{"id":6222,"date":"2020-07-14T06:36:12","date_gmt":"2020-07-14T06:36:12","guid":{"rendered":"https:\/\/www.kaysuns.com\/?p=6222"},"modified":"2025-07-01T06:30:44","modified_gmt":"2025-07-01T06:30:44","slug":"bref-historique-du-developpement-de-lacier-inoxydable-duplex","status":"publish","type":"blog","link":"https:\/\/www.kaysuns.com\/fr\/blog\/bref-historique-du-developpement-de-lacier-inoxydable-duplex\/","title":{"rendered":"Une br\u00e8ve histoire du d\u00e9veloppement de l'acier inoxydable duplex"},"content":{"rendered":"

Il y a eu trois g\u00e9n\u00e9rations d'acier inoxydable duplex<\/strong><\/h2>\n\n\n\n

Le d\u00e9veloppement de l'acier inoxydable duplex a une histoire de pr\u00e8s de 90 ans, et la phase ferrite et la phase aust\u00e9nite repr\u00e9sentent chacune 50% de la structure en acier inoxydable duplex.<\/p>\n\n\n\n

Le d\u00e9veloppement des aciers inoxydables duplex a commenc\u00e9 dans les ann\u00e9es 1930, \u00e0 l'\u00e9poque pour r\u00e9soudre le probl\u00e8me de l'utilisation des aciers inoxydables duplex. corrosion intergranulaire<\/a> des aciers inoxydables aust\u00e9nitiques \u00e0 haute teneur en carbone.<\/p>\n\n\n

\n
\"acier
acier inoxydable duplex 2205<\/figcaption><\/figure>\n<\/div>\n\n\n

L'inox duplex a maintenant 3 g\u00e9n\u00e9rations :<\/strong><\/h3>\n\n\n\n

La premi\u00e8re g\u00e9n\u00e9ration<\/strong>: repr\u00e9sent\u00e9 par l'acier inoxydable Type 329 d\u00e9velopp\u00e9 aux \u00c9tats-Unis dans les ann\u00e9es 1940, il est largement utilis\u00e9 dans les tuyaux d'\u00e9changeurs de chaleur des usines d'acide nitrique.<\/p>\n\n\n\n

Au milieu des ann\u00e9es 1960, la Su\u00e8de a d\u00e9velopp\u00e9 l'acier inoxydable duplex 3RE60 (00Cr18Ni5Mo3N) con\u00e7u pour am\u00e9liorer la r\u00e9sistance \u00e0 la rupture par corrosion du chlorure, mais en raison de sa teneur \u00e9lev\u00e9e en carbone, il est g\u00e9n\u00e9ralement utilis\u00e9 pour le moulage et le forgeage.<\/p>\n\n\n\n

Deuxi\u00e8me g\u00e9n\u00e9ration<\/strong>: Depuis les ann\u00e9es 1970, avec la popularisation et le d\u00e9veloppement de la technologie de raffinage secondaire (AOD), de la technologie de raffinage sous vide (VOD) et de la technologie de coul\u00e9e continue, la production d'acier \u00e0 tr\u00e8s faible teneur en carbone (w(C)\u22640.03%) est facile \u00e0 r\u00e9aliser. , 00Cr22Ni5Mo3N est le repr\u00e9sentant de l'acier inoxydable duplex de deuxi\u00e8me g\u00e9n\u00e9ration.<\/p>\n\n\n\n

La nuance d'acier a \u00e9t\u00e9 d\u00e9velopp\u00e9e avec succ\u00e8s par la Su\u00e8de dans les ann\u00e9es 1970, avec une nuance de mat\u00e9riau SAF2205<\/a>, et le grade am\u00e9ricain correspondant est UNS S31803.<\/p>\n\n\n\n

La troisi\u00e8me g\u00e9n\u00e9ration<\/strong>n : \u00c0 la fin des ann\u00e9es 1980, l'acier inoxydable duplex de troisi\u00e8me g\u00e9n\u00e9ration a \u00e9t\u00e9 d\u00e9velopp\u00e9 avec succ\u00e8s, et les principales marques sont SAF2507<\/a>.<\/p>\n\n\n\n

Il se caract\u00e9rise par une tr\u00e8s faible teneur en carbone, une haute r\u00e9sistance \u00e0 l'usure et une grande facilit\u00e9 d'utilisation. molybd\u00e8ne<\/a>L'acier inoxydable, \u00e0 haute teneur en azote, pr\u00e9sente une excellente r\u00e9sistance \u00e0 la corrosion, et ses propri\u00e9t\u00e9s de r\u00e9sistance \u00e0 la corrosion sont excellentes. PREN<\/a> la valeur est sup\u00e9rieure \u00e0 40.<\/p>\n\n\n\n

\n\n\n\n

Au 21\u00e8me si\u00e8cle, l'inox duplex a deux directions principales :<\/strong><\/h4>\n\n\n\n

Super qualit\u00e9<\/strong>: d'une part, augmenter encore la teneur en \u00e9l\u00e9ments d'alliage dans l'acier pour obtenir une r\u00e9sistance plus \u00e9lev\u00e9e et une meilleure r\u00e9sistance \u00e0 la corrosion, comme les SAF 2707 et SAF 3207 nouvellement d\u00e9velopp\u00e9s par la soci\u00e9t\u00e9 su\u00e9doise SANDVIK. La valeur PRE est sup\u00e9rieure \u00e0 45, ce qui est appel\u00e9 acier inoxydable super duplex (souvent exprim\u00e9 en HD).<\/p>\n\n\n\n

Qualit\u00e9 \u00e9conomique<\/strong>: D'autre part, nous nous tournons vers le d\u00e9veloppement d'acier inoxydable duplex \u00e9conomique \u00e0 faible teneur en nickel et sans molybd\u00e8ne ou seulement une petite quantit\u00e9 de molybd\u00e8ne pour r\u00e9duire le co\u00fbt et le prix de vente de l'acier inoxydable duplex, et am\u00e9liorer consid\u00e9rablement l'ouvrabilit\u00e9 \u00e0 chaud et le soudage d'acier inoxydable duplex Pour augmenter l'avantage concurrentiel de l'acier inoxydable duplex et d'autres types d'acier inoxydable.<\/p>\n\n\n

\n
\"d\u00e9veloppement<\/figure>\n<\/div>\n\n\n
\"nuances<\/figure>\n\n\n\n

La production d'acier inoxydable duplex en Chine est pass\u00e9e de moins de 1 000 tonnes en 2001 \u00e0 180 000 tonnes en 2019. Fournisseur de raccords de tuyauterie en acier inoxydable duplex<\/a> est \u00e9galement en augmentation dans les sp\u00e9cifications compl\u00e8tes et les mod\u00e8les de plaques, tuyaux, profil\u00e9s et ronds en acier inoxydable duplex.<\/p>","protected":false},"featured_media":5255,"template":"","categories":[186],"tags":[],"class_list":["post-6222","blog","type-blog","status-publish","has-post-thumbnail","hentry","category-stainless-steel-knowledge"],"yoast_head":"\nA Brief History Of The Development Of Duplex Stainless Steel - KAYSUNS<\/title>\n<meta name=\"description\" content=\"The development of duplex stainless steel has a history of nearly 90 years, and the ferrite phase and the austenite phase each account for 50%...\" \/>\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\/bref-historique-du-developpement-de-lacier-inoxydable-duplex\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"A Brief History Of The Development Of Duplex Stainless Steel - 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