Custom Flange Parts Machining | Weldo<\/title>\n <style>\n :root{--fp-ink:#182135;--fp-muted:#626f83;--fp-brand:#272a86;--fp-cyan:#2e9fc3;--fp-line:#dfe5ec;--fp-soft:#f5f7fa;--fp-sky:#eef8fd;--fp-white:#fff;--fp-radius:14px;--fp-wrap:min(1180px,calc(100% - 40px));--fp-shadow:0 18px 50px rgba(24,33,53,.1)}\n *,*::before,*::after{box-sizing:border-box}\n html{scroll-behavior:smooth}\n body{margin:0;background:#fff}\n .flange-page{color:var(--fp-ink);font-family:Arial,\"Helvetica Neue\",Helvetica,sans-serif;font-size:15.5px;font-weight:400;line-height:1.62;-webkit-font-smoothing:antialiased}\n .flange-page img{display:block;max-width:100%}.flange-page a{color:inherit;text-decoration:none}.flange-page button{font:inherit}.flange-page h1,.flange-page h2,.flange-page h3,.flange-page p{margin-top:0}.flange-page h1,.flange-page h2,.flange-page h3{color:var(--fp-ink);font-weight:600;letter-spacing:-.02em}.flange-page h1{margin-bottom:18px;font-size:35px;line-height:1.14}.flange-page h2{margin-bottom:14px;font-size:clamp(27px,3vw,34px);line-height:1.18}.flange-page h3{margin-bottom:9px;font-size:18px;line-height:1.35}.flange-page p{margin-bottom:0;color:var(--fp-muted);font-size:15.5px}.flange-page .fp-inline-link{color:var(--fp-brand);font-weight:600;text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:3px}.flange-page .fp-inline-link:hover{color:#20236f}.fp-wrap{width:var(--fp-wrap);margin-inline:auto}.fp-section{padding:80px 0}.fp-section--soft{background:var(--fp-soft)}.fp-section--sky{background:var(--fp-sky)}.fp-section-head{max-width:780px;margin:0 auto 38px;text-align:center}\n .fp-button{display:inline-flex;min-height:48px;padding:0 24px;align-items:center;justify-content:center;gap:10px;border:1px solid var(--fp-brand);border-radius:8px;background:var(--fp-brand);color:#fff!important;font-size:15px;font-weight:600;transition:.2s ease}.fp-button:hover{transform:translateY(-2px);background:#20236f;box-shadow:0 12px 26px rgba(39,42,134,.2)}.fp-button svg{width:17px;height:17px}\n .fp-slider-head{display:flex;margin-bottom:28px;align-items:end;justify-content:space-between;gap:24px}.fp-slider-head>div:first-child{max-width:760px}.fp-slider-controls{display:flex;flex:0 0 auto;gap:8px}.fp-slider-button{display:grid;width:44px;height:44px;padding:0;place-items:center;border:1px solid #ced7e2;border-radius:50%;background:#fff;color:var(--fp-brand);cursor:pointer;transition:.2s ease}.fp-slider-button:hover{border-color:var(--fp-brand);background:var(--fp-brand);color:#fff}.fp-slider-button svg{width:18px;height:18px}\n\n \/* Hero *\/\n .fp-hero{padding:54px 0 68px;background:linear-gradient(180deg,#fff 0%,#fbfcfe 100%)}.fp-hero-grid{display:grid;grid-template-columns:minmax(0,.92fr) minmax(0,1.08fr);gap:58px;align-items:center}.fp-hero-media{position:relative;min-height:440px;margin:0;overflow:hidden;border-radius:var(--fp-radius);background:#e8edf2;box-shadow:var(--fp-shadow)}.fp-hero-media img{width:100%;height:100%;min-height:440px;object-fit:cover}.fp-hero-media::after{content:\"\";position:absolute;inset:0;background:linear-gradient(180deg,transparent 62%,rgba(24,33,53,.17));pointer-events:none}.fp-hero-copy>p{max-width:620px}.fp-hero-points{display:flex;margin:27px 0 30px;flex-wrap:wrap;gap:12px 24px}.fp-hero-point{display:flex;align-items:center;gap:9px;color:#344157;font-size:15px;font-weight:600;line-height:1.45}.fp-hero-point::before{content:\"\u2713\";display:grid;flex:0 0 25px;width:25px;height:25px;place-items:center;border-radius:50%;background:var(--fp-sky);color:var(--fp-brand);font-size:14px;font-weight:600}\n\n \/* Type slider *\/\n .fp-type-track,.fp-project-track{display:flex;overflow-x:auto;scroll-behavior:smooth;scrollbar-width:none;gap:16px;scroll-snap-type:x mandatory}.fp-type-track::-webkit-scrollbar,.fp-project-track::-webkit-scrollbar,.fp-material-track::-webkit-scrollbar{display:none}.fp-type-card{flex:0 0 calc((100% - 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We review the geometry, material, sealing face, and inspection requirements before production.<\/p>\n <div class=\"fp-hero-points\"><div class=\"fp-hero-point\">Drawing-based machining<\/div><div class=\"fp-hero-point\">Metals and engineering plastics<\/div><div class=\"fp-hero-point\">Prototype to repeat production<\/div><\/div>\n <a class=\"fp-button\" href=\"https:\/\/weldomachining.com\/contact-us\/\">Upload Your Flange Drawing <svg viewBox=\"0 0 20 20\" aria-hidden=\"true\"><path fill=\"currentColor\" d=\"m11.2 4.5 5.5 5.5-5.5 5.5-1.4-1.4 3.1-3.1H3.5V9h9.4L9.8 5.9z\"\/><\/svg><\/a>\n <\/div>\n <\/div><\/section>\n\n <section class=\"fp-section fp-section--soft\" aria-labelledby=\"fp-types-title\"><div class=\"fp-wrap\">\n <div class=\"fp-slider-head\"><div><h2 id=\"fp-types-title\">Flange Types and Design Options<\/h2><p>Choose the connection structure first, then confirm the standard, pressure class, sealing face, and operating conditions.<\/p><\/div><div class=\"fp-slider-controls\"><button class=\"fp-slider-button\" type=\"button\" data-scroll-target=\"fp-type-track\" data-direction=\"-1\" aria-label=\"Previous flange types\"><svg viewBox=\"0 0 20 20\"><path fill=\"currentColor\" d=\"m8.8 4.5-5.5 5.5 5.5 5.5 1.4-1.4L7.1 11h9.4V9H7.1l3.1-3.1z\"\/><\/svg><\/button><button class=\"fp-slider-button\" type=\"button\" data-scroll-target=\"fp-type-track\" data-direction=\"1\" aria-label=\"Next flange types\"><svg viewBox=\"0 0 20 20\"><path fill=\"currentColor\" d=\"m11.2 4.5 5.5 5.5-5.5 5.5-1.4-1.4 3.1-3.1H3.5V9h9.4L9.8 5.9z\"\/><\/svg><\/button><\/div><\/div>\n <div class=\"fp-type-track\" id=\"fp-type-track\">\n <article class=\"fp-type-card\"><div class=\"fp-type-media\"><img decoding=\"async\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/08\/Weld-Neck-Flange.webp\" alt=\"Weld neck flange\"><\/div><div class=\"fp-type-copy\"><h3>Weld Neck<\/h3><p>Tapered neck for high-pressure, high-temperature, or cyclic service.<\/p><\/div><\/article>\n <article class=\"fp-type-card\"><div class=\"fp-type-media\"><img decoding=\"async\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/08\/Slip-On-Flange.webp\" alt=\"Slip-on flange\"><\/div><div class=\"fp-type-copy\"><h3>Slip-On<\/h3><p>Practical welded connection for general piping systems.<\/p><\/div><\/article>\n <article class=\"fp-type-card\"><div class=\"fp-type-media\"><img decoding=\"async\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/08\/blind-flange.webp\" alt=\"Blind flange\"><\/div><div class=\"fp-type-copy\"><h3>Blind<\/h3><p>Solid closure for isolation, testing, or future expansion.<\/p><\/div><\/article>\n <article class=\"fp-type-card\"><div class=\"fp-type-media\"><img decoding=\"async\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/08\/Socket-Weld-Flange.webp\" alt=\"Socket weld flange\"><\/div><div class=\"fp-type-copy\"><h3>Socket Weld<\/h3><p>Compact rigid connection for selected small-bore piping.<\/p><\/div><\/article>\n <article class=\"fp-type-card\"><div class=\"fp-type-media\"><img decoding=\"async\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/08\/Lap-Joint-Flange.webp\" alt=\"Lap joint flange\"><\/div><div class=\"fp-type-copy\"><h3>Lap Joint<\/h3><p>Loose arrangement for alignment and repeated disassembly.<\/p><\/div><\/article>\n <article class=\"fp-type-card\"><div class=\"fp-type-media\"><img decoding=\"async\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/08\/Threaded-Flange.webp\" alt=\"Threaded flange\"><\/div><div class=\"fp-type-copy\"><h3>Threaded<\/h3><p>Non-welded connection where the design and service permit threads.<\/p><\/div><\/article>\n <article class=\"fp-type-card\"><div class=\"fp-type-media\"><img decoding=\"async\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/08\/Orifice-flange.webp\" alt=\"Orifice flange\"><\/div><div class=\"fp-type-copy\"><h3>Orifice<\/h3><p>Pressure taps and plate location machined for flow measurement.<\/p><\/div><\/article>\n <article class=\"fp-type-card\"><div class=\"fp-type-media\"><img decoding=\"async\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/08\/Integral-Flange.webp\" alt=\"Integral flange\"><\/div><div class=\"fp-type-copy\"><h3>Integral<\/h3><p>Rigid flange formed with the pipe or equipment body.<\/p><\/div><\/article>\n <\/div>\n <div class=\"fp-design-grid\"><div class=\"fp-design-item\"><strong>Connection Fit<\/strong><span>OD, bore, thickness, and mating interfaces.<\/span><\/div><div class=\"fp-design-item\"><strong>Bolt Pattern<\/strong><span>Bolt circle, hole count, diameter, and orientation.<\/span><\/div><div class=\"fp-design-item\"><strong>Sealing Features<\/strong><span>FF, RF, RTJ, and drawing-specific grooves.<\/span><\/div><div class=\"fp-design-item\"><strong>Machined Details<\/strong><span>Threads, counterbores, steps, chamfers, and ports.<\/span><\/div><\/div>\n <\/div><\/section>\n\n <section class=\"fp-section\" aria-labelledby=\"fp-materials-title\"><div class=\"fp-wrap\">\n <div class=\"fp-section-head\"><h2 id=\"fp-materials-title\">Flange Materials and Sealing Faces<\/h2><p>Compare material grades by load, temperature, corrosion exposure, sealing face, and service environment.<\/p><\/div>\n <div class=\"fp-material-tools\"><div class=\"fp-material-tabs\" role=\"tablist\"><button class=\"fp-material-tab is-active\" type=\"button\" role=\"tab\" aria-selected=\"true\" data-material-tab=\"metals\">Metal Materials<\/button><button class=\"fp-material-tab\" type=\"button\" role=\"tab\" aria-selected=\"false\" data-material-tab=\"plastics\">Engineering Plastics<\/button><\/div><div class=\"fp-slider-controls\"><button class=\"fp-slider-button\" type=\"button\" data-material-scroll=\"-1\" aria-label=\"Previous materials\"><svg viewBox=\"0 0 20 20\"><path fill=\"currentColor\" d=\"m8.8 4.5-5.5 5.5 5.5 5.5 1.4-1.4L7.1 11h9.4V9H7.1l3.1-3.1z\"\/><\/svg><\/button><button class=\"fp-slider-button\" type=\"button\" data-material-scroll=\"1\" aria-label=\"Next materials\"><svg viewBox=\"0 0 20 20\"><path fill=\"currentColor\" d=\"m11.2 4.5 5.5 5.5-5.5 5.5-1.4-1.4 3.1-3.1H3.5V9h9.4L9.8 5.9z\"\/><\/svg><\/button><\/div><\/div>\n <div class=\"fp-material-panel is-active\" data-material-panel=\"metals\"><div class=\"fp-material-track\">\n <article class=\"fp-material-card\"><div class=\"fp-material-media\"><img decoding=\"async\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/08\/aluminum-material-flange.webp\" alt=\"Aluminum flange material\" loading=\"lazy\"><\/div><div class=\"fp-material-copy\"><h3>Aluminum<\/h3><p>Lightweight, machinable, and resistant to atmospheric corrosion.<\/p><details><summary>View material details<\/summary><dl><div><dt>Common grades<\/dt><dd>6061-T6, 6082-T6, 7075-T6<\/dd><\/div><div><dt>Sealing guidance<\/dt><dd>FF and RF with compatible soft or coated gaskets.<\/dd><\/div><div><dt>Typical uses<\/dt><dd>Lightweight equipment, ventilation, and general industrial piping.<\/dd><\/div><\/dl><\/details><\/div><\/article>\n <article class=\"fp-material-card\"><div class=\"fp-material-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\"><\/div><div class=\"fp-material-copy\"><h3>Stainless Steel<\/h3><p>High strength, cleanability, and broad corrosion resistance.<\/p><details><summary>View material details<\/summary><dl><div><dt>Common grades<\/dt><dd>304, 304L, 316, 316L, 321<\/dd><\/div><div><dt>Sealing guidance<\/dt><dd>FF, RF, and RTJ; face finish must match the gasket and standard.<\/dd><\/div><div><dt>Typical uses<\/dt><dd>Chemical, medical, food, pharmaceutical, and wet-service systems.<\/dd><\/div><\/dl><\/details><\/div><\/article>\n <article class=\"fp-material-card\"><div class=\"fp-material-media\"><img decoding=\"async\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/08\/copper-material-flange.webp\" alt=\"Copper flange material\" loading=\"lazy\"><\/div><div class=\"fp-material-copy\"><h3>Copper<\/h3><p>Excellent thermal and electrical conductivity with good machinability.<\/p><details><summary>View material details<\/summary><dl><div><dt>Common grades<\/dt><dd>C101, C110, C122<\/dd><\/div><div><dt>Sealing guidance<\/dt><dd>FF and RF with gaskets compatible with copper and process fluid.<\/dd><\/div><div><dt>Typical uses<\/dt><dd>Cooling loops, heat exchangers, and temperature-control systems.<\/dd><\/div><\/dl><\/details><\/div><\/article>\n <article class=\"fp-material-card\"><div class=\"fp-material-media\"><img decoding=\"async\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/08\/brass-material-flange.webp\" alt=\"Brass flange material\" loading=\"lazy\"><\/div><div class=\"fp-material-copy\"><h3>Brass<\/h3><p>Machinable, wear-resistant, and dimensionally stable.<\/p><details><summary>View material details<\/summary><dl><div><dt>Common grades<\/dt><dd>C360, C464, C693<\/dd><\/div><div><dt>Sealing guidance<\/dt><dd>FF and RF; confirm gasket and galvanic compatibility.<\/dd><\/div><div><dt>Typical uses<\/dt><dd>Water systems, instruments, valves, and non-aggressive fluids.<\/dd><\/div><\/dl><\/details><\/div><\/article>\n <article class=\"fp-material-card\"><div class=\"fp-material-media\"><img decoding=\"async\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/08\/bronze-material-flange.webp\" alt=\"Bronze flange material\" loading=\"lazy\"><\/div><div class=\"fp-material-copy\"><h3>Bronze<\/h3><p>Wear-resistant with dependable behavior in marine service.<\/p><details><summary>View material details<\/summary><dl><div><dt>Common grades<\/dt><dd>C932, C954, C958<\/dd><\/div><div><dt>Sealing guidance<\/dt><dd>FF, RF, and selected RTJ designs when service-compatible.<\/dd><\/div><div><dt>Typical uses<\/dt><dd>Marine equipment, pumps, valves, and water systems.<\/dd><\/div><\/dl><\/details><\/div><\/article>\n <article class=\"fp-material-card\"><div class=\"fp-material-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\"><\/div><div class=\"fp-material-copy\"><h3>Carbon Steel<\/h3><p>High load capacity, broad availability, and cost efficiency.<\/p><details><summary>View material details<\/summary><dl><div><dt>Common grades<\/dt><dd>A105, A350 LF2, C20, Q235<\/dd><\/div><div><dt>Sealing guidance<\/dt><dd>FF, RF, and RTJ with suitable gasket and corrosion protection.<\/dd><\/div><div><dt>Typical uses<\/dt><dd>Industrial piping, power equipment, and structural connections.<\/dd><\/div><\/dl><\/details><\/div><\/article>\n <article class=\"fp-material-card\"><div class=\"fp-material-media\"><img decoding=\"async\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/08\/titanium-material-flange.webp\" alt=\"Titanium flange material\" loading=\"lazy\"><\/div><div class=\"fp-material-copy\"><h3>Titanium<\/h3><p>High specific strength and resistance to chloride environments.<\/p><details><summary>View material details<\/summary><dl><div><dt>Common grades<\/dt><dd>Grade 2, Grade 5 (Ti-6Al-4V)<\/dd><\/div><div><dt>Sealing guidance<\/dt><dd>FF, RF, and RTJ; protect faces and control galling.<\/dd><\/div><div><dt>Typical uses<\/dt><dd>Aerospace, marine, chemical, and corrosive service.<\/dd><\/div><\/dl><\/details><\/div><\/article>\n <\/div><\/div>\n <div class=\"fp-material-panel\" data-material-panel=\"plastics\" hidden><div class=\"fp-material-track\">\n <article class=\"fp-material-card\"><div class=\"fp-material-media\"><img decoding=\"async\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/08\/abs-material-flange.webp\" alt=\"ABS flange material\" loading=\"lazy\"><\/div><div class=\"fp-material-copy\"><h3>ABS<\/h3><p>Lightweight and impact-resistant for noncritical connections.<\/p><details><summary>View material details<\/summary><dl><div><dt>Common grades<\/dt><dd>General-purpose and flame-retardant ABS<\/dd><\/div><div><dt>Design notes<\/dt><dd>Low pressure; use soft gaskets and avoid excessive bolt preload.<\/dd><\/div><div><dt>Typical uses<\/dt><dd>Non-aggressive media, covers, and light-duty piping.<\/dd><\/div><\/dl><\/details><\/div><\/article>\n <article class=\"fp-material-card\"><div class=\"fp-material-media\"><img decoding=\"async\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/08\/pvc-material-flange.webp\" alt=\"PVC flange material\" loading=\"lazy\"><\/div><div class=\"fp-material-copy\"><h3>PVC<\/h3><p>Low weight with useful resistance to moisture, acids, and alkalis.<\/p><details><summary>View material details<\/summary><dl><div><dt>Common grades<\/dt><dd>PVC-U, PVC-C<\/dd><\/div><div><dt>Design notes<\/dt><dd>Use elastomeric gaskets and controlled bolt load.<\/dd><\/div><div><dt>Typical uses<\/dt><dd>Water treatment, drainage, and ambient chemical piping.<\/dd><\/div><\/dl><\/details><\/div><\/article>\n <article class=\"fp-material-card\"><div class=\"fp-material-media\"><img decoding=\"async\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/08\/pom-material-flange.webp\" alt=\"POM flange material\" loading=\"lazy\"><\/div><div class=\"fp-material-copy\"><h3>POM \/ Delrin<\/h3><p>Low friction, wear resistance, and dimensional stability.<\/p><details><summary>View material details<\/summary><dl><div><dt>Common grades<\/dt><dd>POM-C, POM-H<\/dd><\/div><div><dt>Design notes<\/dt><dd>Use soft gaskets and distribute contact stress evenly.<\/dd><\/div><div><dt>Typical uses<\/dt><dd>Low-friction assemblies and frequently disassembled connections.<\/dd><\/div><\/dl><\/details><\/div><\/article>\n <article class=\"fp-material-card\"><div class=\"fp-material-media\"><img decoding=\"async\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/08\/ptfe-material-flange.webp\" alt=\"PTFE flange material\" loading=\"lazy\"><\/div><div class=\"fp-material-copy\"><h3>PTFE<\/h3><p>Exceptional chemical resistance with very low friction.<\/p><details><summary>View material details<\/summary><dl><div><dt>Common grades<\/dt><dd>Virgin PTFE, glass-filled PTFE, and other filled grades<\/dd><\/div><div><dt>Design notes<\/dt><dd>Allow for creep and use PTFE-compatible sealing systems.<\/dd><\/div><div><dt>Typical uses<\/dt><dd>Strong chemicals, process piping, and corrosion-resistant linings.<\/dd><\/div><\/dl><\/details><\/div><\/article>\n <article class=\"fp-material-card\"><div class=\"fp-material-media\"><img decoding=\"async\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/08\/HDPE-material-flange.webp\" alt=\"HDPE flange material\" loading=\"lazy\"><\/div><div class=\"fp-material-copy\"><h3>HDPE<\/h3><p>Tough and moisture-resistant for many transfer systems.<\/p><details><summary>View material details<\/summary><dl><div><dt>Common grades<\/dt><dd>HDPE, PE100<\/dd><\/div><div><dt>Design notes<\/dt><dd>Allow for creep and thermal expansion; use elastomeric gaskets.<\/dd><\/div><div><dt>Typical uses<\/dt><dd>Water treatment, chemical transfer, and outdoor service.<\/dd><\/div><\/dl><\/details><\/div><\/article>\n <article class=\"fp-material-card\"><div class=\"fp-material-media\"><img decoding=\"async\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/08\/PP-material-flange.webp\" alt=\"PP flange material\" loading=\"lazy\"><\/div><div class=\"fp-material-copy\"><h3>PP<\/h3><p>Low density with resistance to water and many chemicals.<\/p><details><summary>View material details<\/summary><dl><div><dt>Common grades<\/dt><dd>PP-H, PP-R, PP-C<\/dd><\/div><div><dt>Design notes<\/dt><dd>Use soft gaskets and controlled compression.<\/dd><\/div><div><dt>Typical uses<\/dt><dd>Chemical lines, liquid transfer, and humid environments.<\/dd><\/div><\/dl><\/details><\/div><\/article>\n <article class=\"fp-material-card\"><div class=\"fp-material-media\"><img decoding=\"async\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/08\/PEEK-material-flange.webp\" alt=\"PEEK flange material\" loading=\"lazy\"><\/div><div class=\"fp-material-copy\"><h3>PEEK<\/h3><p>High strength, chemical resistance, and elevated-temperature capability.<\/p><details><summary>View material details<\/summary><dl><div><dt>Common grades<\/dt><dd>Virgin, glass-filled, and carbon-filled PEEK<\/dd><\/div><div><dt>Design notes<\/dt><dd>Match gasket, preload, and face geometry to the selected grade.<\/dd><\/div><div><dt>Typical uses<\/dt><dd>Semiconductor, medical, aerospace, and demanding systems.<\/dd><\/div><\/dl><\/details><\/div><\/article>\n <article class=\"fp-material-card\"><div class=\"fp-material-media\"><img decoding=\"async\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/08\/nylon-material-flange.webp\" alt=\"Nylon flange material\" loading=\"lazy\"><\/div><div class=\"fp-material-copy\"><h3>Nylon \/ PA<\/h3><p>Lightweight, wear-resistant, and impact tolerant.<\/p><details><summary>View material details<\/summary><dl><div><dt>Common grades<\/dt><dd>PA6, PA66, reinforced nylon<\/dd><\/div><div><dt>Design notes<\/dt><dd>Account for moisture absorption and use even bolt load.<\/dd><\/div><div><dt>Typical uses<\/dt><dd>Lightweight, low-pressure, and general wear applications.<\/dd><\/div><\/dl><\/details><\/div><\/article>\n <article class=\"fp-material-card\"><div class=\"fp-material-media\"><img decoding=\"async\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/08\/PC-material-flange.webp\" alt=\"Polycarbonate flange material\" loading=\"lazy\"><\/div><div class=\"fp-material-copy\"><h3>Polycarbonate \/ PC<\/h3><p>Impact-resistant, dimensionally stable, and optionally transparent.<\/p><details><summary>View material details<\/summary><dl><div><dt>Common grades<\/dt><dd>PC, flame-retardant PC, transparent PC<\/dd><\/div><div><dt>Design notes<\/dt><dd>Use soft gaskets with low and even bolt load.<\/dd><\/div><div><dt>Typical uses<\/dt><dd>Inspection windows, transparent covers, and light structures.<\/dd><\/div><\/dl><\/details><\/div><\/article>\n <article class=\"fp-material-card\"><div class=\"fp-material-media\"><img decoding=\"async\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/08\/pmma-material-flange.webp\" alt=\"Acrylic flange material\" loading=\"lazy\"><\/div><div class=\"fp-material-copy\"><h3>PMMA \/ Acrylic<\/h3><p>Optically clear with good weatherability and a clean finish.<\/p><details><summary>View material details<\/summary><dl><div><dt>Common grades<\/dt><dd>Cast PMMA, extruded PMMA<\/dd><\/div><div><dt>Design notes<\/dt><dd>Use soft nonabrasive gaskets and controlled preload.<\/dd><\/div><div><dt>Typical uses<\/dt><dd>Viewing windows and non-high-pressure transparent connections.<\/dd><\/div><\/dl><\/details><\/div><\/article>\n <\/div><\/div>\n <div class=\"fp-material-note\"><p>Pressure and temperature suitability depend on grade, flange size, wall thickness, bolts, gasket, service medium, and the governing standard. Final selection must be confirmed against the drawing and operating conditions.<\/p><\/div>\n <\/div><\/section>\n\n <section class=\"fp-section fp-section--soft\" aria-labelledby=\"fp-cap-title\"><div class=\"fp-wrap\">\n <div class=\"fp-section-head\"><h2 id=\"fp-cap-title\">CNC Flange Machining Parameters<\/h2><p>Production ranges are reviewed against material, geometry, clamping, sealing-face, and inspection requirements.<\/p><\/div>\n <div class=\"fp-cap-metrics\"><div class=\"fp-cap-metric\"><span>Metal Flange Tolerance<\/span><strong>Typically \u00b10.02 mm*<\/strong><\/div><div class=\"fp-cap-metric\"><span>Maximum Metal OD<\/span><strong>Up to 1000 mm*<\/strong><\/div><div class=\"fp-cap-metric\"><span>Machined Roughness<\/span><strong>Ra 0.8\u20133.2 \u03bcm*<\/strong><\/div><\/div>\n <div class=\"fp-table-shell\"><div class=\"fp-table-scroll\" role=\"region\" aria-label=\"Flange machining capability table\" tabindex=\"0\"><table class=\"fp-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>\n <div class=\"fp-inspection-grid\"><div class=\"fp-inspection-item\"><strong>Bore & OD<\/strong><span>Concentricity and fit confirmed from datums.<\/span><\/div><div class=\"fp-inspection-item\"><strong>Bolt Circle<\/strong><span>Hole position and orientation checked to drawing.<\/span><\/div><div class=\"fp-inspection-item\"><strong>Sealing Face<\/strong><span>Finish and groove geometry matched to gasket.<\/span><\/div><div class=\"fp-inspection-item\"><strong>Runout & Flatness<\/strong><span>Inspection method defined before production.<\/span><\/div><\/div>\n <p class=\"fp-cap-note\">*Final capability depends on part size, material condition, geometry, clamping, and inspection method. Critical requirements must be specified on the drawing.<\/p>\n <\/div><\/section>\n\n <section class=\"fp-section\" aria-labelledby=\"fp-process-title\"><div class=\"fp-wrap\">\n <div class=\"fp-section-head\"><h2 id=\"fp-process-title\">From Drawing Review to Final Inspection<\/h2><p>Programming, machining, dimensional verification, and shipment protection follow one controlled production route.<\/p><\/div>\n <div class=\"fp-process-grid\">\n <article class=\"fp-process-card\"><img decoding=\"async\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/07\/Weldo-Programming-team.webp\" alt=\"CNC programming and drawing review\" loading=\"lazy\"><div class=\"fp-process-copy\"><span class=\"fp-process-number\">01 \u00b7 Drawing Review<\/span><h3>Confirm the requirements<\/h3><p>Review datums, standard, sealing face, and critical dimensions.<\/p><\/div><\/article>\n <article class=\"fp-process-card\"><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\"><div class=\"fp-process-copy\"><span class=\"fp-process-number\">02 \u00b7 Controlled Machining<\/span><h3>Plan the cutting sequence<\/h3><p>Turn, mill, drill, and groove features in the approved order.<\/p><\/div><\/article>\n <article class=\"fp-process-card\"><img decoding=\"async\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/07\/CMM-testing-1.webp\" alt=\"CMM inspection of flange features\" loading=\"lazy\"><div class=\"fp-process-copy\"><span class=\"fp-process-number\">03 \u00b7 Inspection<\/span><h3>Verify critical geometry<\/h3><p>Check bore, OD, bolt pattern, flatness, and positional features.<\/p><\/div><\/article>\n <article class=\"fp-process-card\"><img decoding=\"async\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2025\/11\/%E5%BE%AE%E4%BF%A1%E5%9B%BE%E7%89%87_20251119205415.webp\" alt=\"Manual dimensional inspection before delivery\" loading=\"lazy\"><div class=\"fp-process-copy\"><span class=\"fp-process-number\">04 \u00b7 Final Release<\/span><h3>Protect sealing surfaces<\/h3><p>Clean the parts and prepare requested records for shipment.<\/p><\/div><\/article>\n <\/div>\n <\/div><\/section>\n\n <section class=\"fp-section fp-section--soft\" aria-labelledby=\"fp-projects-title\"><div class=\"fp-wrap\">\n <div class=\"fp-slider-head\"><div><h2 id=\"fp-projects-title\">Custom CNC-Machined Flange Parts<\/h2><p>Metal and engineering-plastic flange components produced from customer drawings.<\/p><\/div><div class=\"fp-slider-controls\"><button class=\"fp-slider-button\" type=\"button\" data-scroll-target=\"fp-project-track\" data-direction=\"-1\" aria-label=\"Previous flange projects\"><svg viewBox=\"0 0 20 20\"><path fill=\"currentColor\" d=\"m8.8 4.5-5.5 5.5 5.5 5.5 1.4-1.4L7.1 11h9.4V9H7.1l3.1-3.1z\"\/><\/svg><\/button><button class=\"fp-slider-button\" type=\"button\" data-scroll-target=\"fp-project-track\" data-direction=\"1\" aria-label=\"Next flange projects\"><svg viewBox=\"0 0 20 20\"><path fill=\"currentColor\" d=\"m11.2 4.5 5.5 5.5-5.5 5.5-1.4-1.4 3.1-3.1H3.5V9h9.4L9.8 5.9z\"\/><\/svg><\/button><\/div><\/div>\n <div class=\"fp-project-track\" id=\"fp-project-track\">\n <figure class=\"fp-project-card\"><img decoding=\"async\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/07\/Red-Copper-flange.webp\" alt=\"Red copper machined flange\" loading=\"lazy\"><\/figure><figure class=\"fp-project-card\"><img decoding=\"async\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/06\/Brass-Flanged-Threaded-Bushing.webp\" alt=\"Brass flanged threaded bushing\" loading=\"lazy\"><\/figure><figure class=\"fp-project-card\"><img decoding=\"async\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/06\/316L-Stainless-Steel-CNC-Flange-Sleeve.webp\" alt=\"316L stainless steel flange sleeve\" loading=\"lazy\"><\/figure><figure class=\"fp-project-card\"><img decoding=\"async\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/06\/316-stainless-steel-machined-flange-plates.webp\" alt=\"316 stainless steel flange plates\" loading=\"lazy\"><\/figure><figure class=\"fp-project-card\"><img decoding=\"async\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/04\/3.1325-aluminum-Flanged-Bushing-2-1.webp\" alt=\"Aluminum flanged bushing\" loading=\"lazy\"><\/figure><figure class=\"fp-project-card\"><img decoding=\"async\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/08\/6082-t6-aluminum-part-flange-with-hard-anodize.webp\" alt=\"Hard-anodized aluminum flange\" loading=\"lazy\"><\/figure><figure class=\"fp-project-card\"><img decoding=\"async\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/01\/316-stainless-steel-2.webp\" alt=\"316 stainless steel machined flange\" loading=\"lazy\"><\/figure><figure class=\"fp-project-card\"><img decoding=\"async\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2025\/12\/peek-cnc-machining-parts-1.webp\" alt=\"PEEK machined flange components\" loading=\"lazy\"><\/figure><figure class=\"fp-project-card\"><img decoding=\"async\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2025\/12\/6061%E9%93%9D-7.webp\" alt=\"6061 aluminum machined flange\" loading=\"lazy\"><\/figure>\n <\/div>\n <\/div><\/section>\n\n <section class=\"fp-section\" aria-labelledby=\"fp-application-title\"><div class=\"fp-wrap\"><div class=\"fp-application-grid\">\n <div class=\"fp-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\"><\/div>\n <div class=\"fp-application-copy\"><h2 id=\"fp-application-title\">Specify the Flange Around Its Operating Conditions<\/h2><p>A useful quotation starts with the interface, sealing, and documentation requirements\u2014not only the outside diameter.<\/p><div class=\"fp-sector-list\"><span>Oil & Gas<\/span><span>Chemical Processing<\/span><span>Water Treatment<\/span><span>Power Equipment<\/span><span>Marine Systems<\/span><span>Industrial Machinery<\/span><\/div><ul class=\"fp-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>\n <\/div><\/div><\/section>\n\n <section class=\"fp-section fp-section--soft\" aria-labelledby=\"fp-faq-title\"><div class=\"fp-wrap fp-faq-grid\">\n <div><h2 id=\"fp-faq-title\">Flange Machining Questions<\/h2><div class=\"fp-faq-list\">\n <details open><summary>What information is required for a custom flange quote?<\/summary><div class=\"fp-faq-answer\"><p>Provide the drawing, material, quantity, flange standard or finished dimensions, sealing face, and inspection requirements.<\/p><\/div><\/details>\n <details><summary>Can custom bolt patterns and sealing grooves be machined?<\/summary><div class=\"fp-faq-answer\"><p>Yes. Bolt circles, nonstandard hole patterns, RTJ grooves, threads, steps, and counterbores can be machined from an approved drawing.<\/p><\/div><\/details>\n <details><summary>How is sealing-face quality controlled?<\/summary><div class=\"fp-faq-answer\"><p>Face geometry, flatness, runout, and roughness are checked using methods matched to the drawing and gasket requirement.<\/p><\/div><\/details>\n <details><summary>Can an existing flange design be modified?<\/summary><div class=\"fp-faq-answer\"><p>Existing designs can be reviewed for bore, bolt-pattern, port, or sealing-feature changes when adequate material remains.<\/p><\/div><\/details>\n <details><summary>Can inspection reports and material records be supplied?<\/summary><div class=\"fp-faq-answer\"><p>List the requested material, heat-treatment, and dimensional records before quotation so they can be included in the production route.<\/p><\/div><\/details>\n <\/div><\/div>\n <aside class=\"fp-cta-card\"><h2>Send Your Flange Drawing for Review<\/h2><p>Share the material, quantity, sealing face, tolerances, and inspection scope. We will review the manufacturing route and return a clear quotation.<\/p><a class=\"fp-button\" href=\"https:\/\/weldomachining.com\/contact-us\/\">Start Engineering Review <svg viewBox=\"0 0 20 20\" aria-hidden=\"true\"><path fill=\"currentColor\" d=\"m11.2 4.5 5.5 5.5-5.5 5.5-1.4-1.4 3.1-3.1H3.5V9h9.4L9.8 5.9z\"\/><\/svg><\/a><\/aside>\n <\/div><\/section>\n<\/main>\n<script>\n (()=>{\n const root=document.querySelector('.flange-page');\n if(!root)return;\n root.querySelectorAll('[data-scroll-target]').forEach(button=>button.addEventListener('click',()=>{\n const track=root.querySelector('#'+button.dataset.scrollTarget);\n if(track)track.scrollBy({left:Number(button.dataset.direction)*track.clientWidth*.82,behavior:'smooth'});\n }));\n const tabs=[...root.querySelectorAll('[data-material-tab]')];\n const panels=[...root.querySelectorAll('[data-material-panel]')];\n tabs.forEach(tab=>tab.addEventListener('click',()=>{\n tabs.forEach(item=>{const active=item===tab;item.classList.toggle('is-active',active);item.setAttribute('aria-selected',String(active));});\n panels.forEach(panel=>{panel.hidden=panel.dataset.materialPanel!==tab.dataset.materialTab;});\n }));\n root.querySelectorAll('[data-material-scroll]').forEach(button=>button.addEventListener('click',()=>{\n const panel=panels.find(item=>!item.hidden);\n const track=panel&&panel.querySelector('.fp-material-track');\n if(track)track.scrollBy({left:Number(button.dataset.materialScroll)*track.clientWidth*.82,behavior:'smooth'});\n }));\n })();\n<\/script>\n<\/body>\n<\/html>\n\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 | Weldo Custom Flange Parts Machining Drawing-based CNC machining for flange components used in piping, valves, pumps, and equipment interfaces. We review the geometry, material, sealing face, and inspection requirements before production. Drawing-based machiningMetals and engineering plasticsPrototype to repeat production Upload Your Flange Drawing Flange Types and Design Options Choose the […]<\/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\/it\/wp-json\/wp\/v2\/pages\/13446","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/weldomachining.com\/it\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/weldomachining.com\/it\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/weldomachining.com\/it\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/weldomachining.com\/it\/wp-json\/wp\/v2\/comments?post=13446"}],"version-history":[{"count":31,"href":"https:\/\/weldomachining.com\/it\/wp-json\/wp\/v2\/pages\/13446\/revisions"}],"predecessor-version":[{"id":15650,"href":"https:\/\/weldomachining.com\/it\/wp-json\/wp\/v2\/pages\/13446\/revisions\/15650"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/weldomachining.com\/it\/wp-json\/wp\/v2\/media\/13410"}],"wp:attachment":[{"href":"https:\/\/weldomachining.com\/it\/wp-json\/wp\/v2\/media?parent=13446"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}

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16px)\/2)}.fp-design-grid,.fp-inspection-grid,.fp-process-grid{grid-template-columns:1fr 1fr}.fp-project-card{flex-basis:calc((100% - 32px)\/3)}}\n @media(max-width:820px){.fp-section{padding:64px 0}.fp-application-grid,.fp-faq-grid{grid-template-columns:1fr}.fp-application-media,.fp-application-media img{min-height:340px}.fp-cta-card{min-height:0}}\n @media(max-width:620px){:root{--fp-wrap:min(100% - 30px,1180px)}.fp-section{padding:54px 0}.fp-section-head{margin-bottom:28px}.fp-slider-head{align-items:center}.fp-slider-head p{display:none}.fp-hero{padding:28px 0 54px}.fp-hero-grid{gap:30px}.fp-hero-media,.fp-hero-media img{min-height:280px}.fp-hero-points{flex-direction:column;align-items:flex-start;gap:12px}.fp-button{width:100%}.fp-type-card,.fp-material-card{flex-basis:88%}.fp-design-grid,.fp-cap-metrics,.fp-inspection-grid,.fp-process-grid{grid-template-columns:1fr}.fp-material-tools{align-items:flex-start;flex-direction:column}.fp-material-tabs{width:100%}.fp-material-tab{flex:1;padding-inline:10px}.fp-project-card{flex-basis:82%;height:245px}.fp-application-media,.fp-application-media img{min-height:260px}.fp-application-copy{padding:30px 22px}.fp-quote-list{grid-template-columns:1fr}.fp-faq-answer{padding-right:20px}.fp-cta-card{padding:30px 22px}.fp-cta-card .fp-button{width:100%}}\n <\/style>\n<\/head>\n<body>\n<main class=\"flange-page\">\n <section class=\"fp-hero\" aria-labelledby=\"fp-title\"><div class=\"fp-wrap fp-hero-grid\">\n <figure class=\"fp-hero-media\"><img decoding=\"async\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/08\/custom-flange-part.webp\" alt=\"Custom CNC machined flange part\"><\/figure>\n <div class=\"fp-hero-copy\"><h1 id=\"fp-title\">Custom Flange Parts Machining<\/h1><p><a class=\"fp-inline-link\" href=\"https:\/\/weldomachining.com\/cnc-machining\/\">Drawing-based CNC machining<\/a> for flange components used in piping, valves, pumps, and equipment interfaces. We review the geometry, material, sealing face, and inspection requirements before production.<\/p>\n <div class=\"fp-hero-points\"><div class=\"fp-hero-point\">Drawing-based machining<\/div><div class=\"fp-hero-point\">Metals and engineering plastics<\/div><div class=\"fp-hero-point\">Prototype to repeat production<\/div><\/div>\n <a class=\"fp-button\" href=\"https:\/\/weldomachining.com\/contact-us\/\">Upload Your Flange Drawing <svg viewBox=\"0 0 20 20\" aria-hidden=\"true\"><path fill=\"currentColor\" d=\"m11.2 4.5 5.5 5.5-5.5 5.5-1.4-1.4 3.1-3.1H3.5V9h9.4L9.8 5.9z\"\/><\/svg><\/a>\n <\/div>\n <\/div><\/section>\n\n <section class=\"fp-section fp-section--soft\" aria-labelledby=\"fp-types-title\"><div class=\"fp-wrap\">\n <div class=\"fp-slider-head\"><div><h2 id=\"fp-types-title\">Flange Types and Design Options<\/h2><p>Choose the connection structure first, then confirm the standard, pressure class, sealing face, and operating conditions.<\/p><\/div><div class=\"fp-slider-controls\"><button class=\"fp-slider-button\" type=\"button\" data-scroll-target=\"fp-type-track\" data-direction=\"-1\" aria-label=\"Previous flange types\"><svg viewBox=\"0 0 20 20\"><path fill=\"currentColor\" d=\"m8.8 4.5-5.5 5.5 5.5 5.5 1.4-1.4L7.1 11h9.4V9H7.1l3.1-3.1z\"\/><\/svg><\/button><button class=\"fp-slider-button\" type=\"button\" data-scroll-target=\"fp-type-track\" data-direction=\"1\" aria-label=\"Next flange types\"><svg viewBox=\"0 0 20 20\"><path fill=\"currentColor\" d=\"m11.2 4.5 5.5 5.5-5.5 5.5-1.4-1.4 3.1-3.1H3.5V9h9.4L9.8 5.9z\"\/><\/svg><\/button><\/div><\/div>\n <div class=\"fp-type-track\" id=\"fp-type-track\">\n <article class=\"fp-type-card\"><div class=\"fp-type-media\"><img decoding=\"async\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/08\/Weld-Neck-Flange.webp\" alt=\"Weld neck flange\"><\/div><div class=\"fp-type-copy\"><h3>Weld Neck<\/h3><p>Tapered neck for high-pressure, high-temperature, or cyclic service.<\/p><\/div><\/article>\n <article class=\"fp-type-card\"><div class=\"fp-type-media\"><img decoding=\"async\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/08\/Slip-On-Flange.webp\" alt=\"Slip-on flange\"><\/div><div class=\"fp-type-copy\"><h3>Slip-On<\/h3><p>Practical welded connection for general piping systems.<\/p><\/div><\/article>\n <article class=\"fp-type-card\"><div class=\"fp-type-media\"><img decoding=\"async\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/08\/blind-flange.webp\" alt=\"Blind flange\"><\/div><div class=\"fp-type-copy\"><h3>Blind<\/h3><p>Solid closure for isolation, testing, or future expansion.<\/p><\/div><\/article>\n <article class=\"fp-type-card\"><div class=\"fp-type-media\"><img decoding=\"async\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/08\/Socket-Weld-Flange.webp\" alt=\"Socket weld flange\"><\/div><div class=\"fp-type-copy\"><h3>Socket Weld<\/h3><p>Compact rigid connection for selected small-bore piping.<\/p><\/div><\/article>\n <article class=\"fp-type-card\"><div class=\"fp-type-media\"><img decoding=\"async\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/08\/Lap-Joint-Flange.webp\" alt=\"Lap joint flange\"><\/div><div class=\"fp-type-copy\"><h3>Lap Joint<\/h3><p>Loose arrangement for alignment and repeated disassembly.<\/p><\/div><\/article>\n <article class=\"fp-type-card\"><div class=\"fp-type-media\"><img decoding=\"async\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/08\/Threaded-Flange.webp\" alt=\"Threaded flange\"><\/div><div class=\"fp-type-copy\"><h3>Threaded<\/h3><p>Non-welded connection where the design and service permit threads.<\/p><\/div><\/article>\n <article class=\"fp-type-card\"><div class=\"fp-type-media\"><img decoding=\"async\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/08\/Orifice-flange.webp\" alt=\"Orifice flange\"><\/div><div class=\"fp-type-copy\"><h3>Orifice<\/h3><p>Pressure taps and plate location machined for flow measurement.<\/p><\/div><\/article>\n <article class=\"fp-type-card\"><div class=\"fp-type-media\"><img decoding=\"async\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/08\/Integral-Flange.webp\" alt=\"Integral flange\"><\/div><div class=\"fp-type-copy\"><h3>Integral<\/h3><p>Rigid flange formed with the pipe or equipment body.<\/p><\/div><\/article>\n <\/div>\n <div class=\"fp-design-grid\"><div class=\"fp-design-item\"><strong>Connection Fit<\/strong><span>OD, bore, thickness, and mating interfaces.<\/span><\/div><div class=\"fp-design-item\"><strong>Bolt Pattern<\/strong><span>Bolt circle, hole count, diameter, and orientation.<\/span><\/div><div class=\"fp-design-item\"><strong>Sealing Features<\/strong><span>FF, RF, RTJ, and drawing-specific grooves.<\/span><\/div><div class=\"fp-design-item\"><strong>Machined Details<\/strong><span>Threads, counterbores, steps, chamfers, and ports.<\/span><\/div><\/div>\n <\/div><\/section>\n\n <section class=\"fp-section\" aria-labelledby=\"fp-materials-title\"><div class=\"fp-wrap\">\n <div class=\"fp-section-head\"><h2 id=\"fp-materials-title\">Flange Materials and Sealing Faces<\/h2><p>Compare material grades by load, temperature, corrosion exposure, sealing face, and service environment.<\/p><\/div>\n <div class=\"fp-material-tools\"><div class=\"fp-material-tabs\" role=\"tablist\"><button class=\"fp-material-tab is-active\" type=\"button\" role=\"tab\" aria-selected=\"true\" data-material-tab=\"metals\">Metal Materials<\/button><button class=\"fp-material-tab\" type=\"button\" role=\"tab\" aria-selected=\"false\" data-material-tab=\"plastics\">Engineering Plastics<\/button><\/div><div class=\"fp-slider-controls\"><button class=\"fp-slider-button\" type=\"button\" data-material-scroll=\"-1\" aria-label=\"Previous materials\"><svg viewBox=\"0 0 20 20\"><path fill=\"currentColor\" d=\"m8.8 4.5-5.5 5.5 5.5 5.5 1.4-1.4L7.1 11h9.4V9H7.1l3.1-3.1z\"\/><\/svg><\/button><button class=\"fp-slider-button\" type=\"button\" data-material-scroll=\"1\" aria-label=\"Next materials\"><svg viewBox=\"0 0 20 20\"><path fill=\"currentColor\" d=\"m11.2 4.5 5.5 5.5-5.5 5.5-1.4-1.4 3.1-3.1H3.5V9h9.4L9.8 5.9z\"\/><\/svg><\/button><\/div><\/div>\n <div class=\"fp-material-panel is-active\" data-material-panel=\"metals\"><div class=\"fp-material-track\">\n <article class=\"fp-material-card\"><div class=\"fp-material-media\"><img decoding=\"async\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/08\/aluminum-material-flange.webp\" alt=\"Aluminum flange material\" loading=\"lazy\"><\/div><div class=\"fp-material-copy\"><h3>Aluminum<\/h3><p>Lightweight, machinable, and resistant to atmospheric corrosion.<\/p><details><summary>View material details<\/summary><dl><div><dt>Common grades<\/dt><dd>6061-T6, 6082-T6, 7075-T6<\/dd><\/div><div><dt>Sealing guidance<\/dt><dd>FF and RF with compatible soft or coated gaskets.<\/dd><\/div><div><dt>Typical uses<\/dt><dd>Lightweight equipment, ventilation, and general industrial piping.<\/dd><\/div><\/dl><\/details><\/div><\/article>\n <article class=\"fp-material-card\"><div class=\"fp-material-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\"><\/div><div class=\"fp-material-copy\"><h3>Stainless Steel<\/h3><p>High strength, cleanability, and broad corrosion resistance.<\/p><details><summary>View material details<\/summary><dl><div><dt>Common grades<\/dt><dd>304, 304L, 316, 316L, 321<\/dd><\/div><div><dt>Sealing guidance<\/dt><dd>FF, RF, and RTJ; face finish must match the gasket and standard.<\/dd><\/div><div><dt>Typical uses<\/dt><dd>Chemical, medical, food, pharmaceutical, and wet-service systems.<\/dd><\/div><\/dl><\/details><\/div><\/article>\n <article class=\"fp-material-card\"><div class=\"fp-material-media\"><img decoding=\"async\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/08\/copper-material-flange.webp\" alt=\"Copper flange material\" loading=\"lazy\"><\/div><div class=\"fp-material-copy\"><h3>Copper<\/h3><p>Excellent thermal and electrical conductivity with good machinability.<\/p><details><summary>View material details<\/summary><dl><div><dt>Common grades<\/dt><dd>C101, C110, C122<\/dd><\/div><div><dt>Sealing guidance<\/dt><dd>FF and RF with gaskets compatible with copper and process fluid.<\/dd><\/div><div><dt>Typical uses<\/dt><dd>Cooling loops, heat exchangers, and temperature-control systems.<\/dd><\/div><\/dl><\/details><\/div><\/article>\n <article class=\"fp-material-card\"><div class=\"fp-material-media\"><img decoding=\"async\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/08\/brass-material-flange.webp\" alt=\"Brass flange material\" loading=\"lazy\"><\/div><div class=\"fp-material-copy\"><h3>Brass<\/h3><p>Machinable, wear-resistant, and dimensionally stable.<\/p><details><summary>View material details<\/summary><dl><div><dt>Common grades<\/dt><dd>C360, C464, C693<\/dd><\/div><div><dt>Sealing guidance<\/dt><dd>FF and RF; confirm gasket and galvanic compatibility.<\/dd><\/div><div><dt>Typical uses<\/dt><dd>Water systems, instruments, valves, and non-aggressive fluids.<\/dd><\/div><\/dl><\/details><\/div><\/article>\n <article class=\"fp-material-card\"><div class=\"fp-material-media\"><img decoding=\"async\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/08\/bronze-material-flange.webp\" alt=\"Bronze flange material\" loading=\"lazy\"><\/div><div class=\"fp-material-copy\"><h3>Bronze<\/h3><p>Wear-resistant with dependable behavior in marine service.<\/p><details><summary>View material details<\/summary><dl><div><dt>Common grades<\/dt><dd>C932, C954, C958<\/dd><\/div><div><dt>Sealing guidance<\/dt><dd>FF, RF, and selected RTJ designs when service-compatible.<\/dd><\/div><div><dt>Typical uses<\/dt><dd>Marine equipment, pumps, valves, and water systems.<\/dd><\/div><\/dl><\/details><\/div><\/article>\n <article class=\"fp-material-card\"><div class=\"fp-material-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\"><\/div><div class=\"fp-material-copy\"><h3>Carbon Steel<\/h3><p>High load capacity, broad availability, and cost efficiency.<\/p><details><summary>View material details<\/summary><dl><div><dt>Common grades<\/dt><dd>A105, A350 LF2, C20, Q235<\/dd><\/div><div><dt>Sealing guidance<\/dt><dd>FF, RF, and RTJ with suitable gasket and corrosion protection.<\/dd><\/div><div><dt>Typical uses<\/dt><dd>Industrial piping, power equipment, and structural connections.<\/dd><\/div><\/dl><\/details><\/div><\/article>\n <article class=\"fp-material-card\"><div class=\"fp-material-media\"><img decoding=\"async\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/08\/titanium-material-flange.webp\" alt=\"Titanium flange material\" loading=\"lazy\"><\/div><div class=\"fp-material-copy\"><h3>Titanium<\/h3><p>High specific strength and resistance to chloride environments.<\/p><details><summary>View material details<\/summary><dl><div><dt>Common grades<\/dt><dd>Grade 2, Grade 5 (Ti-6Al-4V)<\/dd><\/div><div><dt>Sealing guidance<\/dt><dd>FF, RF, and RTJ; protect faces and control galling.<\/dd><\/div><div><dt>Typical uses<\/dt><dd>Aerospace, marine, chemical, and corrosive service.<\/dd><\/div><\/dl><\/details><\/div><\/article>\n <\/div><\/div>\n <div class=\"fp-material-panel\" data-material-panel=\"plastics\" hidden><div class=\"fp-material-track\">\n <article class=\"fp-material-card\"><div class=\"fp-material-media\"><img decoding=\"async\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/08\/abs-material-flange.webp\" alt=\"ABS flange material\" loading=\"lazy\"><\/div><div class=\"fp-material-copy\"><h3>ABS<\/h3><p>Lightweight and impact-resistant for noncritical connections.<\/p><details><summary>View material details<\/summary><dl><div><dt>Common grades<\/dt><dd>General-purpose and flame-retardant ABS<\/dd><\/div><div><dt>Design notes<\/dt><dd>Low pressure; use soft gaskets and avoid excessive bolt preload.<\/dd><\/div><div><dt>Typical uses<\/dt><dd>Non-aggressive media, covers, and light-duty piping.<\/dd><\/div><\/dl><\/details><\/div><\/article>\n <article class=\"fp-material-card\"><div class=\"fp-material-media\"><img decoding=\"async\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/08\/pvc-material-flange.webp\" alt=\"PVC flange material\" loading=\"lazy\"><\/div><div class=\"fp-material-copy\"><h3>PVC<\/h3><p>Low weight with useful resistance to moisture, acids, and alkalis.<\/p><details><summary>View material details<\/summary><dl><div><dt>Common grades<\/dt><dd>PVC-U, PVC-C<\/dd><\/div><div><dt>Design notes<\/dt><dd>Use elastomeric gaskets and controlled bolt load.<\/dd><\/div><div><dt>Typical uses<\/dt><dd>Water treatment, drainage, and ambient chemical piping.<\/dd><\/div><\/dl><\/details><\/div><\/article>\n <article class=\"fp-material-card\"><div class=\"fp-material-media\"><img decoding=\"async\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/08\/pom-material-flange.webp\" alt=\"POM flange material\" loading=\"lazy\"><\/div><div class=\"fp-material-copy\"><h3>POM \/ Delrin<\/h3><p>Low friction, wear resistance, and dimensional stability.<\/p><details><summary>View material details<\/summary><dl><div><dt>Common grades<\/dt><dd>POM-C, POM-H<\/dd><\/div><div><dt>Design notes<\/dt><dd>Use soft gaskets and distribute contact stress evenly.<\/dd><\/div><div><dt>Typical uses<\/dt><dd>Low-friction assemblies and frequently disassembled connections.<\/dd><\/div><\/dl><\/details><\/div><\/article>\n <article class=\"fp-material-card\"><div class=\"fp-material-media\"><img decoding=\"async\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/08\/ptfe-material-flange.webp\" alt=\"PTFE flange material\" loading=\"lazy\"><\/div><div class=\"fp-material-copy\"><h3>PTFE<\/h3><p>Exceptional chemical resistance with very low friction.<\/p><details><summary>View material details<\/summary><dl><div><dt>Common grades<\/dt><dd>Virgin PTFE, glass-filled PTFE, and other filled grades<\/dd><\/div><div><dt>Design notes<\/dt><dd>Allow for creep and use PTFE-compatible sealing systems.<\/dd><\/div><div><dt>Typical uses<\/dt><dd>Strong chemicals, process piping, and corrosion-resistant linings.<\/dd><\/div><\/dl><\/details><\/div><\/article>\n <article class=\"fp-material-card\"><div class=\"fp-material-media\"><img decoding=\"async\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/08\/HDPE-material-flange.webp\" alt=\"HDPE flange material\" loading=\"lazy\"><\/div><div class=\"fp-material-copy\"><h3>HDPE<\/h3><p>Tough and moisture-resistant for many transfer systems.<\/p><details><summary>View material details<\/summary><dl><div><dt>Common grades<\/dt><dd>HDPE, PE100<\/dd><\/div><div><dt>Design notes<\/dt><dd>Allow for creep and thermal expansion; use elastomeric gaskets.<\/dd><\/div><div><dt>Typical uses<\/dt><dd>Water treatment, chemical transfer, and outdoor service.<\/dd><\/div><\/dl><\/details><\/div><\/article>\n <article class=\"fp-material-card\"><div class=\"fp-material-media\"><img decoding=\"async\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/08\/PP-material-flange.webp\" alt=\"PP flange material\" loading=\"lazy\"><\/div><div class=\"fp-material-copy\"><h3>PP<\/h3><p>Low density with resistance to water and many chemicals.<\/p><details><summary>View material details<\/summary><dl><div><dt>Common grades<\/dt><dd>PP-H, PP-R, PP-C<\/dd><\/div><div><dt>Design notes<\/dt><dd>Use soft gaskets and controlled compression.<\/dd><\/div><div><dt>Typical uses<\/dt><dd>Chemical lines, liquid transfer, and humid environments.<\/dd><\/div><\/dl><\/details><\/div><\/article>\n <article class=\"fp-material-card\"><div class=\"fp-material-media\"><img decoding=\"async\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/08\/PEEK-material-flange.webp\" alt=\"PEEK flange material\" loading=\"lazy\"><\/div><div class=\"fp-material-copy\"><h3>PEEK<\/h3><p>High strength, chemical resistance, and elevated-temperature capability.<\/p><details><summary>View material details<\/summary><dl><div><dt>Common grades<\/dt><dd>Virgin, glass-filled, and carbon-filled PEEK<\/dd><\/div><div><dt>Design notes<\/dt><dd>Match gasket, preload, and face geometry to the selected grade.<\/dd><\/div><div><dt>Typical uses<\/dt><dd>Semiconductor, medical, aerospace, and demanding systems.<\/dd><\/div><\/dl><\/details><\/div><\/article>\n <article class=\"fp-material-card\"><div class=\"fp-material-media\"><img decoding=\"async\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/08\/nylon-material-flange.webp\" alt=\"Nylon flange material\" loading=\"lazy\"><\/div><div class=\"fp-material-copy\"><h3>Nylon \/ PA<\/h3><p>Lightweight, wear-resistant, and impact tolerant.<\/p><details><summary>View material details<\/summary><dl><div><dt>Common grades<\/dt><dd>PA6, PA66, reinforced nylon<\/dd><\/div><div><dt>Design notes<\/dt><dd>Account for moisture absorption and use even bolt load.<\/dd><\/div><div><dt>Typical uses<\/dt><dd>Lightweight, low-pressure, and general wear applications.<\/dd><\/div><\/dl><\/details><\/div><\/article>\n <article class=\"fp-material-card\"><div class=\"fp-material-media\"><img decoding=\"async\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/08\/PC-material-flange.webp\" alt=\"Polycarbonate flange material\" loading=\"lazy\"><\/div><div class=\"fp-material-copy\"><h3>Polycarbonate \/ PC<\/h3><p>Impact-resistant, dimensionally stable, and optionally transparent.<\/p><details><summary>View material details<\/summary><dl><div><dt>Common grades<\/dt><dd>PC, flame-retardant PC, transparent PC<\/dd><\/div><div><dt>Design notes<\/dt><dd>Use soft gaskets with low and even bolt load.<\/dd><\/div><div><dt>Typical uses<\/dt><dd>Inspection windows, transparent covers, and light structures.<\/dd><\/div><\/dl><\/details><\/div><\/article>\n <article class=\"fp-material-card\"><div class=\"fp-material-media\"><img decoding=\"async\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/08\/pmma-material-flange.webp\" alt=\"Acrylic flange material\" loading=\"lazy\"><\/div><div class=\"fp-material-copy\"><h3>PMMA \/ Acrylic<\/h3><p>Optically clear with good weatherability and a clean finish.<\/p><details><summary>View material details<\/summary><dl><div><dt>Common grades<\/dt><dd>Cast PMMA, extruded PMMA<\/dd><\/div><div><dt>Design notes<\/dt><dd>Use soft nonabrasive gaskets and controlled preload.<\/dd><\/div><div><dt>Typical uses<\/dt><dd>Viewing windows and non-high-pressure transparent connections.<\/dd><\/div><\/dl><\/details><\/div><\/article>\n <\/div><\/div>\n <div class=\"fp-material-note\"><p>Pressure and temperature suitability depend on grade, flange size, wall thickness, bolts, gasket, service medium, and the governing standard. Final selection must be confirmed against the drawing and operating conditions.<\/p><\/div>\n <\/div><\/section>\n\n <section class=\"fp-section fp-section--soft\" aria-labelledby=\"fp-cap-title\"><div class=\"fp-wrap\">\n <div class=\"fp-section-head\"><h2 id=\"fp-cap-title\">CNC Flange Machining Parameters<\/h2><p>Production ranges are reviewed against material, geometry, clamping, sealing-face, and inspection requirements.<\/p><\/div>\n <div class=\"fp-cap-metrics\"><div class=\"fp-cap-metric\"><span>Metal Flange Tolerance<\/span><strong>Typically \u00b10.02 mm*<\/strong><\/div><div class=\"fp-cap-metric\"><span>Maximum Metal OD<\/span><strong>Up to 1000 mm*<\/strong><\/div><div class=\"fp-cap-metric\"><span>Machined Roughness<\/span><strong>Ra 0.8\u20133.2 \u03bcm*<\/strong><\/div><\/div>\n <div class=\"fp-table-shell\"><div class=\"fp-table-scroll\" role=\"region\" aria-label=\"Flange machining capability table\" tabindex=\"0\"><table class=\"fp-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>\n <div class=\"fp-inspection-grid\"><div class=\"fp-inspection-item\"><strong>Bore & OD<\/strong><span>Concentricity and fit confirmed from datums.<\/span><\/div><div class=\"fp-inspection-item\"><strong>Bolt Circle<\/strong><span>Hole position and orientation checked to drawing.<\/span><\/div><div class=\"fp-inspection-item\"><strong>Sealing Face<\/strong><span>Finish and groove geometry matched to gasket.<\/span><\/div><div class=\"fp-inspection-item\"><strong>Runout & Flatness<\/strong><span>Inspection method defined before production.<\/span><\/div><\/div>\n <p class=\"fp-cap-note\">*Final capability depends on part size, material condition, geometry, clamping, and inspection method. Critical requirements must be specified on the drawing.<\/p>\n <\/div><\/section>\n\n <section class=\"fp-section\" aria-labelledby=\"fp-process-title\"><div class=\"fp-wrap\">\n <div class=\"fp-section-head\"><h2 id=\"fp-process-title\">From Drawing Review to Final Inspection<\/h2><p>Programming, machining, dimensional verification, and shipment protection follow one controlled production route.<\/p><\/div>\n <div class=\"fp-process-grid\">\n <article class=\"fp-process-card\"><img decoding=\"async\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/07\/Weldo-Programming-team.webp\" alt=\"CNC programming and drawing review\" loading=\"lazy\"><div class=\"fp-process-copy\"><span class=\"fp-process-number\">01 \u00b7 Drawing Review<\/span><h3>Confirm the requirements<\/h3><p>Review datums, standard, sealing face, and critical dimensions.<\/p><\/div><\/article>\n <article class=\"fp-process-card\"><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\"><div class=\"fp-process-copy\"><span class=\"fp-process-number\">02 \u00b7 Controlled Machining<\/span><h3>Plan the cutting sequence<\/h3><p>Turn, mill, drill, and groove features in the approved order.<\/p><\/div><\/article>\n <article class=\"fp-process-card\"><img decoding=\"async\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/07\/CMM-testing-1.webp\" alt=\"CMM inspection of flange features\" loading=\"lazy\"><div class=\"fp-process-copy\"><span class=\"fp-process-number\">03 \u00b7 Inspection<\/span><h3>Verify critical geometry<\/h3><p>Check bore, OD, bolt pattern, flatness, and positional features.<\/p><\/div><\/article>\n <article class=\"fp-process-card\"><img decoding=\"async\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2025\/11\/%E5%BE%AE%E4%BF%A1%E5%9B%BE%E7%89%87_20251119205415.webp\" alt=\"Manual dimensional inspection before delivery\" loading=\"lazy\"><div class=\"fp-process-copy\"><span class=\"fp-process-number\">04 \u00b7 Final Release<\/span><h3>Protect sealing surfaces<\/h3><p>Clean the parts and prepare requested records for shipment.<\/p><\/div><\/article>\n <\/div>\n <\/div><\/section>\n\n <section class=\"fp-section fp-section--soft\" aria-labelledby=\"fp-projects-title\"><div class=\"fp-wrap\">\n <div class=\"fp-slider-head\"><div><h2 id=\"fp-projects-title\">Custom CNC-Machined Flange Parts<\/h2><p>Metal and engineering-plastic flange components produced from customer drawings.<\/p><\/div><div class=\"fp-slider-controls\"><button class=\"fp-slider-button\" type=\"button\" data-scroll-target=\"fp-project-track\" data-direction=\"-1\" aria-label=\"Previous flange projects\"><svg viewBox=\"0 0 20 20\"><path fill=\"currentColor\" d=\"m8.8 4.5-5.5 5.5 5.5 5.5 1.4-1.4L7.1 11h9.4V9H7.1l3.1-3.1z\"\/><\/svg><\/button><button class=\"fp-slider-button\" type=\"button\" data-scroll-target=\"fp-project-track\" data-direction=\"1\" aria-label=\"Next flange projects\"><svg viewBox=\"0 0 20 20\"><path fill=\"currentColor\" d=\"m11.2 4.5 5.5 5.5-5.5 5.5-1.4-1.4 3.1-3.1H3.5V9h9.4L9.8 5.9z\"\/><\/svg><\/button><\/div><\/div>\n <div class=\"fp-project-track\" id=\"fp-project-track\">\n <figure class=\"fp-project-card\"><img decoding=\"async\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/07\/Red-Copper-flange.webp\" alt=\"Red copper machined flange\" loading=\"lazy\"><\/figure><figure class=\"fp-project-card\"><img decoding=\"async\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/06\/Brass-Flanged-Threaded-Bushing.webp\" alt=\"Brass flanged threaded bushing\" loading=\"lazy\"><\/figure><figure class=\"fp-project-card\"><img decoding=\"async\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/06\/316L-Stainless-Steel-CNC-Flange-Sleeve.webp\" alt=\"316L stainless steel flange sleeve\" loading=\"lazy\"><\/figure><figure class=\"fp-project-card\"><img decoding=\"async\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/06\/316-stainless-steel-machined-flange-plates.webp\" alt=\"316 stainless steel flange plates\" loading=\"lazy\"><\/figure><figure class=\"fp-project-card\"><img decoding=\"async\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/04\/3.1325-aluminum-Flanged-Bushing-2-1.webp\" alt=\"Aluminum flanged bushing\" loading=\"lazy\"><\/figure><figure class=\"fp-project-card\"><img decoding=\"async\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/08\/6082-t6-aluminum-part-flange-with-hard-anodize.webp\" alt=\"Hard-anodized aluminum flange\" loading=\"lazy\"><\/figure><figure class=\"fp-project-card\"><img decoding=\"async\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/01\/316-stainless-steel-2.webp\" alt=\"316 stainless steel machined flange\" loading=\"lazy\"><\/figure><figure class=\"fp-project-card\"><img decoding=\"async\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2025\/12\/peek-cnc-machining-parts-1.webp\" alt=\"PEEK machined flange components\" loading=\"lazy\"><\/figure><figure class=\"fp-project-card\"><img decoding=\"async\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2025\/12\/6061%E9%93%9D-7.webp\" alt=\"6061 aluminum machined flange\" loading=\"lazy\"><\/figure>\n <\/div>\n <\/div><\/section>\n\n <section class=\"fp-section\" aria-labelledby=\"fp-application-title\"><div class=\"fp-wrap\"><div class=\"fp-application-grid\">\n <div class=\"fp-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\"><\/div>\n <div class=\"fp-application-copy\"><h2 id=\"fp-application-title\">Specify the Flange Around Its Operating Conditions<\/h2><p>A useful quotation starts with the interface, sealing, and documentation requirements\u2014not only the outside diameter.<\/p><div class=\"fp-sector-list\"><span>Oil & Gas<\/span><span>Chemical Processing<\/span><span>Water Treatment<\/span><span>Power Equipment<\/span><span>Marine Systems<\/span><span>Industrial Machinery<\/span><\/div><ul class=\"fp-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>\n <\/div><\/div><\/section>\n\n <section class=\"fp-section fp-section--soft\" aria-labelledby=\"fp-faq-title\"><div class=\"fp-wrap fp-faq-grid\">\n <div><h2 id=\"fp-faq-title\">Flange Machining Questions<\/h2><div class=\"fp-faq-list\">\n <details open><summary>What information is required for a custom flange quote?<\/summary><div class=\"fp-faq-answer\"><p>Provide the drawing, material, quantity, flange standard or finished dimensions, sealing face, and inspection requirements.<\/p><\/div><\/details>\n <details><summary>Can custom bolt patterns and sealing grooves be machined?<\/summary><div class=\"fp-faq-answer\"><p>Yes. Bolt circles, nonstandard hole patterns, RTJ grooves, threads, steps, and counterbores can be machined from an approved drawing.<\/p><\/div><\/details>\n <details><summary>How is sealing-face quality controlled?<\/summary><div class=\"fp-faq-answer\"><p>Face geometry, flatness, runout, and roughness are checked using methods matched to the drawing and gasket requirement.<\/p><\/div><\/details>\n <details><summary>Can an existing flange design be modified?<\/summary><div class=\"fp-faq-answer\"><p>Existing designs can be reviewed for bore, bolt-pattern, port, or sealing-feature changes when adequate material remains.<\/p><\/div><\/details>\n <details><summary>Can inspection reports and material records be supplied?<\/summary><div class=\"fp-faq-answer\"><p>List the requested material, heat-treatment, and dimensional records before quotation so they can be included in the production route.<\/p><\/div><\/details>\n <\/div><\/div>\n <aside class=\"fp-cta-card\"><h2>Send Your Flange Drawing for Review<\/h2><p>Share the material, quantity, sealing face, tolerances, and inspection scope. We will review the manufacturing route and return a clear quotation.<\/p><a class=\"fp-button\" href=\"https:\/\/weldomachining.com\/contact-us\/\">Start Engineering Review <svg viewBox=\"0 0 20 20\" aria-hidden=\"true\"><path fill=\"currentColor\" d=\"m11.2 4.5 5.5 5.5-5.5 5.5-1.4-1.4 3.1-3.1H3.5V9h9.4L9.8 5.9z\"\/><\/svg><\/a><\/aside>\n <\/div><\/section>\n<\/main>\n<script>\n (()=>{\n const root=document.querySelector('.flange-page');\n if(!root)return;\n root.querySelectorAll('[data-scroll-target]').forEach(button=>button.addEventListener('click',()=>{\n const track=root.querySelector('#'+button.dataset.scrollTarget);\n if(track)track.scrollBy({left:Number(button.dataset.direction)*track.clientWidth*.82,behavior:'smooth'});\n }));\n const tabs=[...root.querySelectorAll('[data-material-tab]')];\n const panels=[...root.querySelectorAll('[data-material-panel]')];\n tabs.forEach(tab=>tab.addEventListener('click',()=>{\n tabs.forEach(item=>{const active=item===tab;item.classList.toggle('is-active',active);item.setAttribute('aria-selected',String(active));});\n panels.forEach(panel=>{panel.hidden=panel.dataset.materialPanel!==tab.dataset.materialTab;});\n }));\n root.querySelectorAll('[data-material-scroll]').forEach(button=>button.addEventListener('click',()=>{\n const panel=panels.find(item=>!item.hidden);\n const track=panel&&panel.querySelector('.fp-material-track');\n if(track)track.scrollBy({left:Number(button.dataset.materialScroll)*track.clientWidth*.82,behavior:'smooth'});\n }));\n })();\n<\/script>\n<\/body>\n<\/html>\n\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 | Weldo Custom Flange Parts Machining Drawing-based CNC machining for flange components used in piping, valves, pumps, and equipment interfaces. We review the geometry, material, sealing face, and inspection requirements before production. Drawing-based machiningMetals and engineering plasticsPrototype to repeat production Upload Your Flange Drawing Flange Types and Design Options Choose the […]<\/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\/it\/wp-json\/wp\/v2\/pages\/13446","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/weldomachining.com\/it\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/weldomachining.com\/it\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/weldomachining.com\/it\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/weldomachining.com\/it\/wp-json\/wp\/v2\/comments?post=13446"}],"version-history":[{"count":31,"href":"https:\/\/weldomachining.com\/it\/wp-json\/wp\/v2\/pages\/13446\/revisions"}],"predecessor-version":[{"id":15650,"href":"https:\/\/weldomachining.com\/it\/wp-json\/wp\/v2\/pages\/13446\/revisions\/15650"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/weldomachining.com\/it\/wp-json\/wp\/v2\/media\/13410"}],"wp:attachment":[{"href":"https:\/\/weldomachining.com\/it\/wp-json\/wp\/v2\/media?parent=13446"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}