{"id":6409,"date":"2020-09-22T05:49:59","date_gmt":"2020-09-22T05:49:59","guid":{"rendered":"https:\/\/www.kaysuns.com\/?p=6409"},"modified":"2025-07-01T06:28:49","modified_gmt":"2025-07-01T06:28:49","slug":"90-ans-dhistoire-du-developpement-de-lacier-inoxydable-duplex","status":"publish","type":"blog","link":"https:\/\/www.kaysuns.com\/fr\/blog\/90-ans-dhistoire-du-developpement-de-lacier-inoxydable-duplex\/","title":{"rendered":"90 ans d&#039;histoire du d\u00e9veloppement de l&#039;acier inoxydable duplex"},"content":{"rendered":"<h2 class=\"wp-block-heading\"><strong>Septembre 2020 est l&#039;histoire du 90e anniversaire de l&#039;acier inoxydable duplex<\/strong><\/h2>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img fetchpriority=\"high\" decoding=\"async\" width=\"545\" height=\"453\" src=\"https:\/\/www.kaysuns.com\/wp-content\/uploads\/2020\/09\/Avesta-Ironworks-in-1930-located-in-Avesta-Sweden.jpg\" alt=\"Avesta Ironworks en 1930, situ\u00e9 \u00e0 Avesta, Su\u00e8de, histoire de l&#039;acier inoxydable duplex\" class=\"wp-image-6410\" srcset=\"https:\/\/www.kaysuns.com\/wp-content\/uploads\/2020\/09\/Avesta-Ironworks-in-1930-located-in-Avesta-Sweden.jpg 545w, https:\/\/www.kaysuns.com\/wp-content\/uploads\/2020\/09\/Avesta-Ironworks-in-1930-located-in-Avesta-Sweden-300x249.jpg 300w\" sizes=\"(max-width: 545px) 100vw, 545px\" \/><figcaption class=\"wp-element-caption\">Avesta Ironworks en 1930, situ\u00e9 \u00e0 Avesta, Su\u00e8de<\/figcaption><\/figure>\n<\/div>\n\n\n<h3 class=\"wp-block-heading\"><strong>des ann\u00e9es 30 aux ann\u00e9es 70<\/strong><\/h3>\n\n\n\n<p>Au d\u00e9but des ann\u00e9es 1900, les premiers aciers inoxydables duplex \u00e9taient constitu\u00e9s d'aust\u00e9nite, de ferrite ou de martensite pures. En 1930, la soci\u00e9t\u00e9 su\u00e9doise Avesta Ironworks a d\u00e9velopp\u00e9 le premier acier inoxydable duplex avec une combinaison de ferrite et d'aust\u00e9nite.<\/p>\n\n\n\n<p>Au d\u00e9but, l&#039;acier biphas\u00e9 \u00e9tait utilis\u00e9 pour les moulages, les barres et les plaques pour la p\u00e2te, la fabrication du papier et les applications \u00e0 haute temp\u00e9rature en raison de sa bonne r\u00e9sistance \u00e0 la corrosion et de sa coulabilit\u00e9. En 1932, l&#039;acier duplex repr\u00e9sentait 6,5% du march\u00e9 mondial de l&#039;acier inoxydable de 5 500 tonnes.<\/p>\n\n\n\n<p>Au cours des d\u00e9cennies suivantes, les m\u00e9tallurgistes ont d\u00e9velopp\u00e9 des techniques pour r\u00e9duire la teneur en carbone et introduire de l&#039;azote pour contr\u00f4ler la plasticit\u00e9 et la soudabilit\u00e9. Les am\u00e9liorations dans les ann\u00e9es 1950 comprenaient le d\u00e9veloppement de nuances d&#039;acier duplex additionn\u00e9es d&#039;azote pour r\u00e9duire le risque de fissuration pendant la coul\u00e9e et le soudage.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-css-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Acier inoxydable duplex de deuxi\u00e8me g\u00e9n\u00e9ration<\/strong><\/h3>\n\n\n\n<p>Le d\u00e9veloppement de l'acier duplex a atteint son apog\u00e9e dans les ann\u00e9es 1970. L'acier inoxydable duplex de deuxi\u00e8me g\u00e9n\u00e9ration pr\u00e9sente une meilleure r\u00e9sistance \u00e0 la corrosion. <a href=\"https:\/\/www.kaysuns.com\/fr\/corrosion-intergranulaire-danger-cache\/\" target=\"_blank\">corrosion intergranulaire<\/a>et a obtenu plus d'applications et un plus grand succ\u00e8s commercial.<\/p>\n\n\n\n<p>D&#039;un point de vue m\u00e9tallurgique, ces nuances d&#039;acier utilisent plus d&#039;azote pour favoriser la formation d&#039;aust\u00e9nite. Cela peut emp\u00eacher la structure duplex de se r\u00e9duire \u00e0 une ferrite compl\u00e8te dans la zone affect\u00e9e thermiquement apr\u00e8s le soudage ou le travail \u00e0 chaud. L&#039;azote aide \u00e9galement l&#039;acier \u00e0 r\u00e9sister \u00e0 la corrosion par piq\u00fbres tout en augmentant sa r\u00e9sistance.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-css-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">3e\u00a0: <strong>Super Duplex<\/strong><\/h3>\n\n\n\n<p>Le d\u00e9veloppement dans les ann\u00e9es 1970 et 1980 \u00e9tait principalement la troisi\u00e8me g\u00e9n\u00e9ration d&#039;aciers duplex : Forta SDX 2507, Forta SDX 100, les aciers inoxydables super duplex les plus fortement alli\u00e9s. Ces nuances contiennent plus d&#039;\u00e9l\u00e9ments d&#039;alliage et ont donc de meilleures performances, mais \u00e0 un co\u00fbt plus \u00e9lev\u00e9. L&#039;acier inoxydable super duplex r\u00e9pond aux besoins des industries p\u00e9troli\u00e8res, gazi\u00e8res, agroalimentaires et chimiques offshore.<\/p>\n\n\n\n<p>La d\u00e9finition la plus courante de l'acier inoxydable super duplex est que sa r\u00e9sistance \u00e0 la corrosion par piq\u00fbre (PRE ou PREN) doit atteindre au moins 40. Pour atteindre ce niveau de r\u00e9sistance \u00e0 la corrosion, les m\u00e9tallurgistes utilisent des \u00e9l\u00e9ments d'alliage tels que le chrome, <a href=\"https:\/\/www.kaysuns.com\/fr\/role-du-molybdene-dans-les-tubes-et-raccords-en-acier-inoxydable\/\" target=\"_blank\">molybd\u00e8ne<\/a>le tungst\u00e8ne, le nickel et le cuivre. Bien entendu, la pr\u00e9sence d'un plus grand nombre d'\u00e9l\u00e9ments d'alliage dans les aciers super duplex se traduit \u00e9galement par des co\u00fbts plus \u00e9lev\u00e9s, mais par rapport aux aciers aust\u00e9nitiques, ils sont g\u00e9n\u00e9ralement plus comp\u00e9titifs en termes de prix et peuvent \u00eatre consid\u00e9r\u00e9s comme un substitut aux aciers aust\u00e9nitiques.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-css-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Acier duplex faiblement alli\u00e9 (Duplex maigre)<\/strong><\/h3>\n\n\n\n<p>\u00c0 l&#039;autre extr\u00e9mit\u00e9 de la gamme de produits en acier duplex, l&#039;usine d&#039;Avesta a d\u00e9velopp\u00e9 au milieu des ann\u00e9es 1980 des aciers inoxydables duplex faiblement alli\u00e9s (Lean Duplex) pour minimiser les co\u00fbts des mati\u00e8res premi\u00e8res.<\/p>\n\n\n\n<p>Cela est particuli\u00e8rement vrai lorsque le nickel est utilis\u00e9 comme \u00e9l\u00e9ment d&#039;alliage. Au fil des ans, le prix du nickel a fortement fluctu\u00e9. Par cons\u00e9quent, en r\u00e9duisant la teneur en nickel, le <a href=\"https:\/\/www.kaysuns.com\/fr\/\" target=\"_blank\">fournisseur de raccords de tuyauterie en acier inoxydable<\/a> peut fournir aux clients des produits en acier inoxydable plus stables.<\/p>\n\n\n\n<p>Parmi ces Lean Duplex, le Forta LDX 2101 est particuli\u00e8rement populaire. Il contient plus de mangan\u00e8se et d&#039;azote pour compenser sa faible teneur en nickel. Il a une haute r\u00e9sistance, une bonne r\u00e9sistance \u00e0 la corrosion et des performances de soudage.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-css-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Duplex Formable<\/strong><\/h3>\n\n\n\n<p>Au cours des 10-15 derni\u00e8res ann\u00e9es, l&#039;acier Duplex avec des propri\u00e9t\u00e9s de moulage am\u00e9lior\u00e9es a \u00e9t\u00e9 d\u00e9velopp\u00e9 davantage. L&#039;\u00e9mergence du Formable Duplex Forta FDX 27 r\u00e9sout le probl\u00e8me selon lequel d&#039;autres aciers duplex ne peuvent pas avoir \u00e0 la fois une ductilit\u00e9 et une r\u00e9sistance \u00e9lev\u00e9e, et ne peuvent pas produire de pi\u00e8ces moul\u00e9es complexes et l\u00e9g\u00e8res.<\/p>","protected":false},"featured_media":6410,"template":"","categories":[186],"tags":[],"class_list":["post-6409","blog","type-blog","status-publish","has-post-thumbnail","hentry","category-stainless-steel-knowledge"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.6 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>History Of Duplex Stainless Steel Has Been 90 Years - KAYSUNS PIPES<\/title>\n<meta name=\"description\" content=\"During 90 years history of duplex stainless steel, there have been 4 generations of duplex products, such as super duplex, lean duplex.\" \/>\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\/90-ans-dhistoire-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=\"History Of Duplex Stainless Steel Has Been 90 Years - 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