fixed;z-index:99999;inset:0;display:none;place-items:center;padding:24px;background:rgba(18,35,44,.88)}\n.weldo-flange-page .wf-lightbox.is-open{display:grid}\n.weldo-flange-page .wf-lightbox img{max-width:min(1100px,92vw);max-height:88vh;object-fit:contain;border-radius:14px;background:#fff}\n.weldo-flange-page .wf-lightbox-close{position:absolute;top:20px;right:22px;width:48px;height:48px;border:0;border-radius:50%;background:#fff;color:var(--wf-blue);font-size:27px;cursor:pointer}\n\n\/* 07 Applications *\/\n.weldo-flange-page .wf-application-grid{display:grid;grid-template-columns:minmax(380px,.82fr) minmax(0,1.18fr);gap:34px;align-items:center}\n.weldo-flange-page .wf-application-media{height:410px;padding:16px}\n.weldo-flange-page .wf-industry-list{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:9px;margin-top:20px}\n.weldo-flange-page .wf-industry{padding:11px 12px;border:1px solid var(--wf-line);border-radius:10px;background:#fff;color:var(--wf-blue);font-weight:800;text-align:center}\n.weldo-flange-page .wf-quote-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;margin-top:20px;padding:0;list-style:none}\n.weldo-flange-page .wf-quote-list li{position:relative;padding:11px 12px 11px 38px;border:1px solid var(--wf-line);border-radius:10px;background:#fff;color:var(--wf-muted)}\n.weldo-flange-page .wf-quote-list li:before{content:\"\u2713\";position:absolute;left:13px;color:var(--wf-blue);font-weight:900}\n\n\/* 08 FAQ + CTA *\/\n.weldo-flange-page .wf-final-grid{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(360px,.85fr);gap:28px;align-items:stretch}\n.weldo-flange-page .wf-faq-panel,\n.weldo-flange-page .wf-cta-panel{height:100%;min-height:590px;border:1px solid var(--wf-line);border-radius:20px;background:#fff}\n.weldo-flange-page .wf-faq-panel{padding:30px}\n.weldo-flange-page .wf-faq-list{margin-top:24px}\n.weldo-flange-page details{margin-bottom:10px;border:1px solid var(--wf-line);border-radius:12px;background:var(--wf-soft);overflow:hidden}\n.weldo-flange-page summary{position:relative;padding:18px 50px 18px 18px;color:var(--wf-ink);font-weight:800;cursor:pointer;list-style:none}\n.weldo-flange-page summary::-webkit-details-marker{display:none}\n.weldo-flange-page summary:after{content:\"+\";position:absolute;right:18px;top:50%;transform:translateY(-50%);color:var(--wf-blue);font-size:23px}\n.weldo-flange-page details[open] summary:after{content:\"\u2212\"}\n.weldo-flange-page .wf-answer{padding:0 18px 18px;color:var(--wf-muted)}\n.weldo-flange-page .wf-cta-panel{display:flex;flex-direction:column;justify-content:center;padding:42px;background:linear-gradient(145deg,#e9f7fd 0%,#f8fcff 62%,#e7f1ff 100%)}\n.weldo-flange-page .wf-cta-badge{align-self:flex-start;padding:7px 12px;border:1px solid var(--wf-line);border-radius:999px;background:#fff;color:var(--wf-blue);font-weight:800}\n.weldo-flange-page .wf-cta-panel h2{margin-top:20px}\n.weldo-flange-page .wf-cta-panel p{margin-top:15px;color:var(--wf-muted)}\n.weldo-flange-page .wf-confidential{margin-top:18px;color:#78909b;font-size:14px}\n\n@media(max-width:1100px){\n .weldo-flange-page .wf-hero-grid,\n .weldo-flange-page .wf-application-grid,\n .weldo-flange-page .wf-final-grid{grid-template-columns:1fr}\n .weldo-flange-page .wf-hero-media{height:400px}\n .weldo-flange-page .wf-design-grid,\n .weldo-flange-page .wf-production-grid,\n .weldo-flange-page .wf-spec-notes{grid-template-columns:repeat(2,minmax(0,1fr))}\n .weldo-flange-page .wf-project-card{flex-basis:calc((100% - 28px)\/3)}\n .weldo-flange-page .wf-type-track{grid-template-columns:repeat(2,minmax(0,1fr))}\n .weldo-flange-page .wf-faq-panel,\n .weldo-flange-page .wf-cta-panel{min-height:0}\n}\n@media(max-width:760px){\n .weldo-flange-page .wf-section{padding:50px 16px}\n .weldo-flange-page .wf-section-head{align-items:flex-start}\n .weldo-flange-page .wf-hero-media{height:320px}\n .weldo-flange-page .wf-material-panel.is-active{grid-template-columns:1fr;padding:15px}\n .weldo-flange-page .wf-material-panel .wf-media{height:280px}\n .weldo-flange-page .wf-facts{grid-template-columns:1fr}\n .weldo-flange-page .wf-production-grid,\n .weldo-flange-page .wf-spec-notes{grid-template-columns:1fr}\n .weldo-flange-page .wf-stage .wf-media{height:260px}\n .weldo-flange-page .wf-project-card{flex-basis:100%;height:300px}\n .weldo-flange-page .wf-industry-list,\n .weldo-flange-page .wf-quote-list{grid-template-columns:1fr}\n .weldo-flange-page .wf-application-media{height:320px}\n .weldo-flange-page .wf-faq-panel,\n .weldo-flange-page .wf-cta-panel{padding:24px}\n .weldo-flange-page #flange-projects .wf-section-head{\n display:flex;\n flex-direction:column;\n align-items:stretch;\n gap:12px;\n margin-bottom:12px;\n }\n .weldo-flange-page #flange-projects .wf-controls{\n align-self:flex-end;\n margin:0;\n }\n .weldo-flange-page .wf-type-card .wf-media{height:230px}\n .weldo-flange-page .wf-type-controls{display:none}\n .weldo-flange-page .wf-type-viewport{\n overflow:visible;\n padding-bottom:0;\n }\n .weldo-flange-page .wf-type-track{\n display:grid;\n grid-template-columns:1fr;\n width:100%;\n gap:14px;\n }\n .weldo-flange-page .wf-type-card{\n width:100%;\n }\n}\n@media(max-width:520px){\n .weldo-flange-page .wf-kicker:before{width:36px}\n .weldo-flange-page .wf-design-grid{grid-template-columns:1fr}\n .weldo-flange-page .wf-material-switch{overflow-x:auto}\n .weldo-flange-page .wf-project-card{height:260px}\n}\n<\/style><main class=\"weldo-flange-page\">\n<section class=\"wf-section wf-hero\" id=\"flange-hero\">\n <div class=\"wf-inner wf-hero-grid\">\n\n \n <figure class=\"wf-media wf-hero-media\" data-image-role=\"hero\">\n <img decoding=\"async\"\n src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/08\/custom-flange-part.webp\"\n alt=\"Custom CNC machined flange part\"\n fetchpriority=\"high\"\n >\n <\/figure>\n\n <div class=\"wf-hero-copy\">\n <p class=\"wf-kicker\">Custom Flange Component<\/p>\n <h1>Custom Flange Part Machining<\/h1>\n <p class=\"wf-lead\">\n Drawing-based CNC flange machining for piping, valves, pumps and equipment\n interfaces. Send the flange geometry, material, sealing face and inspection\n requirements for an engineering review and transparent quote.\n <\/p>\n <p class=\"wf-hero-note\">\n Prototype, low-volume and repeat-production flange parts are planned from\n the approved drawing.\n <\/p>\n <a class=\"wf-btn\" href=\"https:\/\/weldomachining.com\/contact-us\/\">\n Upload Your Flange Drawing \u2192\n <\/a>\n <\/div>\n\n <\/div>\n<\/section>\n<section class=\"wf-section\" id=\"flange-types\"><div class=\"wf-inner\"><div class=\"wf-section-head\"><div><p class=\"wf-kicker\">Flange Structures<\/p><h2>Flange Types and Design Options<\/h2><p class=\"wf-lead\">Choose the connection structure first, then confirm the standard, pressure class, sealing face and service conditions.<\/p><\/div><div class=\"wf-controls wf-type-controls\"><button class=\"wf-arrow\" type=\"button\" data-type-prev aria-label=\"Previous flange types\">\u2190<\/button><button class=\"wf-arrow\" type=\"button\" data-type-next aria-label=\"Next flange types\">\u2192<\/button><\/div><\/div><div class=\"wf-type-viewport\"><div class=\"wf-type-track\"><article class=\"wf-card wf-type-card\"><figure class=\"wf-media\"><img decoding=\"async\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/08\/Weld-Neck-Flange.webp\" alt=\"Weld Neck flange\" loading=\"lazy\"><\/figure><h3>Weld Neck<\/h3><p>Tapered neck for high-pressure, high-temperature or cyclic service.<\/p><\/article><article class=\"wf-card wf-type-card\"><figure class=\"wf-media\"><img decoding=\"async\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/08\/Slip-On-Flange.webp\" alt=\"Slip-On flange\" loading=\"lazy\"><\/figure><h3>Slip-On<\/h3><p>Practical welded connection for general piping systems.<\/p><\/article><article class=\"wf-card wf-type-card\"><figure class=\"wf-media\"><img decoding=\"async\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/08\/blind-flange.webp\" alt=\"Blind flange\" loading=\"lazy\"><\/figure><h3>Blind<\/h3><p>Solid closure for isolation, testing or future expansion.<\/p><\/article><article class=\"wf-card wf-type-card\"><figure class=\"wf-media\"><img decoding=\"async\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/08\/Socket-Weld-Flange.webp\" alt=\"Socket Weld flange\" loading=\"lazy\"><\/figure><h3>Socket Weld<\/h3><p>Compact rigid connection for selected small-bore piping.<\/p><\/article><article class=\"wf-card wf-type-card\"><figure class=\"wf-media\"><img decoding=\"async\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/08\/Lap-Joint-Flange.webp\" alt=\"Lap Joint flange\" loading=\"lazy\"><\/figure><h3>Lap Joint<\/h3><p>Loose flange arrangement for alignment and repeated disassembly.<\/p><\/article><article class=\"wf-card wf-type-card\"><figure class=\"wf-media\"><img decoding=\"async\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/08\/Threaded-Flange.webp\" alt=\"Threaded flange\" loading=\"lazy\"><\/figure><h3>Threaded<\/h3><p>Non-welded connection where the design and service permit threads.<\/p><\/article><article class=\"wf-card wf-type-card\"><figure class=\"wf-media\"><img decoding=\"async\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/08\/Orifice-flange.webp\" alt=\"Orifice flange\" loading=\"lazy\"><\/figure><h3>Orifice<\/h3><p>Machined pressure taps and plate location for flow measurement.<\/p><\/article><article class=\"wf-card wf-type-card\"><figure class=\"wf-media\"><img decoding=\"async\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/08\/Integral-Flange.webp\" alt=\"Integral flange\" loading=\"lazy\"><\/figure><h3>Integral<\/h3><p>Rigid flange formed with the pipe or equipment body.<\/p><\/article><\/div><\/div><div class=\"wf-design-grid\"><div class=\"wf-design-item\"><strong>Connection Fit<\/strong><span>OD, bore, thickness and mating interfaces.<\/span><\/div><div class=\"wf-design-item\"><strong>Bolt Pattern<\/strong><span>Bolt circle, hole count, diameter and orientation.<\/span><\/div><div class=\"wf-design-item\"><strong>Sealing Features<\/strong><span>FF, RF, RTJ and drawing-specific grooves.<\/span><\/div><div class=\"wf-design-item\"><strong>Machined Details<\/strong><span>Threads, counterbores, steps, chamfers and ports.<\/span><\/div><\/div><\/div><\/section>\n<section class=\"wf-section\" id=\"flange-materials\"><div class=\"wf-inner\"><p class=\"wf-kicker\">Material and Sealing Selection<\/p><h2>Flange Materials and Sealing Faces<\/h2><p class=\"wf-lead\">Compare metals and engineering plastics by grade, load, temperature, corrosion exposure, sealing face and service environment.<\/p><div class=\"wf-material-switch\" role=\"tablist\"><button type=\"button\" aria-selected=\"true\" data-material-group=\"metal\">Metal Materials<\/button><button type=\"button\" aria-selected=\"false\" data-material-group=\"plastic\">Engineering Plastics<\/button><\/div><div class=\"wf-tab-row\"><button class=\"wf-arrow\" type=\"button\" data-material-prev aria-label=\"Previous material\">\u2190<\/button><div class=\"wf-tab-window\"><div class=\"wf-tab-list\" role=\"tablist\"><button class=\"wf-material-tab\" type=\"button\" role=\"tab\" aria-selected=\"true\" data-group=\"metal\" data-material=\"m0\">Aluminum<\/button><button class=\"wf-material-tab\" type=\"button\" role=\"tab\" aria-selected=\"false\" data-group=\"metal\" data-material=\"m1\">Stainless Steel<\/button><button class=\"wf-material-tab\" type=\"button\" role=\"tab\" aria-selected=\"false\" data-group=\"metal\" data-material=\"m2\">Copper<\/button><button class=\"wf-material-tab\" type=\"button\" role=\"tab\" aria-selected=\"false\" data-group=\"metal\" data-material=\"m3\">Brass<\/button><button class=\"wf-material-tab\" type=\"button\" role=\"tab\" aria-selected=\"false\" data-group=\"metal\" data-material=\"m4\">Bronze<\/button><button class=\"wf-material-tab\" type=\"button\" role=\"tab\" aria-selected=\"false\" data-group=\"metal\" data-material=\"m5\">Carbon Steel<\/button><button class=\"wf-material-tab\" type=\"button\" role=\"tab\" aria-selected=\"false\" data-group=\"metal\" data-material=\"m6\">Titanium<\/button><button class=\"wf-material-tab\" type=\"button\" role=\"tab\" aria-selected=\"false\" data-group=\"plastic\" data-material=\"m7\">ABS<\/button><button class=\"wf-material-tab\" type=\"button\" role=\"tab\" aria-selected=\"false\" data-group=\"plastic\" data-material=\"m8\">PVC<\/button><button class=\"wf-material-tab\" type=\"button\" role=\"tab\" aria-selected=\"false\" data-group=\"plastic\" data-material=\"m9\">POM \/ Delrin<\/button><button class=\"wf-material-tab\" type=\"button\" role=\"tab\" aria-selected=\"false\" data-group=\"plastic\" data-material=\"m10\">PTFE<\/button><button class=\"wf-material-tab\" type=\"button\" role=\"tab\" aria-selected=\"false\" data-group=\"plastic\" data-material=\"m11\">HDPE<\/button><button class=\"wf-material-tab\" type=\"button\" role=\"tab\" aria-selected=\"false\" data-group=\"plastic\" data-material=\"m12\">PP<\/button><button class=\"wf-material-tab\" type=\"button\" role=\"tab\" aria-selected=\"false\" data-group=\"plastic\" data-material=\"m13\">PEEK<\/button><button class=\"wf-material-tab\" type=\"button\" role=\"tab\" aria-selected=\"false\" data-group=\"plastic\" data-material=\"m14\">Nylon \/ PA<\/button><button class=\"wf-material-tab\" type=\"button\" role=\"tab\" aria-selected=\"false\" data-group=\"plastic\" data-material=\"m15\">Polycarbonate \/ PC<\/button><button class=\"wf-material-tab\" type=\"button\" role=\"tab\" aria-selected=\"false\" data-group=\"plastic\" data-material=\"m16\">PMMA \/ Acrylic<\/button><\/div><\/div><button class=\"wf-arrow\" type=\"button\" data-material-next aria-label=\"Next material\">\u2192<\/button><\/div><div class=\"wf-material-panels\"><article class=\"wf-material-panel is-active\" id=\"m0\" data-group=\"metal\"><figure class=\"wf-media\"><img decoding=\"async\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/08\/aluminum-material-flange.webp\" alt=\"Aluminum flange material\" loading=\"lazy\"><\/figure><div class=\"wf-material-copy\"><h3>Aluminum<\/h3><p>Lightweight, easy to machine and resistant to atmospheric corrosion.<\/p><dl class=\"wf-facts\"><div class=\"wf-fact\"><dt>Common Grades<\/dt><dd>6061-T6, 6082-T6, 7075-T6<\/dd><\/div><div class=\"wf-fact\"><dt>Pressure & Temperature<\/dt><dd>Low to medium pressure; typically ambient to moderate temperature.<\/dd><\/div><div class=\"wf-fact\"><dt>Sealing Faces<\/dt><dd>FF and RF; use compatible soft or coated gaskets to protect the face.<\/dd><\/div><div class=\"wf-fact\"><dt>Typical Environment<\/dt><dd>Lightweight equipment, ventilation and general industrial piping.<\/dd><\/div><\/dl><\/div><\/article><article class=\"wf-material-panel\" id=\"m1\" data-group=\"metal\"><figure class=\"wf-media\"><img decoding=\"async\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/08\/stainless-steel-material-flange.webp\" alt=\"Stainless Steel flange material\" loading=\"lazy\"><\/figure><div class=\"wf-material-copy\"><h3>Stainless Steel<\/h3><p>High strength, cleanability and broad corrosion resistance.<\/p><dl class=\"wf-facts\"><div class=\"wf-fact\"><dt>Common Grades<\/dt><dd>304, 304L, 316, 316L, 321<\/dd><\/div><div class=\"wf-fact\"><dt>Pressure & Temperature<\/dt><dd>Medium to high pressure; ambient to elevated temperature according to grade.<\/dd><\/div><div class=\"wf-fact\"><dt>Sealing Faces<\/dt><dd>FF, RF and RTJ; face finish must match the gasket and service standard.<\/dd><\/div><div class=\"wf-fact\"><dt>Typical Environment<\/dt><dd>Chemical, medical, food, pharmaceutical and wet-service systems.<\/dd><\/div><\/dl><\/div><\/article><article class=\"wf-material-panel\" id=\"m2\" data-group=\"metal\"><figure class=\"wf-media\"><img decoding=\"async\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/08\/copper-material-flange.webp\" alt=\"Copper flange material\" loading=\"lazy\"><\/figure><div class=\"wf-material-copy\"><h3>Copper<\/h3><p>Excellent thermal and electrical conductivity with good machinability.<\/p><dl class=\"wf-facts\"><div class=\"wf-fact\"><dt>Common Grades<\/dt><dd>C101, C110, C122<\/dd><\/div><div class=\"wf-fact\"><dt>Pressure & Temperature<\/dt><dd>Low to medium pressure; low to moderate temperature.<\/dd><\/div><div class=\"wf-fact\"><dt>Sealing Faces<\/dt><dd>FF and RF with a gasket compatible with copper and the process fluid.<\/dd><\/div><div class=\"wf-fact\"><dt>Typical Environment<\/dt><dd>Cooling loops, heat exchangers, electrical and temperature-control systems.<\/dd><\/div><\/dl><\/div><\/article><article class=\"wf-material-panel\" id=\"m3\" data-group=\"metal\"><figure class=\"wf-media\"><img decoding=\"async\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/08\/brass-material-flange.webp\" alt=\"Brass flange material\" loading=\"lazy\"><\/figure><div class=\"wf-material-copy\"><h3>Brass<\/h3><p>Free-cutting, wear-resistant and dimensionally stable.<\/p><dl class=\"wf-facts\"><div class=\"wf-fact\"><dt>Common Grades<\/dt><dd>C360, C464, C693<\/dd><\/div><div class=\"wf-fact\"><dt>Pressure & Temperature<\/dt><dd>Low to medium pressure; ambient to moderate temperature.<\/dd><\/div><div class=\"wf-fact\"><dt>Sealing Faces<\/dt><dd>FF and RF; confirm gasket and galvanic compatibility.<\/dd><\/div><div class=\"wf-fact\"><dt>Typical Environment<\/dt><dd>Water systems, instruments, valves and non-aggressive fluids.<\/dd><\/div><\/dl><\/div><\/article><article class=\"wf-material-panel\" id=\"m4\" data-group=\"metal\"><figure class=\"wf-media\"><img decoding=\"async\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/08\/bronze-material-flange.webp\" alt=\"Bronze flange material\" loading=\"lazy\"><\/figure><div class=\"wf-material-copy\"><h3>Bronze<\/h3><p>Wear resistance, dependable sliding behavior and strong seawater performance.<\/p><dl class=\"wf-facts\"><div class=\"wf-fact\"><dt>Common Grades<\/dt><dd>C932, C954, C958<\/dd><\/div><div class=\"wf-fact\"><dt>Pressure & Temperature<\/dt><dd>Low to medium pressure; ambient to moderate temperature.<\/dd><\/div><div class=\"wf-fact\"><dt>Sealing Faces<\/dt><dd>FF, RF and RTJ when the alloy, gasket and service specification are compatible.<\/dd><\/div><div class=\"wf-fact\"><dt>Typical Environment<\/dt><dd>Marine equipment, pumps, valves and water-bearing systems.<\/dd><\/div><\/dl><\/div><\/article><article class=\"wf-material-panel\" id=\"m5\" data-group=\"metal\"><figure class=\"wf-media\"><img decoding=\"async\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/08\/carbon-steel-material-flange.webp\" alt=\"Carbon Steel flange material\" loading=\"lazy\"><\/figure><div class=\"wf-material-copy\"><h3>Carbon Steel<\/h3><p>High load capacity, broad availability and cost efficiency.<\/p><dl class=\"wf-facts\"><div class=\"wf-fact\"><dt>Common Grades<\/dt><dd>A105, A350 LF2, C20, Q235<\/dd><\/div><div class=\"wf-fact\"><dt>Pressure & Temperature<\/dt><dd>Low to high pressure depending on grade, dimensions and governing standard.<\/dd><\/div><div class=\"wf-fact\"><dt>Sealing Faces<\/dt><dd>FF, RF and RTJ; specify suitable gasket and corrosion protection.<\/dd><\/div><div class=\"wf-fact\"><dt>Typical Environment<\/dt><dd>Industrial piping, power equipment and structural connections.<\/dd><\/div><\/dl><\/div><\/article><article class=\"wf-material-panel\" id=\"m6\" data-group=\"metal\"><figure class=\"wf-media\"><img decoding=\"async\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/08\/titanium-material-flange.webp\" alt=\"Titanium flange material\" loading=\"lazy\"><\/figure><div class=\"wf-material-copy\"><h3>Titanium<\/h3><p>High strength-to-weight ratio with strong resistance to chloride environments.<\/p><dl class=\"wf-facts\"><div class=\"wf-fact\"><dt>Common Grades<\/dt><dd>Grade 2, Grade 5 (Ti-6Al-4V)<\/dd><\/div><div class=\"wf-fact\"><dt>Pressure & Temperature<\/dt><dd>Medium to high pressure; ambient to elevated temperature according to grade.<\/dd><\/div><div class=\"wf-fact\"><dt>Sealing Faces<\/dt><dd>FF, RF and RTJ; protect the face and control galling during assembly.<\/dd><\/div><div class=\"wf-fact\"><dt>Typical Environment<\/dt><dd>Aerospace, marine, chemical and highly corrosive service.<\/dd><\/div><\/dl><\/div><\/article><article class=\"wf-material-panel\" id=\"m7\" data-group=\"plastic\"><figure class=\"wf-media\"><img decoding=\"async\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/08\/abs-material-flange.webp\" alt=\"ABS flange material\" loading=\"lazy\"><\/figure><div class=\"wf-material-copy\"><h3>ABS<\/h3><p>Lightweight, impact-resistant and economical for noncritical connections.<\/p><dl class=\"wf-facts\"><div class=\"wf-fact\"><dt>Common Grades<\/dt><dd>General-purpose ABS, flame-retardant ABS<\/dd><\/div><div class=\"wf-fact\"><dt>Pressure & Temperature<\/dt><dd>Low pressure and near-ambient temperature.<\/dd><\/div><div class=\"wf-fact\"><dt>Sealing Faces<\/dt><dd>FF and RF with soft gaskets; avoid excessive bolt preload.<\/dd><\/div><div class=\"wf-fact\"><dt>Typical Environment<\/dt><dd>Non-aggressive media, covers and light-duty piping.<\/dd><\/div><\/dl><\/div><\/article><article class=\"wf-material-panel\" id=\"m8\" data-group=\"plastic\"><figure class=\"wf-media\"><img decoding=\"async\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/08\/pvc-material-flange.webp\" alt=\"PVC flange material\" loading=\"lazy\"><\/figure><div class=\"wf-material-copy\"><h3>PVC<\/h3><p>Low weight with useful resistance to moisture, acids and alkalis.<\/p><dl class=\"wf-facts\"><div class=\"wf-fact\"><dt>Common Grades<\/dt><dd>PVC-U, PVC-C<\/dd><\/div><div class=\"wf-fact\"><dt>Pressure & Temperature<\/dt><dd>Low to medium pressure; PVC-C supports higher service temperature than PVC-U.<\/dd><\/div><div class=\"wf-fact\"><dt>Sealing Faces<\/dt><dd>FF and RF with elastomeric gaskets and controlled bolt load.<\/dd><\/div><div class=\"wf-fact\"><dt>Typical Environment<\/dt><dd>Water treatment, drainage and ambient chemical piping.<\/dd><\/div><\/dl><\/div><\/article><article class=\"wf-material-panel\" id=\"m9\" data-group=\"plastic\"><figure class=\"wf-media\"><img decoding=\"async\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/08\/pom-material-flange.webp\" alt=\"POM \/ Delrin flange material\" loading=\"lazy\"><\/figure><div class=\"wf-material-copy\"><h3>POM \/ Delrin<\/h3><p>Low friction, wear resistance and good dimensional stability.<\/p><dl class=\"wf-facts\"><div class=\"wf-fact\"><dt>Common Grades<\/dt><dd>POM-C, POM-H<\/dd><\/div><div class=\"wf-fact\"><dt>Pressure & Temperature<\/dt><dd>Low pressure; ambient to moderate temperature.<\/dd><\/div><div class=\"wf-fact\"><dt>Sealing Faces<\/dt><dd>FF and RF with soft gaskets and even contact stress.<\/dd><\/div><div class=\"wf-fact\"><dt>Typical Environment<\/dt><dd>Low-friction connections and assemblies requiring frequent disassembly.<\/dd><\/div><\/dl><\/div><\/article><article class=\"wf-material-panel\" id=\"m10\" data-group=\"plastic\"><figure class=\"wf-media\"><img decoding=\"async\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/08\/ptfe-material-flange.webp\" alt=\"PTFE flange material\" loading=\"lazy\"><\/figure><div class=\"wf-material-copy\"><h3>PTFE<\/h3><p>Exceptional chemical resistance with very low friction.<\/p><dl class=\"wf-facts\"><div class=\"wf-fact\"><dt>Common Grades<\/dt><dd>Virgin PTFE, glass-filled PTFE, other filled grades<\/dd><\/div><div class=\"wf-fact\"><dt>Pressure & Temperature<\/dt><dd>Low to medium pressure across a broad chemical-service temperature range.<\/dd><\/div><div class=\"wf-fact\"><dt>Sealing Faces<\/dt><dd>FF, RF and lined faces with soft or PTFE-compatible gaskets.<\/dd><\/div><div class=\"wf-fact\"><dt>Typical Environment<\/dt><dd>Strong chemicals, process piping and corrosion-resistant linings.<\/dd><\/div><\/dl><\/div><\/article><article class=\"wf-material-panel\" id=\"m11\" data-group=\"plastic\"><figure class=\"wf-media\"><img decoding=\"async\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/08\/HDPE-material-flange.webp\" alt=\"HDPE flange material\" loading=\"lazy\"><\/figure><div class=\"wf-material-copy\"><h3>HDPE<\/h3><p>Tough, moisture-resistant and suitable for many chemical-transfer systems.<\/p><dl class=\"wf-facts\"><div class=\"wf-fact\"><dt>Common Grades<\/dt><dd>HDPE, PE100<\/dd><\/div><div class=\"wf-fact\"><dt>Pressure & Temperature<\/dt><dd>Low to medium pressure; ambient to moderate temperature.<\/dd><\/div><div class=\"wf-fact\"><dt>Sealing Faces<\/dt><dd>FF and RF with elastomeric gaskets and allowance for creep and expansion.<\/dd><\/div><div class=\"wf-fact\"><dt>Typical Environment<\/dt><dd>Water treatment, chemical transfer and outdoor service.<\/dd><\/div><\/dl><\/div><\/article><article class=\"wf-material-panel\" id=\"m12\" data-group=\"plastic\"><figure class=\"wf-media\"><img decoding=\"async\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/08\/PP-material-flange.webp\" alt=\"PP flange material\" loading=\"lazy\"><\/figure><div class=\"wf-material-copy\"><h3>PP<\/h3><p>Low density with useful resistance to water and many chemicals.<\/p><dl class=\"wf-facts\"><div class=\"wf-fact\"><dt>Common Grades<\/dt><dd>PP-H, PP-R, PP-C<\/dd><\/div><div class=\"wf-fact\"><dt>Pressure & Temperature<\/dt><dd>Low to medium pressure; ambient to moderate temperature according to grade.<\/dd><\/div><div class=\"wf-fact\"><dt>Sealing Faces<\/dt><dd>FF and RF with soft gaskets and controlled compression.<\/dd><\/div><div class=\"wf-fact\"><dt>Typical Environment<\/dt><dd>Chemical lines, liquid transfer systems and humid environments.<\/dd><\/div><\/dl><\/div><\/article><article class=\"wf-material-panel\" id=\"m13\" data-group=\"plastic\"><figure class=\"wf-media\"><img decoding=\"async\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/08\/PEEK-material-flange.webp\" alt=\"PEEK flange material\" loading=\"lazy\"><\/figure><div class=\"wf-material-copy\"><h3>PEEK<\/h3><p>High strength, chemical resistance and elevated-temperature capability.<\/p><dl class=\"wf-facts\"><div class=\"wf-fact\"><dt>Common Grades<\/dt><dd>Virgin PEEK, glass-filled PEEK, carbon-filled PEEK<\/dd><\/div><div class=\"wf-fact\"><dt>Pressure & Temperature<\/dt><dd>Low to medium pressure; elevated temperature according to grade and design.<\/dd><\/div><div class=\"wf-fact\"><dt>Sealing Faces<\/dt><dd>FF, RF and special lined faces with compatible high-performance gaskets.<\/dd><\/div><div class=\"wf-fact\"><dt>Typical Environment<\/dt><dd>Semiconductor, medical, aerospace and demanding industrial systems.<\/dd><\/div><\/dl><\/div><\/article><article class=\"wf-material-panel\" id=\"m14\" data-group=\"plastic\"><figure class=\"wf-media\"><img decoding=\"async\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/08\/nylon-material-flange.webp\" alt=\"Nylon \/ PA flange material\" loading=\"lazy\"><\/figure><div class=\"wf-material-copy\"><h3>Nylon \/ PA<\/h3><p>Lightweight, wear-resistant and impact tolerant.<\/p><dl class=\"wf-facts\"><div class=\"wf-fact\"><dt>Common Grades<\/dt><dd>PA6, PA66, reinforced nylon<\/dd><\/div><div class=\"wf-fact\"><dt>Pressure & Temperature<\/dt><dd>Low pressure; ambient to moderate temperature with moisture allowance.<\/dd><\/div><div class=\"wf-fact\"><dt>Sealing Faces<\/dt><dd>FF and RF with soft gaskets; account for moisture-driven expansion.<\/dd><\/div><div class=\"wf-fact\"><dt>Typical Environment<\/dt><dd>Lightweight, low-pressure and general wear applications.<\/dd><\/div><\/dl><\/div><\/article><article class=\"wf-material-panel\" id=\"m15\" data-group=\"plastic\"><figure class=\"wf-media\"><img decoding=\"async\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/08\/PC-material-flange.webp\" alt=\"Polycarbonate \/ PC flange material\" loading=\"lazy\"><\/figure><div class=\"wf-material-copy\"><h3>Polycarbonate \/ PC<\/h3><p>High impact resistance, dimensional stability and optional transparency.<\/p><dl class=\"wf-facts\"><div class=\"wf-fact\"><dt>Common Grades<\/dt><dd>PC, flame-retardant PC, transparent PC<\/dd><\/div><div class=\"wf-fact\"><dt>Pressure & Temperature<\/dt><dd>Low pressure; ambient to moderate temperature.<\/dd><\/div><div class=\"wf-fact\"><dt>Sealing Faces<\/dt><dd>FF and RF with soft gaskets and low, even bolt load.<\/dd><\/div><div class=\"wf-fact\"><dt>Typical Environment<\/dt><dd>Inspection windows, transparent covers and lightweight structures.<\/dd><\/div><\/dl><\/div><\/article><article class=\"wf-material-panel\" id=\"m16\" data-group=\"plastic\"><figure class=\"wf-media\"><img decoding=\"async\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/08\/pmma-material-flange.webp\" alt=\"PMMA \/ Acrylic flange material\" loading=\"lazy\"><\/figure><div class=\"wf-material-copy\"><h3>PMMA \/ Acrylic<\/h3><p>Optical clarity, weatherability and a clean visual finish.<\/p><dl class=\"wf-facts\"><div class=\"wf-fact\"><dt>Common Grades<\/dt><dd>Cast PMMA, extruded PMMA<\/dd><\/div><div class=\"wf-fact\"><dt>Pressure & Temperature<\/dt><dd>Low pressure and near-ambient temperature.<\/dd><\/div><div class=\"wf-fact\"><dt>Sealing Faces<\/dt><dd>FF and RF with soft, nonabrasive gaskets.<\/dd><\/div><div class=\"wf-fact\"><dt>Typical Environment<\/dt><dd>Viewing windows and non-high-pressure transparent connections.<\/dd><\/div><\/dl><\/div><\/article><\/div><div class=\"wf-faces\" aria-label=\"Common flange sealing faces\"><span class=\"wf-face\">FF \u00b7 Flat Face<\/span><span class=\"wf-face\">RF \u00b7 Raised Face<\/span><span class=\"wf-face\">RTJ \u00b7 Ring Type Joint<\/span><span class=\"wf-face\">Male \/ Female<\/span><span class=\"wf-face\">Tongue & Groove<\/span><\/div><p class=\"wf-disclaimer\">Pressure and temperature suitability depend on material grade, flange size, wall thickness, bolts, gasket and the governing standard. Confirm the final selection against the drawing and operating conditions.<\/p><\/div><\/section>\n<section class=\"wf-section\" id=\"flange-capabilities\"><div class=\"wf-inner\"><p class=\"wf-kicker\">Drawing-Based Capability<\/p><h2>CNC Flange Machining Parameters<\/h2><p class=\"wf-lead\">Key production ranges are reviewed against material, geometry, clamping, sealing-face and inspection requirements.<\/p><div class=\"wf-table-wrap\"><table class=\"wf-table\"><thead><tr><th>Capability<\/th><th>Metal Flanges<\/th><th>Engineering-Plastic Flanges<\/th><\/tr><\/thead><tbody><tr><td>Typical dimensional tolerance<\/td><td>\u00b10.02 mm<\/td><td>\u00b10.05 mm<\/td><\/tr><tr><td>Outside diameter<\/td><td>10\u20131000 mm<\/td><td>10\u2013600 mm<\/td><\/tr><tr><td>Minimum wall thickness<\/td><td>1.0 mm<\/td><td>1.5 mm<\/td><\/tr><tr><td>Minimum bore \/ hole<\/td><td>2.0 mm<\/td><td>2\u20133 mm<\/td><\/tr><tr><td>Typical machined roughness<\/td><td>Ra 0.8\u20133.2 \u03bcm<\/td><td>Ra 1.6\u20133.2 \u03bcm<\/td><\/tr><\/tbody><\/table><\/div><div class=\"wf-spec-notes\"><div class=\"wf-spec-note\"><strong>Bore and OD<\/strong><span>Concentricity and fit confirmed from datums.<\/span><\/div><div class=\"wf-spec-note\"><strong>Bolt Circle<\/strong><span>Hole position and orientation checked to drawing.<\/span><\/div><div class=\"wf-spec-note\"><strong>Sealing Face<\/strong><span>Finish and groove geometry matched to gasket.<\/span><\/div><div class=\"wf-spec-note\"><strong>Runout and Flatness<\/strong><span>Inspection method defined before production.<\/span><\/div><\/div><p class=\"wf-disclaimer\">Final values depend on part size, material condition, geometry and inspection method; critical requirements must be specified on the drawing.<\/p><\/div><\/section>\n<section class=\"wf-section\" id=\"flange-production\"><div class=\"wf-inner\"><p class=\"wf-kicker\">Manufacturing and Inspection<\/p><h2>From Drawing Review to Final Inspection<\/h2><p class=\"wf-lead\">One controlled route covers programming, machining, dimensional verification and shipment protection.<\/p><div class=\"wf-production-grid\"><article class=\"wf-card wf-stage\"><figure class=\"wf-media\"><img decoding=\"async\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/07\/Weldo-Programming-team.webp\" alt=\"CNC programming and drawing review\" loading=\"lazy\"><\/figure><div class=\"wf-stage-body\"><strong>01 \u00b7 Drawing Review<\/strong><p>Confirm datums, standard, sealing face and critical dimensions.<\/p><\/div><\/article><article class=\"wf-card wf-stage\"><figure class=\"wf-media\"><img decoding=\"async\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2025\/09\/turn-mill-compound.webp\" alt=\"Turn mill machining of flange parts\" loading=\"lazy\"><\/figure><div class=\"wf-stage-body\"><strong>02 \u00b7 Controlled Machining<\/strong><p>Turn, mill, drill and groove features in the approved sequence.<\/p><\/div><\/article><article class=\"wf-card wf-stage\"><figure class=\"wf-media\"><img decoding=\"async\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/07\/CMM-testing-1.webp\" alt=\"CMM inspection of precision flange features\" loading=\"lazy\"><\/figure><div class=\"wf-stage-body\"><strong>03 \u00b7 Dimensional Inspection<\/strong><p>Verify bore, OD, bolt pattern, flatness and positional features.<\/p><\/div><\/article><article class=\"wf-card wf-stage\"><figure class=\"wf-media\"><img decoding=\"async\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2025\/11\/\u5fae\u4fe1\u56fe\u7247_20251119205415.webp\" alt=\"Manual dimensional inspection before delivery\" loading=\"lazy\"><\/figure><div class=\"wf-stage-body\"><strong>04 \u00b7 Final Release<\/strong><p>Protect sealing faces and prepare requested records for shipment.<\/p><\/div><\/article><\/div><\/div><\/section>\n<section class=\"wf-section\" id=\"flange-projects\"><div class=\"wf-inner\"><div class=\"wf-section-head\"><div><p class=\"wf-kicker\">Machined Flange Projects<\/p><h2>Custom CNC-Machined Flange Parts<\/h2><p class=\"wf-lead\">Metal and engineering-plastic flange components produced from customer drawings.<\/p><\/div><div class=\"wf-controls\"><button class=\"wf-arrow\" type=\"button\" data-project-prev aria-label=\"Previous flange projects\">\u2190<\/button><button class=\"wf-arrow\" type=\"button\" data-project-next aria-label=\"Next flange projects\">\u2192<\/button><\/div><\/div><div class=\"wf-project-viewport\"><div class=\"wf-project-track\"><figure class=\"wf-card wf-project-card\"><img decoding=\"async\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/07\/Red-Copper-flange.webp\" alt=\"Custom CNC machined flange project 1\" loading=\"lazy\" data-lightbox><\/figure><figure class=\"wf-card wf-project-card\"><img decoding=\"async\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/06\/Brass-Flanged-Threaded-Bushing.webp\" alt=\"Custom CNC machined flange project 2\" loading=\"lazy\" data-lightbox><\/figure><figure class=\"wf-card wf-project-card\"><img decoding=\"async\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/06\/316L-Stainless-Steel-CNC-Flange-Sleeve.webp\" alt=\"Custom CNC machined flange project 3\" loading=\"lazy\" data-lightbox><\/figure><figure class=\"wf-card wf-project-card\"><img decoding=\"async\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/06\/316-stainless-steel-machined-flange-plates.webp\" alt=\"Custom CNC machined flange project 4\" loading=\"lazy\" data-lightbox><\/figure><figure class=\"wf-card wf-project-card\"><img decoding=\"async\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/04\/3.1325-aluminum-Flanged-Bushing-2-1.webp\" alt=\"Custom CNC machined flange project 5\" loading=\"lazy\" data-lightbox><\/figure><figure class=\"wf-card wf-project-card\"><img decoding=\"async\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/08\/6082-t6-aluminum-part-flange-with-hard-anodize.webp\" alt=\"Custom CNC machined flange project 6\" loading=\"lazy\" data-lightbox><\/figure><figure class=\"wf-card wf-project-card\"><img decoding=\"async\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/01\/316-stainless-steel-2.webp\" alt=\"Custom CNC machined flange project 7\" loading=\"lazy\" data-lightbox><\/figure><figure class=\"wf-card wf-project-card\"><img decoding=\"async\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2025\/12\/peek-cnc-machining-parts-1.webp\" alt=\"Custom CNC machined flange project 8\" loading=\"lazy\" data-lightbox><\/figure><figure class=\"wf-card wf-project-card\"><img decoding=\"async\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2025\/12\/6061\u94dd-7.webp\" alt=\"Custom CNC machined flange project 9\" loading=\"lazy\" data-lightbox><\/figure><figure class=\"wf-card wf-project-card\"><img decoding=\"async\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2025\/11\/\u5fae\u4fe1\u56fe\u7247_202510131352311-1.webp\" alt=\"Custom CNC machined flange project 10\" loading=\"lazy\" data-lightbox><\/figure><figure class=\"wf-card wf-project-card\"><img decoding=\"async\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2025\/11\/\u5fae\u4fe1\u56fe\u7247_20251030112405.webp\" alt=\"Custom CNC machined flange project 11\" loading=\"lazy\" data-lightbox><\/figure><figure class=\"wf-card wf-project-card\"><img decoding=\"async\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2025\/11\/\u5fae\u4fe1\u56fe\u7247_20251010162345.webp\" alt=\"Custom CNC machined flange project 12\" loading=\"lazy\" data-lightbox><\/figure><\/div><\/div><\/div><\/section>\n<section class=\"wf-section\" id=\"flange-applications\"><div class=\"wf-inner wf-application-grid\"><figure class=\"wf-media wf-application-media\"><img decoding=\"async\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/08\/application-of-flange-part.webp\" alt=\"Custom flange part used in industrial equipment\" loading=\"lazy\"><\/figure><div><p class=\"wf-kicker\">Application Review<\/p><h2>Specify the Flange Around Its Operating Conditions<\/h2><p class=\"wf-lead\">A useful quotation starts with the interface, sealing and documentation requirements\u2014not only the outside diameter.<\/p><div class=\"wf-industry-list\"><div class=\"wf-industry\">Oil & Gas<\/div><div class=\"wf-industry\">Chemical Processing<\/div><div class=\"wf-industry\">Water Treatment<\/div><div class=\"wf-industry\">Power Equipment<\/div><div class=\"wf-industry\">Marine Systems<\/div><div class=\"wf-industry\">Industrial Machinery<\/div><\/div><ul class=\"wf-quote-list\"><li>2D drawing or 3D CAD file<\/li><li>Material grade and condition<\/li><li>Flange standard and pressure class<\/li><li>Sealing face and gasket requirement<\/li><li>Quantity and delivery target<\/li><li>Inspection and documentation scope<\/li><\/ul><\/div><\/div><\/section>\n<section class=\"wf-section\" id=\"flange-faq\"><div class=\"wf-inner wf-final-grid\"><div class=\"wf-faq-panel\"><p class=\"wf-kicker\">Flange Machining FAQ<\/p><h2>Project Questions<\/h2><div class=\"wf-faq-list\"><details open><summary>What information is required for a custom flange quote?<\/summary><div class=\"wf-answer\">Provide the drawing, material, quantity, flange standard or finished dimensions, sealing face and inspection requirements.<\/div><\/details><details><summary>Can custom bolt patterns and sealing grooves be machined?<\/summary><div class=\"wf-answer\">Yes. Bolt circles, nonstandard hole patterns, RTJ grooves, threads, steps and counterbores are machined from the approved drawing.<\/div><\/details><details><summary>How is flange sealing-face quality controlled?<\/summary><div class=\"wf-answer\">Face geometry, flatness, runout and roughness are checked with methods matched to the drawing and gasket requirement.<\/div><\/details><details><summary>Can an existing flange design be modified?<\/summary><div class=\"wf-answer\">Existing designs can be reviewed for bore changes, bolt-pattern changes, added ports or sealing features when adequate material remains.<\/div><\/details><details><summary>Can inspection reports and material records be supplied?<\/summary><div class=\"wf-answer\">Requested material, heat-treatment and dimensional records should be listed before quotation so they are included in the production route.<\/div><\/details><\/div><\/div><aside class=\"wf-cta-panel\"><span class=\"wf-cta-badge\">Engineering Review and Quote<\/span><h2>Send Your Flange Drawing<\/h2><p>Share the material, quantity, sealing face, tolerances and inspection scope. Weldo will return a practical manufacturing plan with transparent pricing.<\/p><a class=\"wf-btn\" href=\"https:\/\/weldomachining.com\/contact-us\/\">Upload Drawing for a Quote \u2192<\/a><span class=\"wf-confidential\">Project files and commercial information remain confidential.<\/span><\/aside><\/div><\/section><div class=\"wf-lightbox\" role=\"dialog\" aria-modal=\"true\" aria-label=\"Flange project image\"><button class=\"wf-lightbox-close\" type=\"button\" aria-label=\"Close image\">\u00d7<\/button><img decoding=\"async\" src=\"\" alt=\"\"><\/div><\/main><script>\n(function(){\n const script=document.currentScript;\n const root=script?.previousElementSibling;\n if(!root?.classList.contains('weldo-flange-page'))return;\n\n const typeViewport=root.querySelector('.wf-type-viewport');\n function scrollTypes(direction){\n if(!typeViewport)return;\n const card=typeViewport.querySelector('.wf-type-card');\n const step=(card?.getBoundingClientRect().width||typeViewport.clientWidth)+14;\n typeViewport.scrollBy({left:direction*step,behavior:'smooth'});\n }\n root.querySelector('[data-type-prev]')?.addEventListener('click',()=>scrollTypes(-1));\n root.querySelector('[data-type-next]')?.addEventListener('click',()=>scrollTypes(1));\n\n const groupButtons=[...root.querySelectorAll('[data-material-group]')];\n const tabs=[...root.querySelectorAll('.wf-material-tab')];\n const panels=[...root.querySelectorAll('.wf-material-panel')];\n const tabList=root.querySelector('.wf-tab-list');\n let activeGroup='metal';\n function showGroup(group){\n activeGroup=group;\n groupButtons.forEach(b=>b.setAttribute('aria-selected',String(b.dataset.materialGroup===group)));\n tabs.forEach(t=>t.hidden=t.dataset.group!==group);\n const first=tabs.find(t=>t.dataset.group===group);\n if(first)showMaterial(first);\n if(tabList)tabList.scrollLeft=0;\n }\n function showMaterial(tab){\n tabs.forEach(t=>t.setAttribute('aria-selected',String(t===tab)));\n panels.forEach(p=>p.classList.toggle('is-active',p.id===tab.dataset.material));\n if(tabList){\n const target=tab.offsetLeft-(tabList.clientWidth-tab.offsetWidth)\/2;\n tabList.scrollTo({left:Math.max(0,target),behavior:'smooth'});\n }\n }\n groupButtons.forEach(b=>b.addEventListener('click',()=>showGroup(b.dataset.materialGroup)));\n tabs.forEach(t=>t.addEventListener('click',()=>showMaterial(t)));\n function stepMaterial(direction){\n const groupTabs=tabs.filter(t=>t.dataset.group===activeGroup);\n if(!groupTabs.length)return;\n const current=groupTabs.findIndex(t=>t.getAttribute('aria-selected')==='true');\n const next=(Math.max(0,current)+direction+groupTabs.length)%groupTabs.length;\n showMaterial(groupTabs[next]);\n }\n root.querySelector('[data-material-prev]')?.addEventListener('click',()=>stepMaterial(-1));\n root.querySelector('[data-material-next]')?.addEventListener('click',()=>stepMaterial(1));\n showGroup(activeGroup);\n\n const projectTrack=root.querySelector('.wf-project-track');\n let projectIndex=0;\n function projectVisible(){return innerWidth<=760?1:innerWidth<=1100?3:5}\n function updateProjects(){\n if(!projectTrack)return;\n const cards=[...projectTrack.children], visible=projectVisible();\n projectIndex=Math.max(0,Math.min(projectIndex,cards.length-visible));\n const step=(projectTrack.parentElement.clientWidth+14)\/visible;\n projectTrack.style.transform='translateX(-'+(projectIndex*step)+'px)';\n }\n root.querySelector('[data-project-prev]')?.addEventListener('click',()=>{projectIndex--;updateProjects()});\n root.querySelector('[data-project-next]')?.addEventListener('click',()=>{projectIndex++;updateProjects()});\n\n const lightbox=root.querySelector('.wf-lightbox');\n const lightboxImg=lightbox?.querySelector('img');\n root.querySelectorAll('[data-lightbox]').forEach(img=>img.addEventListener('click',()=>{if(lightbox&&lightboxImg){lightboxImg.src=img.src;lightboxImg.alt=img.alt;lightbox.classList.add('is-open')}}));\n function closeLightbox(){lightbox?.classList.remove('is-open')}\n lightbox?.querySelector('button')?.addEventListener('click',closeLightbox);\n lightbox?.addEventListener('click',e=>{if(e.target===lightbox)closeLightbox()});\n document.addEventListener('keydown',e=>{if(e.key==='Escape')closeLightbox()});\n addEventListener('resize',updateProjects);\n updateProjects();\n})();\n<\/script><\/body><\/html>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Custom Flange Parts Machining UI Custom Flange Component Custom Flange Part Machining Drawing-based CNC flange machining for piping, valves, pumps and equipment interfaces. Send the flange geometry, material, sealing face and inspection requirements for an engineering review and transparent quote. Prototype, low-volume and repeat-production flange parts are planned from the approved drawing. Upload Your Flange Drawing \u2192 Flange Structures Flange Types and Design Options Choose the connection structure first, then confirm the standard, pressure class, sealing face and service conditions. \u2190\u2192 Weld Neck Tapered neck for high-pressure, high-temperature or cyclic service. Slip-On Practical welded connection for general piping systems. Blind Solid closure for isolation, testing or future expansion. Socket Weld […]<\/p>\n","protected":false},"author":2,"featured_media":13410,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-13446","page","type-page","status-publish","has-post-thumbnail","hentry"],"_links":{"self":[{"href":"https:\/\/weldomachining.com\/ja\/wp-json\/wp\/v2\/pages\/13446","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/weldomachining.com\/ja\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/weldomachining.com\/ja\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/weldomachining.com\/ja\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/weldomachining.com\/ja\/wp-json\/wp\/v2\/comments?post=13446"}],"version-history":[{"count":25,"href":"https:\/\/weldomachining.com\/ja\/wp-json\/wp\/v2\/pages\/13446\/revisions"}],"predecessor-version":[{"id":14227,"href":"https:\/\/weldomachining.com\/ja\/wp-json\/wp\/v2\/pages\/13446\/revisions\/14227"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/weldomachining.com\/ja\/wp-json\/wp\/v2\/media\/13410"}],"wp:attachment":[{"href":"https:\/\/weldomachining.com\/ja\/wp-json\/wp\/v2\/media?parent=13446"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}

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\n\t\t\t\t\t\nCustom Flange Parts Machining UI<\/title><style>html,body{margin:0;background:#fff}<\/style><\/head><body><style>\n.weldo-flange-page,\n.weldo-flange-page *{box-sizing:border-box}\n.weldo-flange-page{\n --wf-ink:#243b46;\n --wf-muted:#607985;\n --wf-blue:#34349d;\n --wf-blue-dark:#292b82;\n --wf-cyan:#4ab2d1;\n --wf-bg:#edf8fd;\n --wf-soft:#f7fbfe;\n --wf-line:#c4e3f2;\n --wf-white:#fff;\n width:100%;\n color:var(--wf-ink);\n font-family:Arial,Helvetica,sans-serif;\n font-size:15px;\n line-height:1.6;\n}\n.weldo-flange-page h1,\n.weldo-flange-page h2,\n.weldo-flange-page h3,\n.weldo-flange-page p,\n.weldo-flange-page figure,\n.weldo-flange-page ul,\n.weldo-flange-page dl{margin:0}\n.weldo-flange-page h1,\n.weldo-flange-page h2,\n.weldo-flange-page h3{line-height:1.2}\n.weldo-flange-page h1{font-size:clamp(30px,3.2vw,35px);letter-spacing:-.025em}\n.weldo-flange-page h2{font-size:clamp(27px,2.7vw,35px);letter-spacing:-.02em}\n.weldo-flange-page 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strong{display:block;margin-bottom:4px;color:var(--wf-blue)}\n.weldo-flange-page .wf-design-item span{color:var(--wf-muted)}\n\n\/* 03 Materials *\/\n.weldo-flange-page .wf-material-switch{display:flex;gap:10px;margin:28px 0 14px}\n.weldo-flange-page .wf-material-switch button,\n.weldo-flange-page .wf-material-tab{width:auto;min-width:0;border:1px solid var(--wf-line)!important;border-radius:10px;background:#fff!important;color:#496673!important;font-weight:800;white-space:nowrap;cursor:pointer;outline:0!important;transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease,background-color .2s ease}\n.weldo-flange-page .wf-material-switch button{padding:12px 18px}\n.weldo-flange-page .wf-material-switch button[aria-selected=\"true\"],\n.weldo-flange-page .wf-material-tab[aria-selected=\"true\"]{border-color:var(--wf-cyan)!important;background:#e7f6fd!important;color:var(--wf-blue)!important;box-shadow:inset 0 -3px 0 var(--wf-cyan),0 7px 16px rgba(52,52,157,.1)!important;transform:scale(1.035)}\n.weldo-flange-page .wf-material-switch button:hover,\n.weldo-flange-page .wf-material-switch button:focus-visible,\n.weldo-flange-page .wf-material-tab:hover,\n.weldo-flange-page .wf-material-tab:focus-visible{border-color:var(--wf-cyan)!important;background:#f5fbfe!important;color:var(--wf-blue)!important;transform:scale(1.035)}\n.weldo-flange-page .wf-material-switch button:active,\n.weldo-flange-page .wf-material-tab:active{border-color:var(--wf-cyan)!important;background:#e7f6fd!important;color:var(--wf-blue)!important;transform:scale(1.02)}\n.weldo-flange-page .wf-material-tab[hidden]{display:none!important}\n.weldo-flange-page .wf-tab-row{display:grid;grid-template-columns:44px minmax(0,1fr) 44px;gap:10px;align-items:center}\n.weldo-flange-page .wf-tab-window{overflow:hidden}\n.weldo-flange-page .wf-tab-list{display:flex;gap:10px;overflow-x:auto;scroll-behavior:smooth;scrollbar-width:none}\n.weldo-flange-page .wf-tab-list::-webkit-scrollbar{display:none}\n.weldo-flange-page .wf-material-tab{flex:0 0 auto;padding:11px 17px}\n.weldo-flange-page .wf-material-panel{display:none;margin-top:18px}\n.weldo-flange-page .wf-material-panel.is-active{display:grid;grid-template-columns:minmax(280px,.72fr) minmax(0,1.28fr);gap:30px;align-items:center;padding:22px;border:1px solid var(--wf-line);border-radius:18px;background:#fff}\n.weldo-flange-page .wf-material-panel .wf-media{height:330px;padding:14px}\n.weldo-flange-page .wf-material-copy h3{color:var(--wf-blue);font-size:25px}\n.weldo-flange-page .wf-material-copy>p{margin-top:10px;color:var(--wf-muted)}\n.weldo-flange-page .wf-facts{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;margin-top:18px}\n.weldo-flange-page .wf-fact{padding:15px;border:1px solid var(--wf-line);border-radius:12px;background:var(--wf-bg)}\n.weldo-flange-page .wf-fact dt{color:var(--wf-blue);font-weight:800}\n.weldo-flange-page .wf-fact dd{margin:4px 0 0;color:var(--wf-muted)}\n.weldo-flange-page .wf-faces{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}\n.weldo-flange-page .wf-face{padding:8px 12px;border-radius:999px;background:#e6f5fc;color:#315363;font-weight:800}\n\n\/* 04 Specs *\/\n.weldo-flange-page .wf-table-wrap{overflow-x:auto;margin-top:28px;border:1px solid var(--wf-line);border-radius:16px;background:#fff}\n.weldo-flange-page .wf-table{width:100%;min-width:720px;border-collapse:collapse}\n.weldo-flange-page .wf-table th,\n.weldo-flange-page .wf-table td{padding:15px 18px;border-bottom:1px solid var(--wf-line);text-align:left}\n.weldo-flange-page .wf-table th{background:#e8f5fb;color:var(--wf-blue);font-weight:800}\n.weldo-flange-page .wf-table tr:last-child td{border-bottom:0}\n.weldo-flange-page .wf-spec-notes{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px;margin-top:18px}\n.weldo-flange-page .wf-spec-note{padding:17px;border:1px solid var(--wf-line);border-radius:13px;background:#fff}\n.weldo-flange-page .wf-spec-note strong{display:block;margin-bottom:5px;color:var(--wf-blue)}\n.weldo-flange-page .wf-spec-note span{color:var(--wf-muted)}\n.weldo-flange-page .wf-disclaimer{margin-top:12px;color:#78909b;font-size:14px}\n\n\/* 05 Production *\/\n.weldo-flange-page .wf-production-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px;margin-top:28px}\n.weldo-flange-page .wf-stage .wf-media{height:230px;border:0;border-radius:0}\n.weldo-flange-page .wf-stage-body{padding:16px}\n.weldo-flange-page .wf-stage-body strong{display:block;color:var(--wf-blue)}\n.weldo-flange-page .wf-stage-body p{margin-top:5px;color:var(--wf-muted)}\n\n\/* 06 Projects *\/\n.weldo-flange-page .wf-project-viewport{overflow:hidden}\n.weldo-flange-page .wf-project-track{display:flex;gap:14px;transition:transform .38s ease}\n.weldo-flange-page .wf-project-card{flex:0 0 calc((100% - 56px)\/5);height:220px;padding:10px}\n.weldo-flange-page .wf-project-card img{display:block;width:100%;height:100%;object-fit:contain;border-radius:10px;background:#eaf6fc;cursor:zoom-in}\n.weldo-flange-page .wf-lightbox{position:fixed;z-index:99999;inset:0;display:none;place-items:center;padding:24px;background:rgba(18,35,44,.88)}\n.weldo-flange-page .wf-lightbox.is-open{display:grid}\n.weldo-flange-page .wf-lightbox img{max-width:min(1100px,92vw);max-height:88vh;object-fit:contain;border-radius:14px;background:#fff}\n.weldo-flange-page .wf-lightbox-close{position:absolute;top:20px;right:22px;width:48px;height:48px;border:0;border-radius:50%;background:#fff;color:var(--wf-blue);font-size:27px;cursor:pointer}\n\n\/* 07 Applications *\/\n.weldo-flange-page .wf-application-grid{display:grid;grid-template-columns:minmax(380px,.82fr) minmax(0,1.18fr);gap:34px;align-items:center}\n.weldo-flange-page .wf-application-media{height:410px;padding:16px}\n.weldo-flange-page .wf-industry-list{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:9px;margin-top:20px}\n.weldo-flange-page .wf-industry{padding:11px 12px;border:1px solid var(--wf-line);border-radius:10px;background:#fff;color:var(--wf-blue);font-weight:800;text-align:center}\n.weldo-flange-page .wf-quote-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;margin-top:20px;padding:0;list-style:none}\n.weldo-flange-page .wf-quote-list li{position:relative;padding:11px 12px 11px 38px;border:1px solid var(--wf-line);border-radius:10px;background:#fff;color:var(--wf-muted)}\n.weldo-flange-page .wf-quote-list li:before{content:\"\u2713\";position:absolute;left:13px;color:var(--wf-blue);font-weight:900}\n\n\/* 08 FAQ + CTA *\/\n.weldo-flange-page .wf-final-grid{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(360px,.85fr);gap:28px;align-items:stretch}\n.weldo-flange-page .wf-faq-panel,\n.weldo-flange-page .wf-cta-panel{height:100%;min-height:590px;border:1px solid var(--wf-line);border-radius:20px;background:#fff}\n.weldo-flange-page .wf-faq-panel{padding:30px}\n.weldo-flange-page .wf-faq-list{margin-top:24px}\n.weldo-flange-page details{margin-bottom:10px;border:1px solid var(--wf-line);border-radius:12px;background:var(--wf-soft);overflow:hidden}\n.weldo-flange-page summary{position:relative;padding:18px 50px 18px 18px;color:var(--wf-ink);font-weight:800;cursor:pointer;list-style:none}\n.weldo-flange-page summary::-webkit-details-marker{display:none}\n.weldo-flange-page summary:after{content:\"+\";position:absolute;right:18px;top:50%;transform:translateY(-50%);color:var(--wf-blue);font-size:23px}\n.weldo-flange-page details[open] summary:after{content:\"\u2212\"}\n.weldo-flange-page .wf-answer{padding:0 18px 18px;color:var(--wf-muted)}\n.weldo-flange-page .wf-cta-panel{display:flex;flex-direction:column;justify-content:center;padding:42px;background:linear-gradient(145deg,#e9f7fd 0%,#f8fcff 62%,#e7f1ff 100%)}\n.weldo-flange-page .wf-cta-badge{align-self:flex-start;padding:7px 12px;border:1px solid var(--wf-line);border-radius:999px;background:#fff;color:var(--wf-blue);font-weight:800}\n.weldo-flange-page .wf-cta-panel h2{margin-top:20px}\n.weldo-flange-page .wf-cta-panel p{margin-top:15px;color:var(--wf-muted)}\n.weldo-flange-page .wf-confidential{margin-top:18px;color:#78909b;font-size:14px}\n\n@media(max-width:1100px){\n .weldo-flange-page .wf-hero-grid,\n .weldo-flange-page .wf-application-grid,\n .weldo-flange-page .wf-final-grid{grid-template-columns:1fr}\n .weldo-flange-page .wf-hero-media{height:400px}\n .weldo-flange-page .wf-design-grid,\n .weldo-flange-page .wf-production-grid,\n .weldo-flange-page .wf-spec-notes{grid-template-columns:repeat(2,minmax(0,1fr))}\n .weldo-flange-page .wf-project-card{flex-basis:calc((100% - 28px)\/3)}\n .weldo-flange-page .wf-type-track{grid-template-columns:repeat(2,minmax(0,1fr))}\n .weldo-flange-page .wf-faq-panel,\n .weldo-flange-page .wf-cta-panel{min-height:0}\n}\n@media(max-width:760px){\n .weldo-flange-page .wf-section{padding:50px 16px}\n .weldo-flange-page .wf-section-head{align-items:flex-start}\n .weldo-flange-page .wf-hero-media{height:320px}\n .weldo-flange-page .wf-material-panel.is-active{grid-template-columns:1fr;padding:15px}\n .weldo-flange-page .wf-material-panel .wf-media{height:280px}\n .weldo-flange-page .wf-facts{grid-template-columns:1fr}\n .weldo-flange-page .wf-production-grid,\n .weldo-flange-page .wf-spec-notes{grid-template-columns:1fr}\n .weldo-flange-page .wf-stage .wf-media{height:260px}\n .weldo-flange-page .wf-project-card{flex-basis:100%;height:300px}\n .weldo-flange-page .wf-industry-list,\n .weldo-flange-page .wf-quote-list{grid-template-columns:1fr}\n .weldo-flange-page .wf-application-media{height:320px}\n .weldo-flange-page .wf-faq-panel,\n .weldo-flange-page .wf-cta-panel{padding:24px}\n .weldo-flange-page #flange-projects .wf-section-head{\n display:flex;\n flex-direction:column;\n align-items:stretch;\n gap:12px;\n margin-bottom:12px;\n }\n .weldo-flange-page #flange-projects .wf-controls{\n align-self:flex-end;\n margin:0;\n }\n .weldo-flange-page .wf-type-card .wf-media{height:230px}\n .weldo-flange-page .wf-type-controls{display:none}\n .weldo-flange-page .wf-type-viewport{\n overflow:visible;\n padding-bottom:0;\n }\n .weldo-flange-page .wf-type-track{\n display:grid;\n grid-template-columns:1fr;\n width:100%;\n gap:14px;\n }\n .weldo-flange-page .wf-type-card{\n width:100%;\n }\n}\n@media(max-width:520px){\n .weldo-flange-page .wf-kicker:before{width:36px}\n .weldo-flange-page .wf-design-grid{grid-template-columns:1fr}\n .weldo-flange-page .wf-material-switch{overflow-x:auto}\n .weldo-flange-page .wf-project-card{height:260px}\n}\n<\/style><main class=\"weldo-flange-page\">\n<section class=\"wf-section wf-hero\" id=\"flange-hero\">\n <div class=\"wf-inner wf-hero-grid\">\n\n \n <figure class=\"wf-media wf-hero-media\" data-image-role=\"hero\">\n <img decoding=\"async\"\n src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/08\/custom-flange-part.webp\"\n alt=\"Custom CNC machined flange part\"\n fetchpriority=\"high\"\n >\n <\/figure>\n\n <div class=\"wf-hero-copy\">\n <p class=\"wf-kicker\">Custom Flange Component<\/p>\n <h1>Custom Flange Part Machining<\/h1>\n <p class=\"wf-lead\">\n Drawing-based CNC flange machining for piping, valves, pumps and equipment\n interfaces. Send the flange geometry, material, sealing face and inspection\n requirements for an engineering review and transparent quote.\n <\/p>\n <p class=\"wf-hero-note\">\n Prototype, low-volume and repeat-production flange parts are planned from\n the approved drawing.\n <\/p>\n <a class=\"wf-btn\" href=\"https:\/\/weldomachining.com\/contact-us\/\">\n Upload Your Flange Drawing \u2192\n <\/a>\n <\/div>\n\n <\/div>\n<\/section>\n<section class=\"wf-section\" id=\"flange-types\"><div class=\"wf-inner\"><div class=\"wf-section-head\"><div><p class=\"wf-kicker\">Flange Structures<\/p><h2>Flange Types and Design Options<\/h2><p class=\"wf-lead\">Choose the connection structure first, then confirm the standard, pressure class, sealing face and service conditions.<\/p><\/div><div class=\"wf-controls wf-type-controls\"><button class=\"wf-arrow\" type=\"button\" data-type-prev aria-label=\"Previous flange types\">\u2190<\/button><button class=\"wf-arrow\" type=\"button\" data-type-next aria-label=\"Next flange types\">\u2192<\/button><\/div><\/div><div class=\"wf-type-viewport\"><div class=\"wf-type-track\"><article class=\"wf-card wf-type-card\"><figure class=\"wf-media\"><img decoding=\"async\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/08\/Weld-Neck-Flange.webp\" alt=\"Weld Neck flange\" loading=\"lazy\"><\/figure><h3>Weld Neck<\/h3><p>Tapered neck for high-pressure, high-temperature or cyclic service.<\/p><\/article><article class=\"wf-card wf-type-card\"><figure class=\"wf-media\"><img decoding=\"async\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/08\/Slip-On-Flange.webp\" alt=\"Slip-On flange\" loading=\"lazy\"><\/figure><h3>Slip-On<\/h3><p>Practical welded connection for general piping systems.<\/p><\/article><article class=\"wf-card wf-type-card\"><figure class=\"wf-media\"><img decoding=\"async\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/08\/blind-flange.webp\" alt=\"Blind flange\" loading=\"lazy\"><\/figure><h3>Blind<\/h3><p>Solid closure for isolation, testing or future expansion.<\/p><\/article><article class=\"wf-card wf-type-card\"><figure class=\"wf-media\"><img decoding=\"async\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/08\/Socket-Weld-Flange.webp\" alt=\"Socket Weld flange\" loading=\"lazy\"><\/figure><h3>Socket Weld<\/h3><p>Compact rigid connection for selected small-bore piping.<\/p><\/article><article class=\"wf-card wf-type-card\"><figure class=\"wf-media\"><img decoding=\"async\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/08\/Lap-Joint-Flange.webp\" alt=\"Lap Joint flange\" loading=\"lazy\"><\/figure><h3>Lap Joint<\/h3><p>Loose flange arrangement for alignment and repeated disassembly.<\/p><\/article><article class=\"wf-card wf-type-card\"><figure class=\"wf-media\"><img decoding=\"async\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/08\/Threaded-Flange.webp\" alt=\"Threaded flange\" loading=\"lazy\"><\/figure><h3>Threaded<\/h3><p>Non-welded connection where the design and service permit threads.<\/p><\/article><article class=\"wf-card wf-type-card\"><figure class=\"wf-media\"><img decoding=\"async\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/08\/Orifice-flange.webp\" alt=\"Orifice flange\" loading=\"lazy\"><\/figure><h3>Orifice<\/h3><p>Machined pressure taps and plate location for flow measurement.<\/p><\/article><article class=\"wf-card wf-type-card\"><figure class=\"wf-media\"><img decoding=\"async\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/08\/Integral-Flange.webp\" alt=\"Integral flange\" loading=\"lazy\"><\/figure><h3>Integral<\/h3><p>Rigid flange formed with the pipe or equipment body.<\/p><\/article><\/div><\/div><div class=\"wf-design-grid\"><div class=\"wf-design-item\"><strong>Connection Fit<\/strong><span>OD, bore, thickness and mating interfaces.<\/span><\/div><div class=\"wf-design-item\"><strong>Bolt Pattern<\/strong><span>Bolt circle, hole count, diameter and orientation.<\/span><\/div><div class=\"wf-design-item\"><strong>Sealing Features<\/strong><span>FF, RF, RTJ and drawing-specific grooves.<\/span><\/div><div class=\"wf-design-item\"><strong>Machined Details<\/strong><span>Threads, counterbores, steps, chamfers and ports.<\/span><\/div><\/div><\/div><\/section>\n<section class=\"wf-section\" id=\"flange-materials\"><div class=\"wf-inner\"><p class=\"wf-kicker\">Material and Sealing Selection<\/p><h2>Flange Materials and Sealing Faces<\/h2><p class=\"wf-lead\">Compare metals and engineering plastics by grade, load, temperature, corrosion exposure, sealing face and service environment.<\/p><div class=\"wf-material-switch\" role=\"tablist\"><button type=\"button\" aria-selected=\"true\" data-material-group=\"metal\">Metal Materials<\/button><button type=\"button\" aria-selected=\"false\" data-material-group=\"plastic\">Engineering Plastics<\/button><\/div><div class=\"wf-tab-row\"><button class=\"wf-arrow\" type=\"button\" data-material-prev aria-label=\"Previous material\">\u2190<\/button><div class=\"wf-tab-window\"><div class=\"wf-tab-list\" role=\"tablist\"><button class=\"wf-material-tab\" type=\"button\" role=\"tab\" aria-selected=\"true\" data-group=\"metal\" data-material=\"m0\">Aluminum<\/button><button class=\"wf-material-tab\" type=\"button\" role=\"tab\" aria-selected=\"false\" data-group=\"metal\" data-material=\"m1\">Stainless Steel<\/button><button class=\"wf-material-tab\" type=\"button\" role=\"tab\" aria-selected=\"false\" data-group=\"metal\" data-material=\"m2\">Copper<\/button><button class=\"wf-material-tab\" type=\"button\" role=\"tab\" aria-selected=\"false\" data-group=\"metal\" data-material=\"m3\">Brass<\/button><button class=\"wf-material-tab\" type=\"button\" role=\"tab\" aria-selected=\"false\" data-group=\"metal\" data-material=\"m4\">Bronze<\/button><button class=\"wf-material-tab\" type=\"button\" role=\"tab\" aria-selected=\"false\" data-group=\"metal\" data-material=\"m5\">Carbon Steel<\/button><button class=\"wf-material-tab\" type=\"button\" role=\"tab\" aria-selected=\"false\" data-group=\"metal\" data-material=\"m6\">Titanium<\/button><button class=\"wf-material-tab\" type=\"button\" role=\"tab\" aria-selected=\"false\" data-group=\"plastic\" data-material=\"m7\">ABS<\/button><button class=\"wf-material-tab\" type=\"button\" role=\"tab\" aria-selected=\"false\" data-group=\"plastic\" data-material=\"m8\">PVC<\/button><button class=\"wf-material-tab\" type=\"button\" role=\"tab\" aria-selected=\"false\" data-group=\"plastic\" data-material=\"m9\">POM \/ Delrin<\/button><button class=\"wf-material-tab\" type=\"button\" role=\"tab\" aria-selected=\"false\" data-group=\"plastic\" data-material=\"m10\">PTFE<\/button><button class=\"wf-material-tab\" type=\"button\" role=\"tab\" aria-selected=\"false\" data-group=\"plastic\" data-material=\"m11\">HDPE<\/button><button class=\"wf-material-tab\" type=\"button\" role=\"tab\" aria-selected=\"false\" data-group=\"plastic\" data-material=\"m12\">PP<\/button><button class=\"wf-material-tab\" type=\"button\" role=\"tab\" aria-selected=\"false\" data-group=\"plastic\" data-material=\"m13\">PEEK<\/button><button class=\"wf-material-tab\" type=\"button\" role=\"tab\" aria-selected=\"false\" data-group=\"plastic\" data-material=\"m14\">Nylon \/ PA<\/button><button class=\"wf-material-tab\" type=\"button\" role=\"tab\" aria-selected=\"false\" data-group=\"plastic\" data-material=\"m15\">Polycarbonate \/ PC<\/button><button class=\"wf-material-tab\" type=\"button\" role=\"tab\" aria-selected=\"false\" data-group=\"plastic\" data-material=\"m16\">PMMA \/ Acrylic<\/button><\/div><\/div><button class=\"wf-arrow\" type=\"button\" data-material-next aria-label=\"Next material\">\u2192<\/button><\/div><div class=\"wf-material-panels\"><article class=\"wf-material-panel is-active\" id=\"m0\" data-group=\"metal\"><figure class=\"wf-media\"><img decoding=\"async\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/08\/aluminum-material-flange.webp\" alt=\"Aluminum flange material\" loading=\"lazy\"><\/figure><div class=\"wf-material-copy\"><h3>Aluminum<\/h3><p>Lightweight, easy to machine and resistant to atmospheric corrosion.<\/p><dl class=\"wf-facts\"><div class=\"wf-fact\"><dt>Common Grades<\/dt><dd>6061-T6, 6082-T6, 7075-T6<\/dd><\/div><div class=\"wf-fact\"><dt>Pressure & Temperature<\/dt><dd>Low to medium pressure; typically ambient to moderate temperature.<\/dd><\/div><div class=\"wf-fact\"><dt>Sealing Faces<\/dt><dd>FF and RF; use compatible soft or coated gaskets to protect the face.<\/dd><\/div><div class=\"wf-fact\"><dt>Typical Environment<\/dt><dd>Lightweight equipment, ventilation and general industrial piping.<\/dd><\/div><\/dl><\/div><\/article><article class=\"wf-material-panel\" id=\"m1\" data-group=\"metal\"><figure class=\"wf-media\"><img decoding=\"async\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/08\/stainless-steel-material-flange.webp\" alt=\"Stainless Steel flange material\" loading=\"lazy\"><\/figure><div class=\"wf-material-copy\"><h3>Stainless Steel<\/h3><p>High strength, cleanability and broad corrosion resistance.<\/p><dl class=\"wf-facts\"><div class=\"wf-fact\"><dt>Common Grades<\/dt><dd>304, 304L, 316, 316L, 321<\/dd><\/div><div class=\"wf-fact\"><dt>Pressure & Temperature<\/dt><dd>Medium to high pressure; ambient to elevated temperature according to grade.<\/dd><\/div><div class=\"wf-fact\"><dt>Sealing Faces<\/dt><dd>FF, RF and RTJ; face finish must match the gasket and service standard.<\/dd><\/div><div class=\"wf-fact\"><dt>Typical Environment<\/dt><dd>Chemical, medical, food, pharmaceutical and wet-service systems.<\/dd><\/div><\/dl><\/div><\/article><article class=\"wf-material-panel\" id=\"m2\" data-group=\"metal\"><figure class=\"wf-media\"><img decoding=\"async\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/08\/copper-material-flange.webp\" alt=\"Copper flange material\" loading=\"lazy\"><\/figure><div class=\"wf-material-copy\"><h3>Copper<\/h3><p>Excellent thermal and electrical conductivity with good machinability.<\/p><dl class=\"wf-facts\"><div class=\"wf-fact\"><dt>Common Grades<\/dt><dd>C101, C110, C122<\/dd><\/div><div class=\"wf-fact\"><dt>Pressure & Temperature<\/dt><dd>Low to medium pressure; low to moderate temperature.<\/dd><\/div><div class=\"wf-fact\"><dt>Sealing Faces<\/dt><dd>FF and RF with a gasket compatible with copper and the process fluid.<\/dd><\/div><div class=\"wf-fact\"><dt>Typical Environment<\/dt><dd>Cooling loops, heat exchangers, electrical and temperature-control systems.<\/dd><\/div><\/dl><\/div><\/article><article class=\"wf-material-panel\" id=\"m3\" data-group=\"metal\"><figure class=\"wf-media\"><img decoding=\"async\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/08\/brass-material-flange.webp\" alt=\"Brass flange material\" loading=\"lazy\"><\/figure><div class=\"wf-material-copy\"><h3>Brass<\/h3><p>Free-cutting, wear-resistant and dimensionally stable.<\/p><dl class=\"wf-facts\"><div class=\"wf-fact\"><dt>Common Grades<\/dt><dd>C360, C464, C693<\/dd><\/div><div class=\"wf-fact\"><dt>Pressure & Temperature<\/dt><dd>Low to medium pressure; ambient to moderate temperature.<\/dd><\/div><div class=\"wf-fact\"><dt>Sealing Faces<\/dt><dd>FF and RF; confirm gasket and galvanic compatibility.<\/dd><\/div><div class=\"wf-fact\"><dt>Typical Environment<\/dt><dd>Water systems, instruments, valves and non-aggressive fluids.<\/dd><\/div><\/dl><\/div><\/article><article class=\"wf-material-panel\" id=\"m4\" data-group=\"metal\"><figure class=\"wf-media\"><img decoding=\"async\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/08\/bronze-material-flange.webp\" alt=\"Bronze flange material\" loading=\"lazy\"><\/figure><div class=\"wf-material-copy\"><h3>Bronze<\/h3><p>Wear resistance, dependable sliding behavior and strong seawater performance.<\/p><dl class=\"wf-facts\"><div class=\"wf-fact\"><dt>Common Grades<\/dt><dd>C932, C954, C958<\/dd><\/div><div class=\"wf-fact\"><dt>Pressure & Temperature<\/dt><dd>Low to medium pressure; ambient to moderate temperature.<\/dd><\/div><div class=\"wf-fact\"><dt>Sealing Faces<\/dt><dd>FF, RF and RTJ when the alloy, gasket and service specification are compatible.<\/dd><\/div><div class=\"wf-fact\"><dt>Typical Environment<\/dt><dd>Marine equipment, pumps, valves and water-bearing systems.<\/dd><\/div><\/dl><\/div><\/article><article class=\"wf-material-panel\" id=\"m5\" data-group=\"metal\"><figure class=\"wf-media\"><img decoding=\"async\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/08\/carbon-steel-material-flange.webp\" alt=\"Carbon Steel flange material\" loading=\"lazy\"><\/figure><div class=\"wf-material-copy\"><h3>Carbon Steel<\/h3><p>High load capacity, broad availability and cost efficiency.<\/p><dl class=\"wf-facts\"><div class=\"wf-fact\"><dt>Common Grades<\/dt><dd>A105, A350 LF2, C20, Q235<\/dd><\/div><div class=\"wf-fact\"><dt>Pressure & Temperature<\/dt><dd>Low to high pressure depending on grade, dimensions and governing standard.<\/dd><\/div><div class=\"wf-fact\"><dt>Sealing Faces<\/dt><dd>FF, RF and RTJ; specify suitable gasket and corrosion protection.<\/dd><\/div><div class=\"wf-fact\"><dt>Typical Environment<\/dt><dd>Industrial piping, power equipment and structural connections.<\/dd><\/div><\/dl><\/div><\/article><article class=\"wf-material-panel\" id=\"m6\" data-group=\"metal\"><figure class=\"wf-media\"><img decoding=\"async\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/08\/titanium-material-flange.webp\" alt=\"Titanium flange material\" loading=\"lazy\"><\/figure><div class=\"wf-material-copy\"><h3>Titanium<\/h3><p>High strength-to-weight ratio with strong resistance to chloride environments.<\/p><dl class=\"wf-facts\"><div class=\"wf-fact\"><dt>Common Grades<\/dt><dd>Grade 2, Grade 5 (Ti-6Al-4V)<\/dd><\/div><div class=\"wf-fact\"><dt>Pressure & Temperature<\/dt><dd>Medium to high pressure; ambient to elevated temperature according to grade.<\/dd><\/div><div class=\"wf-fact\"><dt>Sealing Faces<\/dt><dd>FF, RF and RTJ; protect the face and control galling during assembly.<\/dd><\/div><div class=\"wf-fact\"><dt>Typical Environment<\/dt><dd>Aerospace, marine, chemical and highly corrosive service.<\/dd><\/div><\/dl><\/div><\/article><article class=\"wf-material-panel\" id=\"m7\" data-group=\"plastic\"><figure class=\"wf-media\"><img decoding=\"async\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/08\/abs-material-flange.webp\" alt=\"ABS flange material\" loading=\"lazy\"><\/figure><div class=\"wf-material-copy\"><h3>ABS<\/h3><p>Lightweight, impact-resistant and economical for noncritical connections.<\/p><dl class=\"wf-facts\"><div class=\"wf-fact\"><dt>Common Grades<\/dt><dd>General-purpose ABS, flame-retardant ABS<\/dd><\/div><div class=\"wf-fact\"><dt>Pressure & Temperature<\/dt><dd>Low pressure and near-ambient temperature.<\/dd><\/div><div class=\"wf-fact\"><dt>Sealing Faces<\/dt><dd>FF and RF with soft gaskets; avoid excessive bolt preload.<\/dd><\/div><div class=\"wf-fact\"><dt>Typical Environment<\/dt><dd>Non-aggressive media, covers and light-duty piping.<\/dd><\/div><\/dl><\/div><\/article><article class=\"wf-material-panel\" id=\"m8\" data-group=\"plastic\"><figure class=\"wf-media\"><img decoding=\"async\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/08\/pvc-material-flange.webp\" alt=\"PVC flange material\" loading=\"lazy\"><\/figure><div class=\"wf-material-copy\"><h3>PVC<\/h3><p>Low weight with useful resistance to moisture, acids and alkalis.<\/p><dl class=\"wf-facts\"><div class=\"wf-fact\"><dt>Common Grades<\/dt><dd>PVC-U, PVC-C<\/dd><\/div><div class=\"wf-fact\"><dt>Pressure & Temperature<\/dt><dd>Low to medium pressure; PVC-C supports higher service temperature than PVC-U.<\/dd><\/div><div class=\"wf-fact\"><dt>Sealing Faces<\/dt><dd>FF and RF with elastomeric gaskets and controlled bolt load.<\/dd><\/div><div class=\"wf-fact\"><dt>Typical Environment<\/dt><dd>Water treatment, drainage and ambient chemical piping.<\/dd><\/div><\/dl><\/div><\/article><article class=\"wf-material-panel\" id=\"m9\" data-group=\"plastic\"><figure class=\"wf-media\"><img decoding=\"async\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/08\/pom-material-flange.webp\" alt=\"POM \/ Delrin flange material\" loading=\"lazy\"><\/figure><div class=\"wf-material-copy\"><h3>POM \/ Delrin<\/h3><p>Low friction, wear resistance and good dimensional stability.<\/p><dl class=\"wf-facts\"><div class=\"wf-fact\"><dt>Common Grades<\/dt><dd>POM-C, POM-H<\/dd><\/div><div class=\"wf-fact\"><dt>Pressure & Temperature<\/dt><dd>Low pressure; ambient to moderate temperature.<\/dd><\/div><div class=\"wf-fact\"><dt>Sealing Faces<\/dt><dd>FF and RF with soft gaskets and even contact stress.<\/dd><\/div><div class=\"wf-fact\"><dt>Typical Environment<\/dt><dd>Low-friction connections and assemblies requiring frequent disassembly.<\/dd><\/div><\/dl><\/div><\/article><article class=\"wf-material-panel\" id=\"m10\" data-group=\"plastic\"><figure class=\"wf-media\"><img decoding=\"async\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/08\/ptfe-material-flange.webp\" alt=\"PTFE flange material\" loading=\"lazy\"><\/figure><div class=\"wf-material-copy\"><h3>PTFE<\/h3><p>Exceptional chemical resistance with very low friction.<\/p><dl class=\"wf-facts\"><div class=\"wf-fact\"><dt>Common Grades<\/dt><dd>Virgin PTFE, glass-filled PTFE, other filled grades<\/dd><\/div><div class=\"wf-fact\"><dt>Pressure & Temperature<\/dt><dd>Low to medium pressure across a broad chemical-service temperature range.<\/dd><\/div><div class=\"wf-fact\"><dt>Sealing Faces<\/dt><dd>FF, RF and lined faces with soft or PTFE-compatible gaskets.<\/dd><\/div><div class=\"wf-fact\"><dt>Typical Environment<\/dt><dd>Strong chemicals, process piping and corrosion-resistant linings.<\/dd><\/div><\/dl><\/div><\/article><article class=\"wf-material-panel\" id=\"m11\" data-group=\"plastic\"><figure class=\"wf-media\"><img decoding=\"async\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/08\/HDPE-material-flange.webp\" alt=\"HDPE flange material\" loading=\"lazy\"><\/figure><div class=\"wf-material-copy\"><h3>HDPE<\/h3><p>Tough, moisture-resistant and suitable for many chemical-transfer systems.<\/p><dl class=\"wf-facts\"><div class=\"wf-fact\"><dt>Common Grades<\/dt><dd>HDPE, PE100<\/dd><\/div><div class=\"wf-fact\"><dt>Pressure & Temperature<\/dt><dd>Low to medium pressure; ambient to moderate temperature.<\/dd><\/div><div class=\"wf-fact\"><dt>Sealing Faces<\/dt><dd>FF and RF with elastomeric gaskets and allowance for creep and expansion.<\/dd><\/div><div class=\"wf-fact\"><dt>Typical Environment<\/dt><dd>Water treatment, chemical transfer and outdoor service.<\/dd><\/div><\/dl><\/div><\/article><article class=\"wf-material-panel\" id=\"m12\" data-group=\"plastic\"><figure class=\"wf-media\"><img decoding=\"async\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/08\/PP-material-flange.webp\" alt=\"PP flange material\" loading=\"lazy\"><\/figure><div class=\"wf-material-copy\"><h3>PP<\/h3><p>Low density with useful resistance to water and many chemicals.<\/p><dl class=\"wf-facts\"><div class=\"wf-fact\"><dt>Common Grades<\/dt><dd>PP-H, PP-R, PP-C<\/dd><\/div><div class=\"wf-fact\"><dt>Pressure & Temperature<\/dt><dd>Low to medium pressure; ambient to moderate temperature according to grade.<\/dd><\/div><div class=\"wf-fact\"><dt>Sealing Faces<\/dt><dd>FF and RF with soft gaskets and controlled compression.<\/dd><\/div><div class=\"wf-fact\"><dt>Typical Environment<\/dt><dd>Chemical lines, liquid transfer systems and humid environments.<\/dd><\/div><\/dl><\/div><\/article><article class=\"wf-material-panel\" id=\"m13\" data-group=\"plastic\"><figure class=\"wf-media\"><img decoding=\"async\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/08\/PEEK-material-flange.webp\" alt=\"PEEK flange material\" loading=\"lazy\"><\/figure><div class=\"wf-material-copy\"><h3>PEEK<\/h3><p>High strength, chemical resistance and elevated-temperature capability.<\/p><dl class=\"wf-facts\"><div class=\"wf-fact\"><dt>Common Grades<\/dt><dd>Virgin PEEK, glass-filled PEEK, carbon-filled PEEK<\/dd><\/div><div class=\"wf-fact\"><dt>Pressure & Temperature<\/dt><dd>Low to medium pressure; elevated temperature according to grade and design.<\/dd><\/div><div class=\"wf-fact\"><dt>Sealing Faces<\/dt><dd>FF, RF and special lined faces with compatible high-performance gaskets.<\/dd><\/div><div class=\"wf-fact\"><dt>Typical Environment<\/dt><dd>Semiconductor, medical, aerospace and demanding industrial systems.<\/dd><\/div><\/dl><\/div><\/article><article class=\"wf-material-panel\" id=\"m14\" data-group=\"plastic\"><figure class=\"wf-media\"><img decoding=\"async\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/08\/nylon-material-flange.webp\" alt=\"Nylon \/ PA flange material\" loading=\"lazy\"><\/figure><div class=\"wf-material-copy\"><h3>Nylon \/ PA<\/h3><p>Lightweight, wear-resistant and impact tolerant.<\/p><dl class=\"wf-facts\"><div class=\"wf-fact\"><dt>Common Grades<\/dt><dd>PA6, PA66, reinforced nylon<\/dd><\/div><div class=\"wf-fact\"><dt>Pressure & Temperature<\/dt><dd>Low pressure; ambient to moderate temperature with moisture allowance.<\/dd><\/div><div class=\"wf-fact\"><dt>Sealing Faces<\/dt><dd>FF and RF with soft gaskets; account for moisture-driven expansion.<\/dd><\/div><div class=\"wf-fact\"><dt>Typical Environment<\/dt><dd>Lightweight, low-pressure and general wear applications.<\/dd><\/div><\/dl><\/div><\/article><article class=\"wf-material-panel\" id=\"m15\" data-group=\"plastic\"><figure class=\"wf-media\"><img decoding=\"async\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/08\/PC-material-flange.webp\" alt=\"Polycarbonate \/ PC flange material\" loading=\"lazy\"><\/figure><div class=\"wf-material-copy\"><h3>Polycarbonate \/ PC<\/h3><p>High impact resistance, dimensional stability and optional transparency.<\/p><dl class=\"wf-facts\"><div class=\"wf-fact\"><dt>Common Grades<\/dt><dd>PC, flame-retardant PC, transparent PC<\/dd><\/div><div class=\"wf-fact\"><dt>Pressure & Temperature<\/dt><dd>Low pressure; ambient to moderate temperature.<\/dd><\/div><div class=\"wf-fact\"><dt>Sealing Faces<\/dt><dd>FF and RF with soft gaskets and low, even bolt load.<\/dd><\/div><div class=\"wf-fact\"><dt>Typical Environment<\/dt><dd>Inspection windows, transparent covers and lightweight structures.<\/dd><\/div><\/dl><\/div><\/article><article class=\"wf-material-panel\" id=\"m16\" data-group=\"plastic\"><figure class=\"wf-media\"><img decoding=\"async\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/08\/pmma-material-flange.webp\" alt=\"PMMA \/ Acrylic flange material\" loading=\"lazy\"><\/figure><div class=\"wf-material-copy\"><h3>PMMA \/ Acrylic<\/h3><p>Optical clarity, weatherability and a clean visual finish.<\/p><dl class=\"wf-facts\"><div class=\"wf-fact\"><dt>Common Grades<\/dt><dd>Cast PMMA, extruded PMMA<\/dd><\/div><div class=\"wf-fact\"><dt>Pressure & Temperature<\/dt><dd>Low pressure and near-ambient temperature.<\/dd><\/div><div class=\"wf-fact\"><dt>Sealing Faces<\/dt><dd>FF and RF with soft, nonabrasive gaskets.<\/dd><\/div><div class=\"wf-fact\"><dt>Typical Environment<\/dt><dd>Viewing windows and non-high-pressure transparent connections.<\/dd><\/div><\/dl><\/div><\/article><\/div><div class=\"wf-faces\" aria-label=\"Common flange sealing faces\"><span class=\"wf-face\">FF \u00b7 Flat Face<\/span><span class=\"wf-face\">RF \u00b7 Raised Face<\/span><span class=\"wf-face\">RTJ \u00b7 Ring Type Joint<\/span><span class=\"wf-face\">Male \/ Female<\/span><span class=\"wf-face\">Tongue & Groove<\/span><\/div><p class=\"wf-disclaimer\">Pressure and temperature suitability depend on material grade, flange size, wall thickness, bolts, gasket and the governing standard. Confirm the final selection against the drawing and operating conditions.<\/p><\/div><\/section>\n<section class=\"wf-section\" id=\"flange-capabilities\"><div class=\"wf-inner\"><p class=\"wf-kicker\">Drawing-Based Capability<\/p><h2>CNC Flange Machining Parameters<\/h2><p class=\"wf-lead\">Key production ranges are reviewed against material, geometry, clamping, sealing-face and inspection requirements.<\/p><div class=\"wf-table-wrap\"><table class=\"wf-table\"><thead><tr><th>Capability<\/th><th>Metal Flanges<\/th><th>Engineering-Plastic Flanges<\/th><\/tr><\/thead><tbody><tr><td>Typical dimensional tolerance<\/td><td>\u00b10.02 mm<\/td><td>\u00b10.05 mm<\/td><\/tr><tr><td>Outside diameter<\/td><td>10\u20131000 mm<\/td><td>10\u2013600 mm<\/td><\/tr><tr><td>Minimum wall thickness<\/td><td>1.0 mm<\/td><td>1.5 mm<\/td><\/tr><tr><td>Minimum bore \/ hole<\/td><td>2.0 mm<\/td><td>2\u20133 mm<\/td><\/tr><tr><td>Typical machined roughness<\/td><td>Ra 0.8\u20133.2 \u03bcm<\/td><td>Ra 1.6\u20133.2 \u03bcm<\/td><\/tr><\/tbody><\/table><\/div><div class=\"wf-spec-notes\"><div class=\"wf-spec-note\"><strong>Bore and OD<\/strong><span>Concentricity and fit confirmed from datums.<\/span><\/div><div class=\"wf-spec-note\"><strong>Bolt Circle<\/strong><span>Hole position and orientation checked to drawing.<\/span><\/div><div class=\"wf-spec-note\"><strong>Sealing Face<\/strong><span>Finish and groove geometry matched to gasket.<\/span><\/div><div class=\"wf-spec-note\"><strong>Runout and Flatness<\/strong><span>Inspection method defined before production.<\/span><\/div><\/div><p class=\"wf-disclaimer\">Final values depend on part size, material condition, geometry and inspection method; critical requirements must be specified on the drawing.<\/p><\/div><\/section>\n<section class=\"wf-section\" id=\"flange-production\"><div class=\"wf-inner\"><p class=\"wf-kicker\">Manufacturing and Inspection<\/p><h2>From Drawing Review to Final Inspection<\/h2><p class=\"wf-lead\">One controlled route covers programming, machining, dimensional verification and shipment protection.<\/p><div class=\"wf-production-grid\"><article class=\"wf-card wf-stage\"><figure class=\"wf-media\"><img decoding=\"async\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/07\/Weldo-Programming-team.webp\" alt=\"CNC programming and drawing review\" loading=\"lazy\"><\/figure><div class=\"wf-stage-body\"><strong>01 \u00b7 Drawing Review<\/strong><p>Confirm datums, standard, sealing face and critical dimensions.<\/p><\/div><\/article><article class=\"wf-card wf-stage\"><figure class=\"wf-media\"><img decoding=\"async\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2025\/09\/turn-mill-compound.webp\" alt=\"Turn mill machining of flange parts\" loading=\"lazy\"><\/figure><div class=\"wf-stage-body\"><strong>02 \u00b7 Controlled Machining<\/strong><p>Turn, mill, drill and groove features in the approved sequence.<\/p><\/div><\/article><article class=\"wf-card wf-stage\"><figure class=\"wf-media\"><img decoding=\"async\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/07\/CMM-testing-1.webp\" alt=\"CMM inspection of precision flange features\" loading=\"lazy\"><\/figure><div class=\"wf-stage-body\"><strong>03 \u00b7 Dimensional Inspection<\/strong><p>Verify bore, OD, bolt pattern, flatness and positional features.<\/p><\/div><\/article><article class=\"wf-card wf-stage\"><figure class=\"wf-media\"><img decoding=\"async\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2025\/11\/\u5fae\u4fe1\u56fe\u7247_20251119205415.webp\" alt=\"Manual dimensional inspection before delivery\" loading=\"lazy\"><\/figure><div class=\"wf-stage-body\"><strong>04 \u00b7 Final Release<\/strong><p>Protect sealing faces and prepare requested records for shipment.<\/p><\/div><\/article><\/div><\/div><\/section>\n<section class=\"wf-section\" id=\"flange-projects\"><div class=\"wf-inner\"><div class=\"wf-section-head\"><div><p class=\"wf-kicker\">Machined Flange Projects<\/p><h2>Custom CNC-Machined Flange Parts<\/h2><p class=\"wf-lead\">Metal and engineering-plastic flange components produced from customer drawings.<\/p><\/div><div class=\"wf-controls\"><button class=\"wf-arrow\" type=\"button\" data-project-prev aria-label=\"Previous flange projects\">\u2190<\/button><button class=\"wf-arrow\" type=\"button\" data-project-next aria-label=\"Next flange projects\">\u2192<\/button><\/div><\/div><div class=\"wf-project-viewport\"><div class=\"wf-project-track\"><figure class=\"wf-card wf-project-card\"><img decoding=\"async\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/07\/Red-Copper-flange.webp\" alt=\"Custom CNC machined flange project 1\" loading=\"lazy\" data-lightbox><\/figure><figure class=\"wf-card wf-project-card\"><img decoding=\"async\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/06\/Brass-Flanged-Threaded-Bushing.webp\" alt=\"Custom CNC machined flange project 2\" loading=\"lazy\" data-lightbox><\/figure><figure class=\"wf-card wf-project-card\"><img decoding=\"async\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/06\/316L-Stainless-Steel-CNC-Flange-Sleeve.webp\" alt=\"Custom CNC machined flange project 3\" loading=\"lazy\" data-lightbox><\/figure><figure class=\"wf-card wf-project-card\"><img decoding=\"async\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/06\/316-stainless-steel-machined-flange-plates.webp\" alt=\"Custom CNC machined flange project 4\" loading=\"lazy\" data-lightbox><\/figure><figure class=\"wf-card wf-project-card\"><img decoding=\"async\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/04\/3.1325-aluminum-Flanged-Bushing-2-1.webp\" alt=\"Custom CNC machined flange project 5\" loading=\"lazy\" data-lightbox><\/figure><figure class=\"wf-card wf-project-card\"><img decoding=\"async\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/08\/6082-t6-aluminum-part-flange-with-hard-anodize.webp\" alt=\"Custom CNC machined flange project 6\" loading=\"lazy\" data-lightbox><\/figure><figure class=\"wf-card wf-project-card\"><img decoding=\"async\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/01\/316-stainless-steel-2.webp\" alt=\"Custom CNC machined flange project 7\" loading=\"lazy\" data-lightbox><\/figure><figure class=\"wf-card wf-project-card\"><img decoding=\"async\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2025\/12\/peek-cnc-machining-parts-1.webp\" alt=\"Custom CNC machined flange project 8\" loading=\"lazy\" data-lightbox><\/figure><figure class=\"wf-card wf-project-card\"><img decoding=\"async\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2025\/12\/6061\u94dd-7.webp\" alt=\"Custom CNC machined flange project 9\" loading=\"lazy\" data-lightbox><\/figure><figure class=\"wf-card wf-project-card\"><img decoding=\"async\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2025\/11\/\u5fae\u4fe1\u56fe\u7247_202510131352311-1.webp\" alt=\"Custom CNC machined flange project 10\" loading=\"lazy\" data-lightbox><\/figure><figure class=\"wf-card wf-project-card\"><img decoding=\"async\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2025\/11\/\u5fae\u4fe1\u56fe\u7247_20251030112405.webp\" alt=\"Custom CNC machined flange project 11\" loading=\"lazy\" data-lightbox><\/figure><figure class=\"wf-card wf-project-card\"><img decoding=\"async\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2025\/11\/\u5fae\u4fe1\u56fe\u7247_20251010162345.webp\" alt=\"Custom CNC machined flange project 12\" loading=\"lazy\" data-lightbox><\/figure><\/div><\/div><\/div><\/section>\n<section class=\"wf-section\" id=\"flange-applications\"><div class=\"wf-inner wf-application-grid\"><figure class=\"wf-media wf-application-media\"><img decoding=\"async\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/08\/application-of-flange-part.webp\" alt=\"Custom flange part used in industrial equipment\" loading=\"lazy\"><\/figure><div><p class=\"wf-kicker\">Application Review<\/p><h2>Specify the Flange Around Its Operating Conditions<\/h2><p class=\"wf-lead\">A useful quotation starts with the interface, sealing and documentation requirements\u2014not only the outside diameter.<\/p><div class=\"wf-industry-list\"><div class=\"wf-industry\">Oil & Gas<\/div><div class=\"wf-industry\">Chemical Processing<\/div><div class=\"wf-industry\">Water Treatment<\/div><div class=\"wf-industry\">Power Equipment<\/div><div class=\"wf-industry\">Marine Systems<\/div><div class=\"wf-industry\">Industrial Machinery<\/div><\/div><ul class=\"wf-quote-list\"><li>2D drawing or 3D CAD file<\/li><li>Material grade and condition<\/li><li>Flange standard and pressure class<\/li><li>Sealing face and gasket requirement<\/li><li>Quantity and delivery target<\/li><li>Inspection and documentation scope<\/li><\/ul><\/div><\/div><\/section>\n<section class=\"wf-section\" id=\"flange-faq\"><div class=\"wf-inner wf-final-grid\"><div class=\"wf-faq-panel\"><p class=\"wf-kicker\">Flange Machining FAQ<\/p><h2>Project Questions<\/h2><div class=\"wf-faq-list\"><details open><summary>What information is required for a custom flange quote?<\/summary><div class=\"wf-answer\">Provide the drawing, material, quantity, flange standard or finished dimensions, sealing face and inspection requirements.<\/div><\/details><details><summary>Can custom bolt patterns and sealing grooves be machined?<\/summary><div class=\"wf-answer\">Yes. Bolt circles, nonstandard hole patterns, RTJ grooves, threads, steps and counterbores are machined from the approved drawing.<\/div><\/details><details><summary>How is flange sealing-face quality controlled?<\/summary><div class=\"wf-answer\">Face geometry, flatness, runout and roughness are checked with methods matched to the drawing and gasket requirement.<\/div><\/details><details><summary>Can an existing flange design be modified?<\/summary><div class=\"wf-answer\">Existing designs can be reviewed for bore changes, bolt-pattern changes, added ports or sealing features when adequate material remains.<\/div><\/details><details><summary>Can inspection reports and material records be supplied?<\/summary><div class=\"wf-answer\">Requested material, heat-treatment and dimensional records should be listed before quotation so they are included in the production route.<\/div><\/details><\/div><\/div><aside class=\"wf-cta-panel\"><span class=\"wf-cta-badge\">Engineering Review and Quote<\/span><h2>Send Your Flange Drawing<\/h2><p>Share the material, quantity, sealing face, tolerances and inspection scope. Weldo will return a practical manufacturing plan with transparent pricing.<\/p><a class=\"wf-btn\" href=\"https:\/\/weldomachining.com\/contact-us\/\">Upload Drawing for a Quote \u2192<\/a><span class=\"wf-confidential\">Project files and commercial information remain confidential.<\/span><\/aside><\/div><\/section><div class=\"wf-lightbox\" role=\"dialog\" aria-modal=\"true\" aria-label=\"Flange project image\"><button class=\"wf-lightbox-close\" type=\"button\" aria-label=\"Close image\">\u00d7<\/button><img decoding=\"async\" src=\"\" alt=\"\"><\/div><\/main><script>\n(function(){\n const script=document.currentScript;\n const root=script?.previousElementSibling;\n if(!root?.classList.contains('weldo-flange-page'))return;\n\n const typeViewport=root.querySelector('.wf-type-viewport');\n function scrollTypes(direction){\n if(!typeViewport)return;\n const card=typeViewport.querySelector('.wf-type-card');\n const step=(card?.getBoundingClientRect().width||typeViewport.clientWidth)+14;\n typeViewport.scrollBy({left:direction*step,behavior:'smooth'});\n }\n root.querySelector('[data-type-prev]')?.addEventListener('click',()=>scrollTypes(-1));\n root.querySelector('[data-type-next]')?.addEventListener('click',()=>scrollTypes(1));\n\n const groupButtons=[...root.querySelectorAll('[data-material-group]')];\n const tabs=[...root.querySelectorAll('.wf-material-tab')];\n const panels=[...root.querySelectorAll('.wf-material-panel')];\n const tabList=root.querySelector('.wf-tab-list');\n let activeGroup='metal';\n function showGroup(group){\n activeGroup=group;\n groupButtons.forEach(b=>b.setAttribute('aria-selected',String(b.dataset.materialGroup===group)));\n tabs.forEach(t=>t.hidden=t.dataset.group!==group);\n const first=tabs.find(t=>t.dataset.group===group);\n if(first)showMaterial(first);\n if(tabList)tabList.scrollLeft=0;\n }\n function showMaterial(tab){\n tabs.forEach(t=>t.setAttribute('aria-selected',String(t===tab)));\n panels.forEach(p=>p.classList.toggle('is-active',p.id===tab.dataset.material));\n if(tabList){\n const target=tab.offsetLeft-(tabList.clientWidth-tab.offsetWidth)\/2;\n tabList.scrollTo({left:Math.max(0,target),behavior:'smooth'});\n }\n }\n groupButtons.forEach(b=>b.addEventListener('click',()=>showGroup(b.dataset.materialGroup)));\n tabs.forEach(t=>t.addEventListener('click',()=>showMaterial(t)));\n function stepMaterial(direction){\n const groupTabs=tabs.filter(t=>t.dataset.group===activeGroup);\n if(!groupTabs.length)return;\n const current=groupTabs.findIndex(t=>t.getAttribute('aria-selected')==='true');\n const next=(Math.max(0,current)+direction+groupTabs.length)%groupTabs.length;\n showMaterial(groupTabs[next]);\n }\n root.querySelector('[data-material-prev]')?.addEventListener('click',()=>stepMaterial(-1));\n root.querySelector('[data-material-next]')?.addEventListener('click',()=>stepMaterial(1));\n showGroup(activeGroup);\n\n const projectTrack=root.querySelector('.wf-project-track');\n let projectIndex=0;\n function projectVisible(){return innerWidth<=760?1:innerWidth<=1100?3:5}\n function updateProjects(){\n if(!projectTrack)return;\n const cards=[...projectTrack.children], visible=projectVisible();\n projectIndex=Math.max(0,Math.min(projectIndex,cards.length-visible));\n const step=(projectTrack.parentElement.clientWidth+14)\/visible;\n projectTrack.style.transform='translateX(-'+(projectIndex*step)+'px)';\n }\n root.querySelector('[data-project-prev]')?.addEventListener('click',()=>{projectIndex--;updateProjects()});\n root.querySelector('[data-project-next]')?.addEventListener('click',()=>{projectIndex++;updateProjects()});\n\n const lightbox=root.querySelector('.wf-lightbox');\n const lightboxImg=lightbox?.querySelector('img');\n root.querySelectorAll('[data-lightbox]').forEach(img=>img.addEventListener('click',()=>{if(lightbox&&lightboxImg){lightboxImg.src=img.src;lightboxImg.alt=img.alt;lightbox.classList.add('is-open')}}));\n function closeLightbox(){lightbox?.classList.remove('is-open')}\n lightbox?.querySelector('button')?.addEventListener('click',closeLightbox);\n lightbox?.addEventListener('click',e=>{if(e.target===lightbox)closeLightbox()});\n document.addEventListener('keydown',e=>{if(e.key==='Escape')closeLightbox()});\n addEventListener('resize',updateProjects);\n updateProjects();\n})();\n<\/script><\/body><\/html>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Custom Flange Parts Machining UI Custom Flange Component Custom Flange Part Machining Drawing-based CNC flange machining for piping, valves, pumps and equipment interfaces. Send the flange geometry, material, sealing face and inspection requirements for an engineering review and transparent quote. Prototype, low-volume and repeat-production flange parts are planned from the approved drawing. Upload Your Flange Drawing \u2192 Flange Structures Flange Types and Design Options Choose the connection structure first, then confirm the standard, pressure class, sealing face and service conditions. \u2190\u2192 Weld Neck Tapered neck for high-pressure, high-temperature or cyclic service. Slip-On Practical welded connection for general piping systems. Blind Solid closure for isolation, testing or future expansion. Socket Weld […]<\/p>\n","protected":false},"author":2,"featured_media":13410,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-13446","page","type-page","status-publish","has-post-thumbnail","hentry"],"_links":{"self":[{"href":"https:\/\/weldomachining.com\/ja\/wp-json\/wp\/v2\/pages\/13446","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/weldomachining.com\/ja\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/weldomachining.com\/ja\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/weldomachining.com\/ja\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/weldomachining.com\/ja\/wp-json\/wp\/v2\/comments?post=13446"}],"version-history":[{"count":25,"href":"https:\/\/weldomachining.com\/ja\/wp-json\/wp\/v2\/pages\/13446\/revisions"}],"predecessor-version":[{"id":14227,"href":"https:\/\/weldomachining.com\/ja\/wp-json\/wp\/v2\/pages\/13446\/revisions\/14227"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/weldomachining.com\/ja\/wp-json\/wp\/v2\/media\/13410"}],"wp:attachment":[{"href":"https:\/\/weldomachining.com\/ja\/wp-json\/wp\/v2\/media?parent=13446"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}