{"id":2533,"date":"2025-11-15T03:33:14","date_gmt":"2025-11-15T03:33:14","guid":{"rendered":"https:\/\/yonglihaomachinery.com\/?p=2533"},"modified":"2025-11-15T02:51:18","modified_gmt":"2025-11-15T02:51:18","slug":"316-vs-316l-stainless-steel","status":"publish","type":"post","link":"https:\/\/yonglihaomachinery.com\/fr\/316-vs-316l-stainless-steel\/","title":{"rendered":"Acier inoxydable 316 vs 316L\u00a0: quelle est la diff\u00e9rence\u00a0?"},"content":{"rendered":"<p>L&#039;acier inoxydable est couramment utilis\u00e9 pour le prototypage rapide en raison de sa robustesse, de sa durabilit\u00e9, de sa r\u00e9sistance \u00e0 la corrosion et de sa polyvalence. C&#039;est un mat\u00e9riau important qui peut \u00eatre travaill\u00e9 de diff\u00e9rentes mani\u00e8res, notamment par usinage de pr\u00e9cision CNC et par fonderie. Il existe de nombreuses nuances d&#039;acier inoxydable, et il est essentiel de comprendre la diff\u00e9rence entre l&#039;acier inoxydable 316 et 316L.<\/p>\n<p>Il est essentiel de conna\u00eetre la diff\u00e9rence entre l&#039;acier inoxydable 316 et l&#039;acier inoxydable 316L pour pouvoir les utiliser. Cet article met donc un terme au d\u00e9bat entre l&#039;acier inoxydable 316 et l&#039;acier inoxydable 316L. Il pr\u00e9sente les deux types d&#039;acier inoxydable, leur composition et leur fonctionnement. Il explique ensuite leurs similitudes et leurs diff\u00e9rences. Il propose \u00e9galement des conseils pour vous aider \u00e0 choisir le bon acier inoxydable.<\/p>\n<h2>Qu&#039;est-ce que l&#039;acier inoxydable 316\u00a0?<\/h2>\n<p>L&#039;acier inoxydable 316 est g\u00e9n\u00e9ralement appel\u00e9 \u00ab\u00a0nuance 316\u00a0\u00bb. Il s&#039;agit d&#039;un alliage d&#039;acier inoxydable courant aux caract\u00e9ristiques aust\u00e9nitiques. Sa teneur maximale en carbone est de 0,081\u00a0TP5T et sa teneur en molybd\u00e8ne est comprise entre 21\u00a0TP5T et 31\u00a0TP5T. Gr\u00e2ce \u00e0 sa teneur en molybd\u00e8ne, il est r\u00e9sistant \u00e0 la rouille et est utilis\u00e9 en milieu acide, sous piq\u00fbres et \u00e0 haute temp\u00e9rature.<\/p>\n<h3>Propri\u00e9t\u00e9s de l&#039;acier inoxydable 316<\/h3>\n<p>Gr\u00e2ce \u00e0 ses propri\u00e9t\u00e9s, l&#039;acier inoxydable 316 peut \u00eatre utilis\u00e9 pour le prototypage rapide de diverses applications. Voici quelques propri\u00e9t\u00e9s importantes\u00a0:<\/p>\n<ul>\n<li>Parce qu&#039;il est tr\u00e8s solide, vous pouvez le mouler de diff\u00e9rentes mani\u00e8res sans qu&#039;il se casse<\/li>\n<li>\u00c9tant tr\u00e8s r\u00e9sistant \u00e0 la corrosion et aux piq\u00fbres, il peut \u00eatre utilis\u00e9 pour cr\u00e9er des articles expos\u00e9s aux acides et aux produits chimiques.<\/li>\n<li>Il peut \u00eatre tr\u00e8s bien moul\u00e9 et soud\u00e9<\/li>\n<li>Le module d&#039;\u00e9lasticit\u00e9 est d&#039;environ 193 GPa<\/li>\n<li>Point de fusion entre 13710C et 13990C<\/li>\n<li>La r\u00e9sistance \u00e0 la traction est d&#039;au moins 515 MPa<\/li>\n<li>La densit\u00e9 est de 7,98 g\/cm3<\/li>\n<\/ul>\n<h3>Utilisations de l&#039;acier 316<\/h3>\n<p>L&#039;acier inoxydable 316 est couramment utilis\u00e9 pour la fabrication d&#039;articles n\u00e9cessitant une r\u00e9sistance \u00e9lev\u00e9e \u00e0 la corrosion. Ce mat\u00e9riau est utilis\u00e9 dans la fabrication d&#039;\u00e9changeurs de chaleur, d&#039;\u00e9quipements pharmaceutiques et photographiques, de pompes et de pi\u00e8ces fr\u00e9quemment en contact avec l&#039;eau. Cet alliage est \u00e9galement utilis\u00e9 dans les \u00e9vaporateurs et les \u00e9quipements de traitement chimique.<\/p>\n<p><img fetchpriority=\"high\" decoding=\"async\" class=\"size-full wp-image-24900 aligncenter\" src=\"https:\/\/yonglihaomachinery.com\/wp-content\/uploads\/2025\/03\/316-stainless-steel-connectors.webp\" alt=\"Usinage CNC de connecteurs en acier inoxydable 316\" width=\"768\" height=\"578\" srcset=\"https:\/\/yonglihaomachinery.com\/wp-content\/uploads\/2025\/03\/316-stainless-steel-connectors.webp 768w, https:\/\/yonglihaomachinery.com\/wp-content\/uploads\/2025\/03\/316-stainless-steel-connectors-300x226.webp 300w\" sizes=\"(max-width: 768px) 100vw, 768px\" \/><\/p>\n<h2>Qu&#039;est-ce que l&#039;acier inoxydable 316L ?<\/h2>\n<p>L&#039;acier inoxydable 316L est une autre appellation de l&#039;acier 316, dont la teneur en carbone est inf\u00e9rieure \u00e0 celle de l&#039;acier inoxydable 316. Il est compos\u00e9 de molybd\u00e8ne et de carbone 0,03%. Cette faible teneur en carbone r\u00e9duit les effets de la pr\u00e9cipitation de carbure lors de la manipulation de t\u00f4les, notamment lors du soudage.<\/p>\n<h3>propri\u00e9t\u00e9s de l&#039;acier inoxydable 316L<\/h3>\n<p>Gr\u00e2ce \u00e0 son mode de fabrication, l&#039;acier inoxydable 316L peut \u00e9galement \u00eatre utilis\u00e9 dans les processus de prototypage rapide pour diverses applications. Voici quelques propri\u00e9t\u00e9s importantes\u00a0:<\/p>\n<ul>\n<li>Il a une grande r\u00e9sistance au fluage<\/li>\n<li>Il peut \u00eatre bien modifi\u00e9 dans de nombreuses formes et tailles diff\u00e9rentes<\/li>\n<li>Le 316L se casse facilement \u00e0 haute temp\u00e9rature et poss\u00e8de une bonne r\u00e9sistance \u00e0 la traction<\/li>\n<li>La principale diff\u00e9rence entre l&#039;acier inoxydable 316L et l&#039;acier inoxydable 316 r\u00e9side dans sa teneur r\u00e9duite en carbone et en molybd\u00e8ne. Par cons\u00e9quent, sa r\u00e9sistance \u00e0 la corrosion est sup\u00e9rieure \u00e0 celle de l&#039;acier inoxydable 316.<\/li>\n<\/ul>\n<h3>Utilisations de l&#039;acier inoxydable 316L<\/h3>\n<p>De nombreuses industries utilisent couramment l&#039;acier inoxydable 316L pour la fabrication d&#039;outils et de mat\u00e9riaux. Parmi ces industries, on trouve\u00a0:<\/p>\n<ul>\n<li>Entreprises de produits chimiques et de transformation alimentaire<\/li>\n<li>Marin<\/li>\n<li>Bijoux<\/li>\n<li>Les entreprises qui traitent l&#039;eau<\/li>\n<li>Soci\u00e9t\u00e9s de production d&#039;\u00e9lectricit\u00e9<\/li>\n<\/ul>\n<p>Gr\u00e2ce \u00e0 ses propri\u00e9t\u00e9s m\u00e9caniques, il peut \u00eatre utilis\u00e9 pour le prototypage rapide, la fabrication de t\u00f4les et l&#039;usinage CNC. Dans le domaine m\u00e9dical, les attelles m\u00e9talliques imprim\u00e9es en 316L pr\u00e9sentent de bonnes propri\u00e9t\u00e9s m\u00e9caniques, une bonne r\u00e9sistance \u00e0 la traction, une longue dur\u00e9e de vie et un bel aspect.<\/p>\n<p><img decoding=\"async\" class=\"size-full wp-image-24899 aligncenter\" src=\"https:\/\/yonglihaomachinery.com\/wp-content\/uploads\/2025\/03\/316L-material-flange.webp\" alt=\"Usinage CNC de composants de bride en mat\u00e9riau 316L\" width=\"768\" height=\"578\" srcset=\"https:\/\/yonglihaomachinery.com\/wp-content\/uploads\/2025\/03\/316L-material-flange.webp 768w, https:\/\/yonglihaomachinery.com\/wp-content\/uploads\/2025\/03\/316L-material-flange-300x226.webp 300w\" sizes=\"(max-width: 768px) 100vw, 768px\" \/><\/p>\n<h2>Aciers inoxydables 316 et 316L\u00a0: leurs points communs<\/h2>\n<p>Nous allons d\u00e9couvrir d&#039;importantes similitudes entre les aciers 316 et 316L. Cela nous permettra de mieux comprendre leurs diff\u00e9rences et vous aidera \u00e0 choisir lequel utiliser. <strong><a href=\"https:\/\/yonglihaomachinery.com\/fr\/stainless-steel-material-guide\/\" target=\"_blank\" rel=\"noopener\">type d&#039;acier inoxydable<\/a><\/strong> \u00e0 utiliser dans votre projet.<\/p>\n<ul>\n<li><strong>R\u00e9sistance \u00e0 la corrosion<\/strong>Les aciers 316 et 316L sont tr\u00e8s r\u00e9sistants \u00e0 la corrosion, ce qui est particuli\u00e8rement utile en pr\u00e9sence de chlorures. Ces aciers inoxydables contiennent du molybd\u00e8ne et du nickel et sont donc r\u00e9sistants aux acides et aux sels.<\/li>\n<li><strong>Composition chimique<\/strong>:Les compos\u00e9s chimiques qui composent l&#039;acier inoxydable sont, bien s\u00fbr, tr\u00e8s similaires. Cependant, la composition du carbone est diff\u00e9rente.<\/li>\n<li><strong>Grande flexibilit\u00e9<\/strong>Les aciers 316 et 316L sont tr\u00e8s flexibles. De ce fait, ils peuvent \u00eatre facilement fa\u00e7onn\u00e9s en diff\u00e9rentes formes. De plus, ils ne se fissurent pas lorsqu&#039;ils sont \u00e9tir\u00e9s, perc\u00e9s, pli\u00e9s, tourn\u00e9s ou soumis \u00e0 d&#039;autres proc\u00e9d\u00e9s de fabrication.<\/li>\n<li><strong>Soudabilit\u00e9<\/strong>: C&#039;est un bon choix pour les proc\u00e9d\u00e9s de fabrication n\u00e9cessitant beaucoup de soudure, car il est tr\u00e8s r\u00e9sistant. Ils sont faciles \u00e0 d\u00e9couper en diff\u00e9rentes formes et peuvent \u00eatre utilis\u00e9s dans divers projets.<\/li>\n<li><strong>Prix<\/strong>:M\u00eame si les teneurs en carbone des aciers inoxydables 316 et 316L sont l\u00e9g\u00e8rement diff\u00e9rentes, la diff\u00e9rence de prix est minime. Leur prix est globalement identique.<\/li>\n<\/ul>\n<h2>Quelle est la diff\u00e9rence entre l\u2019acier inoxydable 316 et l\u2019acier inoxydable 316L\u00a0?<\/h2>\n<p>Vous vous demandez peut-\u00eatre quelle est la diff\u00e9rence entre l&#039;acier 316 et l&#039;acier 316L, m\u00eame s&#039;ils ont la m\u00eame fonction. Nous aborderons les diff\u00e9rences entre l&#039;acier inoxydable 316 et l&#039;acier inoxydable 316L dans cette section.<\/p>\n<h3>R\u00e9sistance \u00e0 la corrosion<\/h3>\n<p>L&#039;acier inoxydable 316L est plus r\u00e9sistant \u00e0 la corrosion due aux acides et aux chlorures que l&#039;acier inoxydable 316. En effet, il contient moins de carbone et plus de molybd\u00e8ne. De ce fait, l&#039;acier inoxydable 316L est plus adapt\u00e9 \u00e0 votre projet, car il r\u00e9siste mieux aux acides, aux produits chimiques et aux environnements.<\/p>\n<h3>Faible teneur en carbone<\/h3>\n<p>Dans les fabrications n\u00e9cessitant de nombreuses soudures, l&#039;acier 316L est sup\u00e9rieur \u00e0 l&#039;acier inoxydable 316 gr\u00e2ce \u00e0 sa teneur en carbone plus faible. C&#039;est la principale diff\u00e9rence entre l&#039;acier inoxydable 316 et l&#039;acier inoxydable 316L. De ce fait, la formation de carbure est moindre, ce qui peut entra\u00eener la d\u00e9composition du m\u00e9tal apr\u00e8s le soudage. Le 316L est donc un meilleur choix pour les travaux n\u00e9cessitant des soudures fr\u00e9quentes.<\/p>\n<h3>Propri\u00e9t\u00e9s m\u00e9caniques g\u00e9n\u00e9rales<\/h3>\n<p>En termes de propri\u00e9t\u00e9s m\u00e9caniques, l&#039;acier inoxydable 316 est sup\u00e9rieur au 316L : il a une r\u00e9sistance \u00e0 la traction plus \u00e9lev\u00e9e et est plus dur que le 316L.<\/p>\n<h2>Comment choisir le bon acier 316 ou 316L<\/h2>\n<p>Lors de la s\u00e9lection de l&#039;acier 316 et 316L, les points suivants doivent \u00eatre pris en compte en fonction des besoins du projet.<\/p>\n<h3>R\u00e9sistance \u00e0 la corrosion<\/h3>\n<p>La teneur en carbone des aciers inoxydables 316 et 316L les distingue. L&#039;acier 316L pr\u00e9sente une teneur en carbone inf\u00e9rieure \u00e0 celle de l&#039;acier inoxydable 316. Par cons\u00e9quent, l&#039;acier inoxydable 316L est sup\u00e9rieur \u00e0 celui-ci pour certaines applications, notamment celles n\u00e9cessitant une r\u00e9sistance \u00e0 la corrosion.<\/p>\n<h3>Co\u00fbt<\/h3>\n<p>Le prix est un facteur important dans le choix de tout type d&#039;acier. Cependant, la diff\u00e9rence de prix entre l&#039;acier 316 et l&#039;acier 316L n&#039;est pas un probl\u00e8me, car leurs teneurs en carbone sont l\u00e9g\u00e8rement diff\u00e9rentes. Votre choix doit donc d\u00e9pendre des besoins de votre projet.<\/p>\n<h3>Propri\u00e9t\u00e9s magn\u00e9tiques<\/h3>\n<p>L&#039;acier inoxydable 316 n&#039;est pas magn\u00e9tique, car il r\u00e9agit mal aux champs magn\u00e9tiques. Cependant, la structure solide de certains aciers inoxydables 316 peut \u00eatre modifi\u00e9e par un traitement ult\u00e9rieur, comme le soudage, pour les rendre plus magn\u00e9tiques.<\/p>\n<h3>Processus de fabrication<\/h3>\n<p>Avant de choisir quel acier inoxydable utiliser pour la fonderie de t\u00f4les ou <a href=\"https:\/\/yonglihaomachinery.com\/fr\/cnc-machining\/\" target=\"_blank\" rel=\"noopener\"><strong>Usinage CNC<\/strong><\/a>, Il est essentiel de comprendre les diff\u00e9rences entre l&#039;acier 316L et l&#039;acier 316. Pour la conception de t\u00f4les, il est conseill\u00e9, en cas de soudage, d&#039;\u00e9viter l&#039;acier inoxydable \u00e0 haute teneur en carbone. Enfin, pour l&#039;emboutissage et l&#039;usinage CNC, la connaissance des propri\u00e9t\u00e9s de ces mat\u00e9riaux est primordiale.<\/p>\n<p>En effet, l&#039;acier peut se fissurer en refroidissant sous l&#039;effet de la chaleur et de la rigidit\u00e9. Il est donc conseill\u00e9 d&#039;utiliser un acier inoxydable \u00e0 faible teneur en carbone. Compte tenu des caract\u00e9ristiques mentionn\u00e9es, l&#039;acier inoxydable 316L pr\u00e9sente une teneur en carbone inf\u00e9rieure \u00e0 celle de l&#039;acier inoxydable 316.<\/p>\n<h3>Propri\u00e9t\u00e9s m\u00e9caniques<\/h3>\n<p>Les deux alliages pr\u00e9sentent de bonnes propri\u00e9t\u00e9s m\u00e9caniques. La comparaison de la r\u00e9sistance \u00e0 la traction, de la ductilit\u00e9 et de la duret\u00e9 des deux m\u00e9taux r\u00e9v\u00e8le que l&#039;acier inoxydable 316 est sup\u00e9rieur au 316L. Le choix de l&#039;acier d\u00e9pend donc des exigences du projet.<\/p>\n<h2>Conclusion<\/h2>\n<p>Le type d&#039;acier inoxydable est important car il d\u00e9pend des besoins du projet. De ce fait, les nuances d&#039;acier font l&#039;objet de nombreux d\u00e9bats et pr\u00e9sentent des similitudes. La diff\u00e9rence entre l&#039;acier 316 et l&#039;acier 316L est souvent \u00e9voqu\u00e9e.<\/p>\n<p>La diff\u00e9rence entre l&#039;acier 316 et l&#039;acier 316L r\u00e9side dans leurs modes d&#039;utilisation et de fabrication diff\u00e9rents. Cet article les d\u00e9crit en d\u00e9crivant leurs types, leurs propri\u00e9t\u00e9s et leurs utilisations. Il explique ensuite les diff\u00e9rences et les similitudes entre les aciers inoxydables 316 et 316L, ainsi que la mani\u00e8re de choisir le bon acier inoxydable.<\/p>\n<p>Il est difficile de distinguer l&#039;acier inoxydable 316 de l&#039;acier inoxydable 316L. Si vous recherchez un produit de qualit\u00e9 et un r\u00e9sultat impeccable, Yonglihao Machinery est la solution id\u00e9ale. Nous proposons les meilleurs aciers inoxydables 316 et 316L. Forts de notre exp\u00e9rience et de la satisfaction de nos clients, nous restons parmi les leaders du secteur. <strong><a href=\"https:\/\/yonglihaomachinery.com\/fr\/\" target=\"_blank\" rel=\"noopener\">fabrication rapide<\/a><\/strong> Prestataires de services en Chine.<\/p>\n<p><strong>Lectures compl\u00e9mentaires :<a href=\"https:\/\/yonglihaomachinery.com\/fr\/304-vs-316-stainless-steel\/\" target=\"_blank\" rel=\"noopener\">Acier inoxydable 304 contre 316<\/a><\/strong><\/p>\n<h2>FAQ<\/h2>\n<h3><strong>Que signifie le \u00ab L \u00bb dans 316L ?<\/strong><\/h3>\n<p>Le \u00ab\u00a0L\u00a0\u00bb de 316L signifie \u00ab\u00a0faible\u00a0\u00bb et fait r\u00e9f\u00e9rence \u00e0 la faible teneur en carbone de l&#039;acier, qui ne d\u00e9passe pas 0,081\u00a0TP5T. C&#039;est la principale diff\u00e9rence entre l&#039;acier inoxydable 316 et l&#039;acier inoxydable 316L en termes d&#039;utilisation. Par exemple, l&#039;acier 316L est plus adapt\u00e9 aux projets n\u00e9cessitant un acier r\u00e9sistant aux fissures gr\u00e2ce \u00e0 sa faible teneur en carbone.<\/p>\n<h3><strong>L\u2019acier inoxydable 316L est-il sensible \u00e0 la rouille\u00a0?<\/strong><\/h3>\n<p>L&#039;acier inoxydable 316L contient du molybd\u00e8ne, ce qui le rend plus r\u00e9sistant \u00e0 la corrosion. Cela permet d&#039;\u00e9viter la rouille lorsqu&#039;il est expos\u00e9 \u00e0 des environnements tels que l&#039;air, le chlore et le sel.<\/p>\n<h3><strong>L&#039;acier inoxydable 316L change-t-il de couleur ?<\/strong><\/h3>\n<p>L&#039;acier 316L contenant une faible quantit\u00e9 de nickel, son utilisation dans les proc\u00e9d\u00e9s de fabrication ne provoque pas de sensibilit\u00e9 chez la plupart des personnes. De ce fait, il est hypoallerg\u00e9nique et peut \u00eatre utilis\u00e9 dans la fabrication d&#039;instruments m\u00e9dicaux et de bijoux.<\/p>","protected":false},"excerpt":{"rendered":"<p>Stainless steel is commonly used for rapid prototyping because it is strong, durable, corrosion resistant, and can also be used [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":24897,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"full-width-container","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center 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center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[18],"tags":[],"class_list":["post-2533","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-cnc-machining-news"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.0 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>316 vs 316L Stainless Steel: What&#039;s the Difference?<\/title>\n<meta name=\"description\" content=\"Discover the key differences between 316 and 316L stainless steel, from composition to corrosion resistance, and choose the right grade for your project.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/yonglihaomachinery.com\/fr\/316-vs-316l-stainless-steel\/\" 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