{"id":4071,"date":"2025-11-12T06:27:24","date_gmt":"2025-11-12T06:27:24","guid":{"rendered":"https:\/\/weldomachining.com\/?page_id=4071"},"modified":"2026-11-09T06:37:26","modified_gmt":"2026-11-09T06:37:26","slug":"cnc-steel-machining","status":"publish","type":"page","link":"https:\/\/weldomachining.com\/ko\/cnc-steel-machining\/","title":{"rendered":"CNC \uac15 \uac00\uacf5"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-page\" data-elementor-id=\"4071\" class=\"elementor elementor-4071\" data-elementor-post-type=\"page\">\n\t\t\t\t<div class=\"elementor-element elementor-element-a6a8a61 e-con-full e-flex e-con e-parent\" data-id=\"a6a8a61\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-57cf68c elementor-widget elementor-widget-html\" data-id=\"57cf68c\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"html.default\">\n\t\t\t\t\t<!doctype html>\n<html lang=\"en\">\n<head>\n  <meta charset=\"utf-8\">\n  <meta name=\"viewport\" content=\"width=device-width, initial-scale=1\">\n  <meta name=\"description\" content=\"Custom steel CNC machining for carbon, alloy, tool and stainless steel parts. Drawing-based grade selection, machining, heat treatment, finishing and inspection.\">\n  <title>Steel CNC Machining Services | Weldo<\/title>\n  <style>\n    body{margin:0;background:#fff}\n    #weldo-steel-machining-page{\n      --sm-ink:#182135;--sm-muted:#626f83;--sm-brand:#292c91;--sm-dark:#202370;\n      --sm-cyan:#2f9fc2;--sm-line:#dfe5ec;--sm-soft:#f5f7fa;--sm-sky:#edf8fd;\n      --sm-wrap:min(1180px,calc(100% - 40px));\n      color:var(--sm-ink);background:#fff;font-family:Arial,\"Helvetica Neue\",Helvetica,sans-serif!important;\n      font-size:15.5px;font-weight:400;line-height:1.62;-webkit-font-smoothing:antialiased;\n    }\n    #weldo-steel-machining-page *,#weldo-steel-machining-page *::before,#weldo-steel-machining-page *::after{box-sizing:border-box}\n    #weldo-steel-machining-page [hidden]{display:none!important}\n    #weldo-steel-machining-page :where(h1,h2,h3,p,figure,ul,dl){margin:0}\n    #weldo-steel-machining-page 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button{margin:0;cursor:pointer;font:inherit;text-transform:none;letter-spacing:0;-webkit-appearance:none;appearance:none}\n    #weldo-steel-machining-page :where(a,button,summary){-webkit-tap-highlight-color:transparent}\n    #weldo-steel-machining-page .sm-wrap{width:var(--sm-wrap);margin-inline:auto}\n    #weldo-steel-machining-page .sm-section{padding:76px 0}\n    #weldo-steel-machining-page .sm-soft{background:var(--sm-soft)}\n    #weldo-steel-machining-page .sm-heading{max-width:800px;margin:0 auto 35px;text-align:center}\n    #weldo-steel-machining-page .sm-button,#weldo-steel-machining-page .sm-button:visited{display:inline-flex;min-height:48px;padding:12px 23px;align-items:center;justify-content:center;gap:12px;border:1px solid var(--sm-brand)!important;border-radius:8px;background:var(--sm-brand)!important;color:#fff!important;-webkit-text-fill-color:#fff!important;font-size:15px;font-weight:600;line-height:1.4;text-align:center;transition:background .2s ease,box-shadow .2s ease}\n    #weldo-steel-machining-page .sm-button:hover,#weldo-steel-machining-page .sm-button:focus,#weldo-steel-machining-page .sm-button:active{border-color:var(--sm-dark)!important;background:var(--sm-dark)!important;color:#fff!important;-webkit-text-fill-color:#fff!important;box-shadow:0 10px 24px rgba(41,44,145,.16)}\n    #weldo-steel-machining-page .sm-button svg{flex:0 0 18px;width:18px;height:18px;fill:currentColor}\n    #weldo-steel-machining-page .sm-link,#weldo-steel-machining-page .sm-link:visited{color:var(--sm-brand)!important;font-size:15px;font-weight:600;text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:3px}\n    #weldo-steel-machining-page .sm-link:hover,#weldo-steel-machining-page .sm-link:focus,#weldo-steel-machining-page .sm-link:active{color:var(--sm-dark)!important}\n    #weldo-steel-machining-page :where(a,button,summary,[tabindex=\"0\"]):focus-visible{outline:2px solid var(--sm-cyan)!important;outline-offset:4px!important}\n\n    \/* 01 \u2014 Hero *\/\n    #weldo-steel-machining-page .sm-hero{padding:54px 0 66px;background:linear-gradient(180deg,#fff,#fbfcfe)}\n    #weldo-steel-machining-page .sm-hero-grid{display:grid;grid-template-columns:minmax(0,.83fr) minmax(0,1.17fr);gap:56px;align-items:center}\n    #weldo-steel-machining-page .sm-hero-media{display:flex;min-width:0;min-height:375px;padding:20px;align-items:center;justify-content:center;overflow:hidden;border:1px solid var(--sm-line);border-radius:14px;background:#fff;box-shadow:0 18px 48px rgba(24,33,53,.07)}\n    #weldo-steel-machining-page .sm-hero-media img{width:100%;height:335px;object-fit:contain}\n    #weldo-steel-machining-page .sm-hero-copy>p{max-width:630px}\n    #weldo-steel-machining-page .sm-points{display:flex;margin:25px 0 29px;flex-wrap:wrap;gap:12px 22px;padding:0;list-style:none}\n    #weldo-steel-machining-page .sm-points li{display:flex;align-items:center;gap:9px;color:#344157;font-size:15px;font-weight:600;line-height:1.4}\n    #weldo-steel-machining-page .sm-points li::before{content:\"\u2713\";display:grid;flex:0 0 25px;width:25px;height:25px;place-items:center;border-radius:50%;background:var(--sm-sky);color:var(--sm-brand);font-size:15px;font-weight:600}\n\n    \/* 02 \u2014 Reference properties *\/\n    #weldo-steel-machining-page .sm-properties-grid{display:grid;grid-template-columns:minmax(0,1.3fr) minmax(0,.7fr);gap:45px;align-items:center}\n    #weldo-steel-machining-page .sm-property-values{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;margin-top:25px}\n    #weldo-steel-machining-page .sm-property{padding:18px 16px;border:1px solid #d9e4ec;border-radius:11px;background:#fff}\n    #weldo-steel-machining-page .sm-property dt{color:#56657b;font-size:15px;line-height:1.4}\n    #weldo-steel-machining-page .sm-property dd{margin:7px 0 0;color:var(--sm-brand);font-size:20px;font-weight:600;line-height:1.35}\n    #weldo-steel-machining-page .sm-property dd span{display:block;margin-top:3px;color:#617188;font-size:15px;font-weight:400}\n    #weldo-steel-machining-page .sm-properties-media{display:flex;max-width:350px;min-width:0;padding:17px;align-items:center;justify-content:center;border:1px solid var(--sm-line);border-radius:14px;background:#fff}\n    #weldo-steel-machining-page .sm-properties-media img{width:100%;max-height:310px;object-fit:contain}\n    #weldo-steel-machining-page .sm-properties-note{margin-top:17px;font-size:15px!important}\n\n    \/* 03 \u2014 Stainless steel grades *\/\n    #weldo-steel-machining-page .sm-tabs{display:flex;width:max-content;max-width:100%;gap:5px;padding:5px;margin:0 auto 28px;border:1px solid var(--sm-line);border-radius:10px;background:#fff}\n    #weldo-steel-machining-page .sm-tabs .sm-tab{min-height:44px;padding:10px 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<\/style>\n<\/head>\n<body>\n<main id=\"weldo-steel-machining-page\">\n\n  <!-- 01 \u2014 Hero -->\n  <section class=\"sm-hero\" aria-labelledby=\"sm-title\"><div class=\"sm-wrap sm-hero-grid\">\n    <figure class=\"sm-hero-media\"><img fetchpriority=\"high\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2025\/10\/cnc-steel-parts-12.webp\" width=\"1000\" height=\"750\" alt=\"Custom CNC machined steel parts\" fetchpriority=\"high\" decoding=\"async\"><\/figure>\n    <div class=\"sm-hero-copy\"><h1 id=\"sm-title\">Steel CNC Machining Services<\/h1><p>Custom steel parts made to drawing for shafts, gears, tooling, and load-bearing components. We review the grade, material condition, machining route, heat treatment, and finish to suit the part\u2019s function and final dimensions.<\/p><ul class=\"sm-points\"><li>Carbon, Alloy &amp; Tool Steel<\/li><li>Prototype to Production<\/li><li>Heat Treatment &amp; Finishing<\/li><\/ul><a class=\"sm-button\" href=\"https:\/\/weldomachining.com\/contact-us\/\">Upload Your Steel Part Drawing <svg viewBox=\"0 0 20 20\" aria-hidden=\"true\"><path 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><\/div>\n  <\/div><\/section>\n\n  <!-- 02 \u2014 Material property references -->\n  <section class=\"sm-section sm-soft\" aria-labelledby=\"sm-properties-title\"><div class=\"sm-wrap sm-properties-grid\">\n    <div><h2 id=\"sm-properties-title\">Steel Properties Depend on Grade and Condition<\/h2><p>Carbon content, alloying, product form, and heat treatment affect strength, toughness, hardness, and machining behavior. These broad references cover selected grades and conditions.<\/p>\n      <dl class=\"sm-property-values\">\n        <div class=\"sm-property\"><dt>Density<\/dt><dd>7.75\u20137.90<span>g\/cm\u00b3<\/span><\/dd><\/div>\n        <div class=\"sm-property\"><dt>Tensile Strength<\/dt><dd>370\u20132,000<span>MPa<\/span><\/dd><\/div>\n        <div class=\"sm-property\"><dt>Yield Strength<\/dt><dd>200\u20131,800<span>MPa<\/span><\/dd><\/div>\n        <div class=\"sm-property\"><dt>Elongation<\/dt><dd>5\u201335<span>%<\/span><\/dd><\/div>\n        <div class=\"sm-property\"><dt>Thermal Conductivity<\/dt><dd>20\u201360<span>W\/(m\u00b7K)<\/span><\/dd><\/div>\n        <div class=\"sm-property\"><dt>Selected Hardened Tool Steels<\/dt><dd>60\u201365<span>HRC, grade- and treatment-dependent<\/span><\/dd><\/div>\n      <\/dl><p class=\"sm-properties-note\">Ranges describe different materials and conditions, not one steel specification. Confirm the required properties and hardness test method from the governing material standard and supplier records.<\/p>\n    <\/div>\n    <figure class=\"sm-properties-media\"><img loading=\"lazy\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/06\/a992-steel.webp\" width=\"700\" height=\"466\" alt=\"Machined structural steel component\" loading=\"lazy\" decoding=\"async\"><\/figure>\n  <\/div><\/section>\n\n  <!-- 03 \u2014 Steel family selection -->\n  <section class=\"sm-section\" aria-labelledby=\"sm-families-title\"><div class=\"sm-wrap\">\n    <div class=\"sm-heading\"><h2 id=\"sm-families-title\">Choose the Steel for the Part<\/h2><p>Compare machining behavior, strength, hardenability, wear, and corrosion exposure before selecting the material.<\/p><\/div>\n    <div class=\"sm-tabs\" role=\"tablist\" aria-label=\"Steel material families\">\n      <button class=\"sm-tab\" id=\"sm-tab-carbon\" role=\"tab\" type=\"button\" aria-selected=\"true\" aria-controls=\"sm-panel-carbon\" tabindex=\"0\">Carbon Steel<\/button>\n      <button class=\"sm-tab\" id=\"sm-tab-alloy\" role=\"tab\" type=\"button\" aria-selected=\"false\" aria-controls=\"sm-panel-alloy\" tabindex=\"-1\">Alloy Steel<\/button>\n      <button class=\"sm-tab\" id=\"sm-tab-tool\" role=\"tab\" type=\"button\" aria-selected=\"false\" aria-controls=\"sm-panel-tool\" tabindex=\"-1\">Tool Steel<\/button>\n      <button class=\"sm-tab\" id=\"sm-tab-stainless\" role=\"tab\" type=\"button\" aria-selected=\"false\" aria-controls=\"sm-panel-stainless\" tabindex=\"-1\">Stainless Steel<\/button>\n    <\/div>\n    <div class=\"sm-grade-panel\" id=\"sm-panel-carbon\" role=\"tabpanel\" aria-labelledby=\"sm-tab-carbon\" tabindex=\"0\"><div class=\"sm-family-grid\">\n      <div class=\"sm-grade-copy\"><h3>Carbon Steel<\/h3><p>Economical structural and engineering grades for general machine parts. Carbon content and supplied condition influence cutting behavior, strength, and heat-treatment response.<\/p><ul class=\"sm-grade-list\" aria-label=\"Carbon steel grade examples\"><li>ASTM A36<\/li><li>AISI 1018<\/li><li>AISI 1045<\/li><li>C45<\/li><li>AISI 1215<\/li><\/ul><\/div>\n      <div class=\"sm-grade-copy\"><p>1018 is widely used for general components. Free-machining 1215 improves chip control for repetitive turning. Medium-carbon 1045 and C45 are options where higher strength or local hardening is required.<\/p><details><summary>Applications, treatment &amp; finishing<\/summary><dl>\n        <div><dt>Typical parts<\/dt><dd>Brackets, bases, shafts, pins, spacers, flanges, and general machine components.<\/dd><\/div>\n        <div><dt>Heat-treatment considerations<\/dt><dd>1018 may be carburized. Suitable medium-carbon grades can be quenched and tempered or induction-hardened. A36 is a structural specification and should not be treated as a controlled hardening grade.<\/dd><\/div>\n        <div><dt>Surface protection<\/dt><dd>Black oxide with an appropriate sealer, zinc or nickel plating, phosphating, and protective paint, selected for the application and final fits.<\/dd><\/div>\n        <div><dt>Machining notes<\/dt><dd>Plan chip control, burr removal, clamping, and the condition of welded or cold-drawn stock. Free-machining grades may have limitations for welding or demanding service conditions.<\/dd><\/div>\n      <\/dl><\/details><\/div>\n    <\/div><\/div>\n    <div class=\"sm-grade-panel\" id=\"sm-panel-alloy\" role=\"tabpanel\" aria-labelledby=\"sm-tab-alloy\" tabindex=\"0\" hidden><div class=\"sm-family-grid\">\n      <div class=\"sm-grade-copy\"><h3>Alloy Steel<\/h3><p>Options for higher hardenability, strength, toughness, and demanding mechanical loads. Final performance depends on composition, section size, and treatment.<\/p><ul class=\"sm-grade-list\" aria-label=\"Alloy steel grade examples\"><li>SAE 4140<\/li><li>42CrMo4<\/li><li>SAE 4340<\/li><li>34CrNiMo6<\/li><li>SAE 8620<\/li><\/ul><\/div>\n      <div class=\"sm-grade-copy\"><p>Machinability changes with hardness and supplied condition. Annealed stock supports material removal before treatment; prehardened stock requires tooling and workholding matched to its actual hardness.<\/p><details><summary>Applications, treatment &amp; finishing<\/summary><dl>\n        <div><dt>Typical parts<\/dt><dd>Gears, drive shafts, couplings, hubs, spindles, and heavily loaded fasteners.<\/dd><\/div>\n        <div><dt>Heat-treatment considerations<\/dt><dd>4140 and 4340 are commonly quenched and tempered. 8620 is commonly carburized for a hard case and tougher core. Define final hardness, case depth where relevant, and machining allowance.<\/dd><\/div>\n        <div><dt>Surface and wear treatments<\/dt><dd>Grade-appropriate nitriding or induction hardening, black oxide, zinc or nickel plating, and phosphating. Confirm compatibility with the required core condition.<\/dd><\/div>\n        <div><dt>Material specification<\/dt><dd>SAE and EN designations listed here are separate material choices. Similar grades are not automatically interchangeable; confirm chemistry, product standard, condition, and certification before substitution.<\/dd><\/div>\n      <\/dl><\/details><\/div>\n    <\/div><\/div>\n    <div class=\"sm-grade-panel\" id=\"sm-panel-tool\" role=\"tabpanel\" aria-labelledby=\"sm-tab-tool\" tabindex=\"0\" hidden><div class=\"sm-family-grid\">\n      <div class=\"sm-grade-copy\"><h3>Tool Steel<\/h3><p>Grade-specific solutions for wear resistance, hardness, impact loading, or hot-work service. Selection balances toughness, hardness, and dimensional stability.<\/p><ul class=\"sm-grade-list\" aria-label=\"Tool steel grade examples\"><li>AISI A2<\/li><li>AISI D2<\/li><li>AISI H13<\/li><li>AISI O1<\/li><li>1.2363<\/li><li>1.2379<\/li><li>1.2344<\/li><li>1.2510<\/li><\/ul><\/div>\n      <div class=\"sm-grade-copy\"><p>Tool steels are often rough-machined in the annealed condition. After hardening and tempering, critical geometry may require grinding, hard machining, or EDM with appropriate surface-integrity controls.<\/p><details><summary>Applications, treatment &amp; finishing<\/summary><dl>\n        <div><dt>Typical parts<\/dt><dd>Punches, dies, mold inserts, cutting tools, gauges, fixtures, and wear components.<\/dd><\/div>\n        <div><dt>Heat-treatment considerations<\/dt><dd>Use a grade-specific hardening and tempering route. Plan stress relief where appropriate, account for distortion, and retain finishing allowance on critical features.<\/dd><\/div>\n        <div><dt>Finishing options<\/dt><dd>Precision grinding and polishing, or compatible nitriding, PVD coatings, and black oxide. Coating temperature must suit the material\u2019s heat-treatment condition.<\/dd><\/div>\n        <div><dt>Inspection notes<\/dt><dd>Specify final hardness, datums, form tolerances, surface condition, and whether acceptance follows heat treatment and finishing.<\/dd><\/div>\n      <\/dl><\/details><\/div>\n    <\/div><\/div>\n    <div class=\"sm-grade-panel\" id=\"sm-panel-stainless\" role=\"tabpanel\" aria-labelledby=\"sm-tab-stainless\" tabindex=\"0\" hidden><div class=\"sm-family-grid\">\n      <div class=\"sm-grade-copy\"><h3>Stainless Steel<\/h3><p>Corrosion-resistant grades with different machining, strength, and cleaning characteristics. The environment and required material condition guide selection.<\/p><ul class=\"sm-grade-list\" aria-label=\"Stainless steel grade examples\"><li>303<\/li><li>304<\/li><li>316 \/ 316L<\/li><li>17-4 PH<\/li><\/ul><\/div>\n      <div class=\"sm-grade-copy\"><p>303 prioritizes machinability, with corrosion and welding tradeoffs. 304 and 316L require effective control of work hardening and heat. 17-4 PH provides higher strength in a specified aging condition.<\/p><details><summary>Applications, treatment &amp; finishing<\/summary><dl>\n        <div><dt>Typical parts<\/dt><dd>Valves, fittings, housings, food-equipment components, and medical or laboratory parts made to the required specification.<\/dd><\/div>\n        <div><dt>Heat-treatment considerations<\/dt><dd>Austenitic 303, 304, and 316L are not hardened by conventional quenching and tempering. 17-4 PH is strengthened by precipitation hardening; define the required final condition.<\/dd><\/div>\n        <div><dt>Finishing options<\/dt><dd>Grade-appropriate passivation, electropolishing, bead blasting, brushing, and polishing. Surface texture and corrosion acceptance should be defined separately.<\/dd><\/div>\n        <div><dt>Material guide<\/dt><dd><a class=\"sm-link\" href=\"https:\/\/weldomachining.com\/cnc-machining-stainless-steel\/\">Explore stainless steel machining \u2192<\/a><\/dd><\/div>\n      <\/dl><\/details><\/div>\n    <\/div><\/div>\n    <div class=\"sm-note\"><p>Specify the governing material standard, exact grade, product form, supplied condition, final hardness, and required certification. Grade examples do not establish automatic equivalence between standards.<\/p><\/div>\n  <\/div><\/section>\n\n  <!-- 04 \u2014 Steel machining capability -->\n  <section class=\"sm-section sm-soft\" aria-labelledby=\"sm-cap-title\"><div class=\"sm-wrap\">\n    <div class=\"sm-heading\"><h2 id=\"sm-cap-title\">Drawing-Based Steel Machining Capabilities<\/h2><p>Confirm the route from the part\u2019s dimensions, material condition, critical features, and final inspection requirements.<\/p><\/div>\n    <div class=\"sm-cap-grid\">\n      <article class=\"sm-cap-box\"><div class=\"sm-box-heading\"><h3>Machining Reference Parameters<\/h3><\/div><table class=\"sm-table\" aria-label=\"Steel machining capability references\"><tbody>\n        <tr><th scope=\"row\">Part-envelope reference<\/th><td><strong>Up to 3000 \u00d7 1600 \u00d7 1000 mm*<\/strong><span>Subject to machine selection, workholding, stock, and tool access.<\/span><\/td><\/tr>\n        <tr><th scope=\"row\">Turning references<\/th><td><strong>\u00d81\u2013200 mm \/ length up to 1000 mm*<\/strong><span>Independent range references; diameter, unsupported length, rigidity, and support must be reviewed together.<\/span><\/td><\/tr>\n        <tr><th scope=\"row\">Thin-wall reference<\/th><td><strong>From 0.5 mm*<\/strong><span>Depends on wall height, span, material condition, clamping, and finishing.<\/span><\/td><\/tr>\n        <tr><th scope=\"row\">Dimensional references<\/th><td><strong>General \u00b10.05 mm \/ selected features down to \u00b10.005 mm*<\/strong><span>Quotation references only. Drawing tolerances, process, temperature, and measurement conditions require agreement.<\/span><\/td><\/tr>\n        <tr><th scope=\"row\">Surface roughness<\/th><td><strong>Ra 0.2\u20133.2 \u00b5m*<\/strong><span>Process-dependent. Finer values may require grinding or other finishing beyond milling or turning.<\/span><\/td><\/tr>\n        <tr><th scope=\"row\">Hardened workpiece reference<\/th><td><strong>Up to 60 HRC*<\/strong><span>Grade- and feature-specific review determines hard machining, grinding, or EDM suitability.<\/span><\/td><\/tr>\n      <\/tbody><\/table><\/article>\n      <article class=\"sm-cap-box\"><div class=\"sm-box-heading\"><h3>Engineering Controls for Steel Parts<\/h3><\/div><div class=\"sm-controls\">\n        <div class=\"sm-control\"><span class=\"sm-icon\" aria-hidden=\"true\"><svg viewBox=\"0 0 24 24\"><path d=\"M5 3h14v18H5zM8 7h8m-8 4h8m-8 4h4\"\/><path d=\"m14 17 2 2 4-4\"\/><\/svg><\/span><div><h3>Grade and Material Condition<\/h3><p>Review alloy, stock form, hardness, residual stress, and any welds before setting the machining route.<\/p><\/div><\/div>\n        <div class=\"sm-control\"><span class=\"sm-icon\" aria-hidden=\"true\"><svg viewBox=\"0 0 24 24\"><path d=\"M3 7h18M3 17h18M7 7v10m10-10v10M5 10h4m6 4h4\"\/><rect x=\"9\" y=\"9\" width=\"6\" height=\"6\" rx=\"1\"\/><\/svg><\/span><div><h3>Stable Cutting and Workholding<\/h3><p>Match tool grade, engagement, speed, coolant, and chip evacuation to hardness and feature access.<\/p><\/div><\/div>\n        <div class=\"sm-control\"><span class=\"sm-icon\" aria-hidden=\"true\"><svg viewBox=\"0 0 24 24\"><path d=\"M12 3v11m-3-2V5a3 3 0 0 1 6 0v7a5 5 0 1 1-6 0\"\/><path d=\"M12 16v2m7-12h2m-2 4h2\"\/><\/svg><\/span><div><h3>Heat-Treatment Allowance<\/h3><p>Plan roughing, stress relief where appropriate, hardening, and final sizing to manage material movement.<\/p><\/div><\/div>\n        <div class=\"sm-control\"><span class=\"sm-icon\" aria-hidden=\"true\"><svg viewBox=\"0 0 24 24\"><path d=\"M4 3v15h16M8 3v6m8-6v6M4 6h16M10 18v3m7-3v3\"\/><path d=\"M9 12h8m-4-3v6\"\/><\/svg><\/span><div><h3>Finished-Part Acceptance<\/h3><p>Define datums, fits, hardness, surface condition, and inspection after treatment or coating where required.<\/p><\/div><\/div>\n      <\/div><\/article>\n    <\/div><p class=\"sm-cap-note\">*Planning references confirmed against the drawing. Maximum size, minimum diameter, thin walls, hardness, tight tolerance, and roughness are reviewed separately and should not be assumed achievable together.<\/p>\n  <\/div><\/section>\n\n  <!-- 05 \u2014 Surface protection -->\n  <section class=\"sm-section\" aria-labelledby=\"sm-finish-title\"><div class=\"sm-wrap\">\n    <div class=\"sm-heading\"><h2 id=\"sm-finish-title\">Surface Finishes for Steel Parts<\/h2><p>Choose a complete finish system for corrosion exposure, wear, appearance, coating thickness, and assembly fit.<\/p><\/div>\n    <div class=\"sm-finish-grid\">\n      <article class=\"sm-finish-card\"><figure class=\"sm-finish-media\"><img loading=\"lazy\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/08\/black-oxide-part.webp\" width=\"750\" height=\"600\" alt=\"Black oxide finished steel part\" loading=\"lazy\" decoding=\"async\"><\/figure><div class=\"sm-finish-copy\"><h3>Black Oxide<\/h3><p>A thin black conversion finish, commonly sealed with oil or wax for limited corrosion protection. Specify the required after-treatment and storage conditions.<\/p><\/div><\/article>\n      <article class=\"sm-finish-card\"><figure class=\"sm-finish-media\"><img loading=\"lazy\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2025\/12\/electroplate-finish.webp\" width=\"800\" height=\"545\" alt=\"Zinc-plated steel part\" loading=\"lazy\" decoding=\"async\"><\/figure><div class=\"sm-finish-copy\"><h3>Zinc Plating<\/h3><p>Sacrificial corrosion protection with specified thickness, passivate, and masking. Define any required embrittlement-relief process for high-strength parts.<\/p><\/div><\/article>\n      <article class=\"sm-finish-card\"><figure class=\"sm-finish-media\"><img loading=\"lazy\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/07\/1045-Steel-Knurled-Roller-Shaft.webp\" width=\"700\" height=\"700\" alt=\"Nickel-plated steel component\" loading=\"lazy\" decoding=\"async\"><\/figure><div class=\"sm-finish-copy\"><h3>Nickel Plating<\/h3><p>A barrier coating for appearance, wear, or corrosion performance. Specify electrolytic or electroless nickel, thickness, and the final fit requirements.<\/p><\/div><\/article>\n      <article class=\"sm-finish-card\"><figure class=\"sm-finish-media\"><img loading=\"lazy\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/08\/carbon-steel-stepped-shaft.webp\" width=\"700\" height=\"700\" alt=\"Phosphate-treated steel shaft\" loading=\"lazy\" decoding=\"async\"><\/figure><div class=\"sm-finish-copy\"><h3>Phosphating<\/h3><p>A conversion coating used for oil retention or paint preparation. Corrosion performance depends on the complete oil, sealer, or paint system.<\/p><\/div><\/article>\n    <\/div><p class=\"sm-finish-link\"><a class=\"sm-link\" href=\"https:\/\/weldomachining.com\/surface-finish\/\">Explore more surface finishing options \u2192<\/a><\/p>\n    <div class=\"sm-note\"><p>Allow for coating buildup on bores, threads, and fits. Hardening, carburizing, nitriding, plating, and conversion coatings serve different purposes; define the process sequence and finished acceptance condition.<\/p><\/div>\n  <\/div><\/section>\n\n  <!-- 06 \u2014 Production and inspection resources -->\n  <section class=\"sm-section sm-soft\" aria-labelledby=\"sm-equipment-title\"><div class=\"sm-wrap\">\n    <div class=\"sm-gallery-head\"><div><h2 id=\"sm-equipment-title\">Machining and Inspection Resources<\/h2><p>Machining, grinding, EDM, and dimensional inspection support the agreed production route and acceptance requirements for steel parts.<\/p><\/div><div class=\"sm-slider-controls\"><button class=\"sm-slider-button\" type=\"button\" data-sm-track=\"sm-equipment\" data-sm-direction=\"-1\" aria-controls=\"sm-equipment\" aria-label=\"Previous equipment images\"><svg viewBox=\"0 0 20 20\" aria-hidden=\"true\"><path 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=\"sm-slider-button\" type=\"button\" data-sm-track=\"sm-equipment\" data-sm-direction=\"1\" aria-controls=\"sm-equipment\" aria-label=\"Next equipment images\"><svg viewBox=\"0 0 20 20\" aria-hidden=\"true\"><path 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=\"sm-gallery-track\" id=\"sm-equipment\" role=\"region\" aria-labelledby=\"sm-equipment-title\" tabindex=\"0\">\n      <figure class=\"sm-gallery-image\"><img loading=\"lazy\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2025\/12\/%E5%BE%AE%E4%BF%A1%E5%9B%BE%E7%89%87_20251010152324.webp\" width=\"700\" height=\"525\" alt=\"Steel machining production equipment\" loading=\"lazy\" decoding=\"async\"><\/figure>\n      <figure class=\"sm-gallery-image\"><img loading=\"lazy\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2025\/10\/5-axis-cnc-machining-stainless-steel-car-engine-part-8.webp\" width=\"700\" height=\"525\" alt=\"Five-axis CNC machining setup\" loading=\"lazy\" decoding=\"async\"><\/figure>\n      <figure class=\"sm-gallery-image\"><img loading=\"lazy\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2025\/12\/%E5%BE%AE%E4%BF%A1%E5%9B%BE%E7%89%87_20251211140343.webp\" width=\"800\" height=\"600\" alt=\"Weldo production and measurement equipment\" loading=\"lazy\" decoding=\"async\"><\/figure>\n      <figure class=\"sm-gallery-image\"><img loading=\"lazy\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2025\/09\/%E5%BE%AE%E4%BF%A1%E5%9B%BE%E7%89%87_20250917192120-1.webp\" width=\"800\" height=\"600\" alt=\"CNC production equipment\" loading=\"lazy\" decoding=\"async\"><\/figure>\n      <figure class=\"sm-gallery-image\"><img loading=\"lazy\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/07\/CMM-testing.webp\" width=\"800\" height=\"800\" alt=\"CMM dimensional inspection\" loading=\"lazy\" decoding=\"async\"><\/figure>\n      <figure class=\"sm-gallery-image\"><img loading=\"lazy\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2025\/11\/%E5%BE%AE%E4%BF%A1%E5%9B%BE%E7%89%87_20251119205415.webp\" width=\"750\" height=\"563\" alt=\"Precision measurement equipment\" loading=\"lazy\" decoding=\"async\"><\/figure>\n      <figure class=\"sm-gallery-image\"><img loading=\"lazy\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/02\/cnc-grinding-5.webp\" width=\"750\" height=\"563\" alt=\"Precision grinding equipment\" loading=\"lazy\" decoding=\"async\"><\/figure>\n      <figure class=\"sm-gallery-image\"><img loading=\"lazy\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2025\/09\/EDM-e1787125475766.webp\" width=\"1072\" height=\"786\" alt=\"Electrical discharge machining equipment\" loading=\"lazy\" decoding=\"async\"><\/figure>\n    <\/div>\n  <\/div><\/section>\n\n  <!-- 07 \u2014 Weldo steel machining projects -->\n  <section class=\"sm-section\" aria-labelledby=\"sm-projects-title\"><div class=\"sm-wrap\">\n    <div class=\"sm-gallery-head\"><div><h2 id=\"sm-projects-title\">Weldo Steel Machining Projects<\/h2><p>Examples of steel machining projects completed by Weldo, including welded components, shafts, plates, and other custom parts with different material and finishing requirements.<\/p><\/div><div class=\"sm-slider-controls\"><button class=\"sm-slider-button\" type=\"button\" data-sm-track=\"sm-projects\" data-sm-direction=\"-1\" aria-controls=\"sm-projects\" aria-label=\"Previous project images\"><svg viewBox=\"0 0 20 20\" aria-hidden=\"true\"><path 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=\"sm-slider-button\" type=\"button\" data-sm-track=\"sm-projects\" data-sm-direction=\"1\" aria-controls=\"sm-projects\" aria-label=\"Next project images\"><svg viewBox=\"0 0 20 20\" aria-hidden=\"true\"><path 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=\"sm-gallery-track\" id=\"sm-projects\" role=\"region\" aria-labelledby=\"sm-projects-title\" tabindex=\"0\">\n      <figure class=\"sm-gallery-image\"><img loading=\"lazy\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/07\/aisi-1020-steel-welding-CNC-machined-part.webp\" width=\"800\" height=\"800\" alt=\"AISI 1020 welded steel component\" loading=\"lazy\" decoding=\"async\"><\/figure>\n      <figure class=\"sm-gallery-image\"><img loading=\"lazy\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/06\/1018-steel-cnc-part.webp\" width=\"800\" height=\"800\" alt=\"Custom machined steel component\" loading=\"lazy\" decoding=\"async\"><\/figure>\n      <figure class=\"sm-gallery-image\"><img loading=\"lazy\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/07\/C45-steel-part-with-nickel-plating.webp\" width=\"800\" height=\"800\" alt=\"Nickel-plated C45 steel part\" loading=\"lazy\" decoding=\"async\"><\/figure>\n      <figure class=\"sm-gallery-image\"><img loading=\"lazy\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/07\/CNC-machining-steel-part.webp\" width=\"800\" height=\"800\" alt=\"CNC machined steel part\" loading=\"lazy\" decoding=\"async\"><\/figure>\n      <figure class=\"sm-gallery-image\"><img loading=\"lazy\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/07\/4340-steel-with-heat-treatment.webp\" width=\"800\" height=\"800\" alt=\"Heat-treated 4340 steel part\" loading=\"lazy\" decoding=\"async\"><\/figure>\n      <figure class=\"sm-gallery-image\"><img loading=\"lazy\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/07\/q235-carbon-steel-parts-with-welding-process.webp\" width=\"800\" height=\"800\" alt=\"Welded Q235 carbon steel parts\" loading=\"lazy\" decoding=\"async\"><\/figure>\n      <figure class=\"sm-gallery-image\"><img loading=\"lazy\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/08\/1.4112-tool-steel-bolt-component.webp\" width=\"750\" height=\"750\" alt=\"1.4112 stainless steel bolt component\" loading=\"lazy\" decoding=\"async\"><\/figure>\n      <figure class=\"sm-gallery-image\"><img loading=\"lazy\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/07\/c40-steel-with-nickel-plating.webp\" width=\"800\" height=\"800\" alt=\"Nickel-plated C40 steel part\" loading=\"lazy\" decoding=\"async\"><\/figure>\n      <figure class=\"sm-gallery-image\"><img loading=\"lazy\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/06\/S225N-steel-machined-parts.webp\" width=\"800\" height=\"800\" alt=\"Machined structural steel components\" loading=\"lazy\" decoding=\"async\"><\/figure>\n      <figure class=\"sm-gallery-image\"><img loading=\"lazy\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/01\/1020%E7%BB%93%E6%9E%84%E9%92%A2-3.webp\" width=\"750\" height=\"563\" alt=\"1020 structural steel component\" loading=\"lazy\" decoding=\"async\"><\/figure>\n      <figure class=\"sm-gallery-image\"><img loading=\"lazy\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2026\/04\/st52-3-metal-board-1.webp\" width=\"800\" height=\"800\" alt=\"ST52-3 machined steel plate\" loading=\"lazy\" decoding=\"async\"><\/figure>\n      <figure class=\"sm-gallery-image\"><img loading=\"lazy\" src=\"https:\/\/weldomachining.com\/wp-content\/uploads\/2025\/12\/%E7%A2%B3%E9%92%A2-29-1.webp\" width=\"800\" height=\"600\" alt=\"Custom machined carbon steel part\" loading=\"lazy\" decoding=\"async\"><\/figure>\n    <\/div>\n  <\/div><\/section>\n\n  <!-- 08 \u2014 FAQ and project CTA -->\n  <section class=\"sm-section sm-soft\" aria-labelledby=\"sm-faq-title\"><div class=\"sm-wrap sm-final-grid\">\n    <div><h2 id=\"sm-faq-title\">Steel Machining Questions<\/h2><div class=\"sm-faq\">\n      <details open><summary>Should steel be heat-treated before or after machining?<\/summary><div class=\"sm-answer\"><p>The sequence depends on the grade, supplied condition, final hardness, and tolerance. A common route is rough machining, stress relief where appropriate, hardening and tempering, then final grinding or machining. Prehardened stock can be machined directly when the required properties and process allow.<\/p><\/div><\/details>\n      <details><summary>How is heat-treatment distortion managed?<\/summary><div class=\"sm-answer\"><p>Review stock condition, balanced removal, section changes, fixturing, and the treatment route. Leave suitable finishing allowance on critical features and inspect after treatment. These measures reduce risk, but heat treatment does not guarantee unchanged dimensions.<\/p><\/div><\/details>\n      <details><summary>What is the difference between 1018 and 1045?<\/summary><div class=\"sm-answer\"><p>1018 is a low-carbon steel commonly used for general components and weldments. 1045 has more carbon and can achieve greater hardness and strength through suitable heat treatment. Actual properties, machining behavior, and weldability depend on product form and material condition.<\/p><\/div><\/details>\n      <details><summary>Can hardened steel be CNC machined?<\/summary><div class=\"sm-answer\"><p>Yes, where hardness, geometry, rigidity, and tooling permit. Suitable carbide, ceramic, or CBN tools may be used for selected operations. Grinding or EDM can be more appropriate for very hard material, small details, or demanding form and surface requirements.<\/p><\/div><\/details>\n      <details><summary>What matters most when milling or turning steel?<\/summary><div class=\"sm-answer\"><p>Confirm the grade and hardness, maintain stable clamping, and match cutting tools and parameters to the operation. Manage heat, tool wear, burrs, and chips. Include any later heat-treatment movement or coating allowance before finishing critical dimensions.<\/p><\/div><\/details>\n      <details><summary>Which finish gives the best corrosion protection?<\/summary><div class=\"sm-answer\"><p>There is no universal choice. Zinc provides sacrificial protection; nickel is a barrier coating; black oxide and phosphate commonly rely on an oil, sealer, or paint system. Select the specified process and thickness for exposure, wear, appearance, and final fits.<\/p><\/div><\/details>\n    <\/div><\/div>\n    <aside class=\"sm-cta\"><h2>Let's Review Your Steel Part<\/h2><p>Send the drawing and intended use. We will review the grade, machining sequence, heat treatment, finishing, and inspection for a practical production plan and quotation.<\/p><ul class=\"sm-checks\"><li>3D model and controlled 2D drawing<\/li><li>Material standard, grade, and supplied condition<\/li><li>Quantity and target schedule<\/li><li>Final hardness and treatment requirements<\/li><li>Critical fits, datums, and surface finish<\/li><li>Inspection records and material documents<\/li><\/ul><div class=\"sm-files\" aria-label=\"Project file formats\"><span>STEP<\/span><span>IGES<\/span><span>DWG<\/span><span>DXF<\/span><span>PDF<\/span><\/div><a class=\"sm-button\" href=\"https:\/\/weldomachining.com\/contact-us\/\">Start Your Steel Part Review <svg viewBox=\"0 0 20 20\" aria-hidden=\"true\"><path 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><p class=\"sm-cta-note\">If the material is not yet selected, include load, wear, temperature, corrosion exposure, and any welding requirements.<\/p><\/aside>\n  <\/div><\/section>\n<\/main>\n<script>\n  (()=>{\n    const root=document.getElementById('weldo-steel-machining-page');\n    if(!root)return;\n    const tabs=Array.from(root.querySelectorAll('[role=\"tab\"]'));\n    const activateTab=tab=>{\n      tabs.forEach(item=>{\n        const active=item===tab;\n        item.setAttribute('aria-selected',String(active));\n        item.tabIndex=active?0:-1;\n        const panel=root.querySelector('#'+item.getAttribute('aria-controls'));\n        if(panel)panel.hidden=!active;\n      });\n    };\n    tabs.forEach((tab,index)=>{\n      tab.addEventListener('click',()=>activateTab(tab));\n      tab.addEventListener('keydown',event=>{\n        let next;\n        if(event.key==='ArrowRight')next=(index+1)%tabs.length;\n        else if(event.key==='ArrowLeft')next=(index-1+tabs.length)%tabs.length;\n        else if(event.key==='Home')next=0;\n        else if(event.key==='End')next=tabs.length-1;\n        else return;\n        event.preventDefault();\n        activateTab(tabs[next]);\n        tabs[next].focus();\n      });\n    });\n    const reduceMotion=window.matchMedia('(prefers-reduced-motion: reduce)').matches;\n    root.querySelectorAll('[data-sm-track]').forEach(button=>{\n      button.addEventListener('click',()=>{\n        const track=root.querySelector('#'+button.dataset.smTrack);\n        if(track)track.scrollBy({left:Number(button.dataset.smDirection)*track.clientWidth*.82,behavior:reduceMotion?'auto':'smooth'});\n      });\n    });\n  })();\n<\/script>\n<\/body>\n<\/html>\n\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>Steel CNC Machining Services | Weldo Steel CNC Machining Services Custom steel parts made to drawing for shafts, gears, tooling, and load-bearing components. We review the grade, material condition, machining route, heat treatment, and finish to suit the part\u2019s function and final dimensions. Carbon, Alloy &amp; Tool Steel Prototype to Production Heat Treatment &amp; Finishing [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":4076,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-4071","page","type-page","status-publish","has-post-thumbnail","hentry"],"_links":{"self":[{"href":"https:\/\/weldomachining.com\/ko\/wp-json\/wp\/v2\/pages\/4071","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/weldomachining.com\/ko\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/weldomachining.com\/ko\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/weldomachining.com\/ko\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/weldomachining.com\/ko\/wp-json\/wp\/v2\/comments?post=4071"}],"version-history":[{"count":168,"href":"https:\/\/weldomachining.com\/ko\/wp-json\/wp\/v2\/pages\/4071\/revisions"}],"predecessor-version":[{"id":15748,"href":"https:\/\/weldomachining.com\/ko\/wp-json\/wp\/v2\/pages\/4071\/revisions\/15748"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/weldomachining.com\/ko\/wp-json\/wp\/v2\/media\/4076"}],"wp:attachment":[{"href":"https:\/\/weldomachining.com\/ko\/wp-json\/wp\/v2\/media?parent=4071"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}