{"id":30626,"date":"2022-03-09T13:24:25","date_gmt":"2022-03-09T13:24:25","guid":{"rendered":"https:\/\/www.kaysuns.com\/?p=30626"},"modified":"2025-06-12T06:09:00","modified_gmt":"2025-06-12T06:09:00","slug":"tube-en-acier-inoxydable-316l-contre-tube-en-acier-inoxydable-1-4404","status":"publish","type":"blog","link":"https:\/\/www.kaysuns.com\/fr\/blog\/tube-en-acier-inoxydable-316l-contre-tube-en-acier-inoxydable-1-4404\/","title":{"rendered":"Tube en acier inoxydable 316L VS tube en acier inoxydable 1.4404"},"content":{"rendered":"
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Tube en acier inoxydable 316L VS tube en acier inoxydable 1.4404<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t
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316L tube en acier inoxydable<\/a> poss\u00e8de une bonne r\u00e9sistance \u00e0 la corrosion et de bonnes propri\u00e9t\u00e9s de traitement m\u00e9canique, il est non seulement largement utilis\u00e9 dans l'industrie chimique, mais a \u00e9galement un large \u00e9ventail d'applications pour d'autres industries. Acier inoxydable 316L<\/a> est l'un des repr\u00e9sentants typiques de l'acier inoxydable aust\u00e9nitique, et c'est aussi le mat\u00e9riau le plus largement utilis\u00e9, en particulier dans l'Union europ\u00e9enne, aux \u00c9tats-Unis et dans d'autres pays d\u00e9velopp\u00e9s.<\/p>

Quelle est la diff\u00e9rence entre le 316L et le 1.4404, s'agit-il de grades \u00e9quivalents ? Parce que nous avons souvent des clients qui ont besoin tuyau en acier inoxydable 1.4404<\/a> et les raccords, nous ne sommes pas en mesure de fournir du 1.4404 dans la pratique et ne pouvons que le remplacer par la qualit\u00e9 ASME. Prenons donc aujourd'hui un \u00e9chantillon de tuyau en acier inoxydable et analysons s'ils sont interchangeables.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t

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Pourquoi cette question ?<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t
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Parce que nous avons beaucoup de clients dans des projets o\u00f9 ils ont besoin des normes EN\/DIN. Et les normes EN ne sont pas des qualit\u00e9s courantes sur le march\u00e9 int\u00e9rieur chinois. Lorsque les clients ont besoin de petites quantit\u00e9s, nous leur demandons g\u00e9n\u00e9ralement de v\u00e9rifier si nous pouvons utiliser une qualit\u00e9 ASME \u00e9quivalente pour remplacer la qualit\u00e9 EN, car l'ASTM est plus facilement disponible. Cela nous am\u00e8ne donc \u00e0 la question, nous allons faire une br\u00e8ve analyse aujourd'hui \u00e0 partir de leur composition chimique et de leurs propri\u00e9t\u00e9s m\u00e9caniques.<\/p>

La plupart des aciers 316L disponibles sont g\u00e9n\u00e9ralement produits selon la norme am\u00e9ricaine en Chine. Pour des raisons de co\u00fbt, les aci\u00e9ries r\u00e9duisent g\u00e9n\u00e9ralement la teneur en nickel de leurs produits autant que possible. La norme am\u00e9ricaine stipule que la teneur en Ni du 316L est de 10-14%, tandis que la norme europ\u00e9enne stipule que la teneur en Ni du 316L est de 10-13%. En raison du prix \u00e9lev\u00e9 du nickel et de la n\u00e9cessit\u00e9 pour les aci\u00e9ries de r\u00e9duire leurs co\u00fbts, la teneur en nickel r\u00e9elle que nous d\u00e9tectons est g\u00e9n\u00e9ralement comprise entre 10,01 et 10,5, et rarement sup\u00e9rieure \u00e0 10,5.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t

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316L VS 1.4404<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t
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Composition chimique<\/strong><\/h3>\n

Veuillez consulter le tableau ci-dessous, la composition de TP316L est issue de la norme ASTM A312, et celle de 1.4404 de la norme EN 10216-5, ce sont les normes communes pour les tuyaux en acier inoxydable aux \u00c9tats-Unis et dans l'UE respectivement. Par comparaison, nous avons constat\u00e9 que la norme 1.4404 a une exigence claire en mati\u00e8re de teneur en N et une exigence minimale en mati\u00e8re de teneur en Cr de 16,5. Les autres valeurs indiqu\u00e9es ici sont des exigences maximales, nous pensons donc que les autres \u00e9l\u00e9ments sont les m\u00eames. Si la norme TP316L est utilis\u00e9e \u00e0 la place de la norme 1.4404, il est important d'examiner si la teneur en chrome satisfait \u00e0 l'exigence minimale de 16,5. Si la teneur en chrome se situe entre 16,0 et 16,5, nous devons nous demander si cela est acceptable pour le client.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t

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Exigences m\u00e9caniques<\/strong><\/h3>

Comme nous pouvons le voir dans le tableau ci-dessous, les exigences pour les tubes en acier inoxydable 1.4404 sont plus \u00e9lev\u00e9es, mais la diff\u00e9rence n'est pas significative. Selon notre exp\u00e9rience pratique, ASTM A312 TP316L est capable de r\u00e9pondre aux exigences.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t

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D'apr\u00e8s la comparaison ci-dessus, nous pensons que le TP316L est une alternative au 1.4404 si le client n'a pas d'exigences particuli\u00e8res. Ainsi, si vous avez besoin tuyaux et raccords en acier inoxydable<\/a> en 1.4404, veuillez nous permettre d'utiliser du 316L \u00e0 la place si la quantit\u00e9 n'est pas consid\u00e9rable.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t

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\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\tLinkedIn\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>","protected":false},"featured_media":30734,"template":"","categories":[186,85],"tags":[],"class_list":["post-30626","blog","type-blog","status-publish","has-post-thumbnail","hentry","category-stainless-steel-knowledge","category-news"],"yoast_head":"\n316L Stainless Steel Pipe VS 1.4404 SS Pipe | KAYSUNS<\/title>\n<meta name=\"description\" content=\"This article will introduce 316L VS 1.4404 - from chemical composition and mechnical properties to check if they are equivalent grade.\" \/>\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.kaysuns.com\/fr\/blog\/tube-en-acier-inoxydable-316l-contre-tube-en-acier-inoxydable-1-4404\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"316L Stainless Steel Pipe VS 1.4404 SS Pipe | KAYSUNS\" \/>\n<meta property=\"og:description\" content=\"This article will introduce 316L VS 1.4404 - 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