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 […]<\/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\/nl\/wp-json\/wp\/v2\/pages\/13446","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/weldomachining.com\/nl\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/weldomachining.com\/nl\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/weldomachining.com\/nl\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/weldomachining.com\/nl\/wp-json\/wp\/v2\/comments?post=13446"}],"version-history":[{"count":25,"href":"https:\/\/weldomachining.com\/nl\/wp-json\/wp\/v2\/pages\/13446\/revisions"}],"predecessor-version":[{"id":14227,"href":"https:\/\/weldomachining.com\/nl\/wp-json\/wp\/v2\/pages\/13446\/revisions\/14227"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/weldomachining.com\/nl\/wp-json\/wp\/v2\/media\/13410"}],"wp:attachment":[{"href":"https:\/\/weldomachining.com\/nl\/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. 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