{"id":43977,"date":"2026-10-20T10:12:00","date_gmt":"2026-10-20T08:12:00","guid":{"rendered":"https:\/\/www.shapeways.com\/blog\/?p=43977"},"modified":"2026-10-20T12:02:22","modified_gmt":"2026-10-20T10:02:22","slug":"aluminium-vs-stainless-steel-vs-pom-c","status":"publish","type":"post","link":"https:\/\/www.shapeways.com\/blog\/aluminium-vs-stainless-steel-vs-pom-c","title":{"rendered":"Aluminium vs. Stainless Steel vs. POM-C: Choosing the Right Material for CNC Manufacturing"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">Choosing the right CNC material comes down to what your part needs to do.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Does it need to be lightweight? Handle high loads? Resist corrosion? Reduce friction?<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">At Shapeways, <a href=\"https:\/\/www.shapeways.com\/business\/cnc-machining-services\">CNC machining<\/a> is available in <strong><a href=\"https:\/\/www.shapeways.com\/materials\/cnc-aluminum\">Aluminium<\/a>, <a href=\"https:\/\/www.shapeways.com\/materials\/stainless-steel-new\">Stainless Steel<\/a> and <a href=\"https:\/\/www.shapeways.com\/materials\/pom-c\">POM-C<\/a><\/strong>, each offering a different balance of strength, weight, machinability and environmental resistance.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Here\u2019s how they compare.<\/p>\n\n\n\n<h2 id=\"h-aluminium-lightweight-and-versatile\" class=\"wp-block-heading\"><strong>Aluminium: Lightweight and Versatile<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Best for:<\/strong> Structural components, aerospace and defence parts, housings, fixtures and lightweight assemblies.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/www.shapeways.com\/materials\/cnc-aluminum\">Aluminium <\/a>combines <strong>low weight, good strength and excellent machinability<\/strong>, making it one of the most versatile CNC materials.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Shapeways offers three grades:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>5083:<\/strong> best suited to marine and corrosion-resistant applications<\/li>\n\n\n\n<li><strong>6082:<\/strong> a versatile all-round option for structural and mechanical components<\/li>\n\n\n\n<li><strong>7075:<\/strong> the highest-strength option, ideal for aerospace, defence and high-load applications<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">CNC machining is particularly effective for aluminium parts with pockets, mounting points, threads and other precision features.<\/p>\n\n\n\n<h2 id=\"h-stainless-steel-316l-strong-and-corrosion-resistant\" class=\"wp-block-heading\"><strong>Stainless Steel 316L: Strong and Corrosion Resistant<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Best for:<\/strong> Medical device components, pharmaceutical equipment, marine hardware and industrial parts exposed to demanding environments.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">When durability and corrosion resistance are the priority, <strong><a href=\"https:\/\/www.shapeways.com\/materials\/stainless-steel-new\">Stainless Steel 316L<\/a><\/strong> is a strong choice.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">It offers high mechanical strength and excellent resistance to corrosion, particularly in environments exposed to moisture, chemicals or cleaning processes.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">CNC machining allows complex stainless steel parts to be produced with precise holes, threads, interfaces and sealing surfaces while maintaining the full mechanical properties of the material.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">For applications where traceability matters, lot-specific material data can also be provided through <strong>EN 10204 3.1 material certification<\/strong>.<\/p>\n\n\n\n<h2 id=\"h-pom-c-low-friction-and-high-precision\" class=\"wp-block-heading\"><strong>POM-C: Low Friction and High Precision<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Best for:<\/strong> Gears, bearings, bushings, guides, housings, jigs, fixtures and sliding components.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/www.shapeways.com\/materials\/pom-c\">POM-C<\/a> is a high-performance engineering plastic that combines <strong>low friction, wear resistance and excellent dimensional stability<\/strong>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Its very low moisture absorption also helps parts maintain consistent dimensions in humid or wet environments.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">POM-C machines well, making it particularly useful for precision plastic components, moving mechanisms and assemblies where metal would add unnecessary weight.<\/p>\n\n\n\n<h2 id=\"h-how-to-choose-the-right-cnc-machining-material\" class=\"wp-block-heading\">How to Choose the Right CNC Machining Material?<\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>If you need&#8230;<\/strong><\/td><td><strong>Consider<\/strong><\/td><\/tr><tr><td>Lightweight structural performance<\/td><td><strong>Aluminium 6082<\/strong><\/td><\/tr><tr><td>Maximum aluminium strength<\/td><td><strong>Aluminium 7075<\/strong><\/td><\/tr><tr><td>Corrosion resistance in marine environments<\/td><td><strong>Aluminium 5083<\/strong><\/td><\/tr><tr><td>Strength + high corrosion resistance<\/td><td><strong>Stainless Steel 316L<\/strong><\/td><\/tr><tr><td>Low friction + lightweight precision<\/td><td><strong>POM-C<\/strong><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">The <a href=\"https:\/\/www.shapeways.com\/blog\/5-myths-about-cnc-machining-that-still-shape-bad-decisions\">best material <\/a>depends on the combination of <strong>mechanical load, weight, environment, geometry and production requirements<\/strong> of your part<\/p>\n\n\n\n<h2 id=\"h-find-the-right-material-with-shapeways\" class=\"wp-block-heading\"><strong>Find the Right Material with Shapeways<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/www.shapeways.com\/materials\">Material selection<\/a> and <a href=\"https:\/\/www.shapeways.com\/blog\/design-guidelines-for-cnc-machining-how-to-optimize-your-parts-for-precision-and-efficiency\">design <\/a>can have a major impact on how a product performs and how efficiently it can be manufactured.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/www.shapeways.com\/?srsltid=AfmBOor1AMaewrBEQfawuN2oQHAOfGvoqXGH5d1ru0ycKu9VL8qh-qgy\">Shapeways<\/a> combines <strong><a href=\"https:\/\/www.shapeways.com\/blog\/shapeways-now-offers-cnc-machining\">CNC machining<\/a>, industrial <a href=\"https:\/\/www.shapeways.com\/business\/additive-manufacturing\">additive manufacturing<\/a> and <a href=\"https:\/\/www.shapeways.com\/business\/additive-manufacturing#contactsales\">engineering expertise<\/a><\/strong> to help hardware teams choose the right material and production process from prototype through production.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Not sure which material fits your application? Talk to <a href=\"https:\/\/www.shapeways.com\/business\/additive-manufacturing#contactsales\">Shapeways<\/a> about your next <a href=\"https:\/\/www.shapeways.com\/blog\/shapeways-now-offers-cnc-machining\">CNC project<\/a>.<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<h2 id=\"h-interested-to-explore-further-below-you-find-more-information\" class=\"wp-block-heading\">Interested to explore further? Below you find more information: <\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/www.shapeways.com\/blog\/shapeways-now-offers-cnc-machining\">Introduction to CNC Machining <\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/www.shapeways.com\/blog\/design-guidelines-for-cnc-machining-how-to-optimize-your-parts-for-precision-and-efficiency\">Design Guidelines for CNC Machining.<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/www.shapeways.com\/blog\/3d-printed-vs-cnc-machined-metal-choosing-the-right-fit\">3D Printed vs CNC Machined Metal <\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<div class=\"wp-block-buttons is-content-justification-center is-layout-flex wp-container-core-buttons-is-layout-fe48e5de wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link has-background wp-element-button\" href=\"https:\/\/www.shapeways.com\/business\/cnc-digital-manufacturing\" style=\"background-color:#ff4b5a\">Explore Shapeways CNC Program<\/a><\/div>\n<\/div>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n","protected":false},"excerpt":{"rendered":"<p> Compare aluminium, stainless steel 316L and POM-C for CNC machining. Discover which material offers the right balance.<\/p>\n","protected":false},"author":211,"featured_media":44017,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[510],"tags":[],"class_list":["post-43977","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-3d-printing-industry"],"thumbnail":"https:\/\/www.shapeways.com\/blog\/wp-content\/uploads\/2026\/10\/CNC-images-2.png","yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v23.9 (Yoast SEO v23.9) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>CNC Machining Materials: Aluminium vs Stainless Steel vs POM-C<\/title>\n<meta name=\"description\" content=\"Compare CNC machining materials aluminium, stainless steel 316L and POM-C. Discover which material offers the right balance.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.shapeways.com\/blog\/aluminium-vs-stainless-steel-vs-pom-c\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Tini Linders\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"3 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/www.shapeways.com\/blog\/aluminium-vs-stainless-steel-vs-pom-c#article\",\"isPartOf\":{\"@id\":\"https:\/\/www.shapeways.com\/blog\/aluminium-vs-stainless-steel-vs-pom-c\"},\"author\":{\"name\":\"Tini Linders\",\"@id\":\"https:\/\/prodshapeblog.wpenginepowered.com\/#\/schema\/person\/b50a302ac118072f6294ea4d26b33009\"},\"headline\":\"Aluminium vs. Stainless Steel vs. POM-C: Choosing the Right Material for CNC Manufacturing\",\"datePublished\":\"2026-10-20T08:12:00+00:00\",\"dateModified\":\"2026-10-20T10:02:22+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/www.shapeways.com\/blog\/aluminium-vs-stainless-steel-vs-pom-c\"},\"wordCount\":475,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\/\/prodshapeblog.wpenginepowered.com\/#organization\"},\"image\":{\"@id\":\"https:\/\/www.shapeways.com\/blog\/aluminium-vs-stainless-steel-vs-pom-c#primaryimage\"},\"thumbnailUrl\":\"https:\/\/www.shapeways.com\/blog\/wp-content\/uploads\/2026\/10\/CNC-images-2.png\",\"articleSection\":[\"3D Printing Industry\"],\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\/\/www.shapeways.com\/blog\/aluminium-vs-stainless-steel-vs-pom-c#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.shapeways.com\/blog\/aluminium-vs-stainless-steel-vs-pom-c\",\"url\":\"https:\/\/www.shapeways.com\/blog\/aluminium-vs-stainless-steel-vs-pom-c\",\"name\":\"CNC Machining Materials: Aluminium vs Stainless Steel vs POM-C\",\"isPartOf\":{\"@id\":\"https:\/\/prodshapeblog.wpenginepowered.com\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/www.shapeways.com\/blog\/aluminium-vs-stainless-steel-vs-pom-c#primaryimage\"},\"image\":{\"@id\":\"https:\/\/www.shapeways.com\/blog\/aluminium-vs-stainless-steel-vs-pom-c#primaryimage\"},\"thumbnailUrl\":\"https:\/\/www.shapeways.com\/blog\/wp-content\/uploads\/2026\/10\/CNC-images-2.png\",\"datePublished\":\"2026-10-20T08:12:00+00:00\",\"dateModified\":\"2026-10-20T10:02:22+00:00\",\"description\":\"Compare CNC machining materials aluminium, stainless steel 316L and POM-C. 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