{"id":5851,"date":"2020-04-26T06:20:03","date_gmt":"2020-04-26T06:20:03","guid":{"rendered":"https:\/\/www.kaysuns.com\/?p=5851"},"modified":"2025-06-30T08:10:46","modified_gmt":"2025-06-30T08:10:46","slug":"la-difference-entre-les-tubes-duplex-et-les-tubes-en-acier-inoxydable-304","status":"publish","type":"blog","link":"https:\/\/www.kaysuns.com\/fr\/blog\/la-difference-entre-les-tubes-duplex-et-les-tubes-en-acier-inoxydable-304\/","title":{"rendered":"La diff\u00e9rence entre les tuyaux duplex et les tuyaux en acier inoxydable 304"},"content":{"rendered":"

Le contenu de phase minimum du tuyaux et raccords duplex<\/a> doit \u00e9galement atteindre 30%. Il pr\u00e9sente les caract\u00e9ristiques de performance des tuyaux en acier inoxydable ferritique et des tuyaux en acier inoxydable aust\u00e9nitique. <\/em><\/p>\n\n\n\n

L'acier inoxydable dit duplex est que la phase ferrite et la phase aust\u00e9nite repr\u00e9sentent chacune environ la moiti\u00e9 du m\u00e9canisme de la solution solide.<\/em><\/p>\n\n\n\n

\n
\"tuyaux<\/a>
304 tuyaux en acier inoxydable<\/figcaption><\/figure>\n\n\n\n
\"tuyaux<\/a>
Tuyaux duplex<\/figcaption><\/figure>\n<\/figure>\n\n\n\n

Par rapport aux tuyaux en acier inoxydable aust\u00e9nitique et aux raccords de tuyauterie en acier inoxydable duplex, ils pr\u00e9sentent plus d'avantages\u00a0:<\/h3>\n\n\n\n

Tuyau duplex<\/a> a une plasticit\u00e9 suffisante requise pour le moulage. L'\u00e9paisseur de paroi du r\u00e9servoir de stockage ou du r\u00e9cipient sous pression en acier inoxydable duplex est inf\u00e9rieure de 30% \u00e0 50% au co\u00fbt d'utilisation moindre de l'acier inoxydable aust\u00e9nitique. Sa limite d'\u00e9lasticit\u00e9 est plus du double de celle de l'usine de tuyaux en acier inoxydable aust\u00e9nitique.<\/p>\n\n\n\n

En particulier dans un environnement contenant des ions chlorure, les tuyaux duplex pr\u00e9sentent une excellente r\u00e9sistance \u00e0 fissuration par corrosion sous contrainte<\/a>. M\u00eame les tubes duplex avec la plus faible teneur en alliage ont une r\u00e9sistance \u00e0 la corrosion sous contrainte sup\u00e9rieure \u00e0 celle des tubes en acier inoxydable aust\u00e9nitique. La corrosion sous contrainte est un probl\u00e8me majeur difficile \u00e0 r\u00e9soudre dans les tubes en acier inoxydable aust\u00e9nitique.<\/p>\n\n\n\n

Compar\u00e9 aux tuyaux en acier inoxydable aust\u00e9nitique avec une teneur en alliage similaire, il pr\u00e9sente une bonne r\u00e9sistance \u00e0 la corrosion. Compte tenu de la r\u00e9sistance \u00e9lev\u00e9e et de la r\u00e9sistance \u00e0 la corrosion brillante des tuyaux duplex, la r\u00e9sistance \u00e0 l'usure, la r\u00e9sistance \u00e0 la corrosion et les performances de fatigue par corrosion sont sup\u00e9rieures aux tuyaux en acier inoxydable aust\u00e9nitique.<\/p>\n\n\n\n

Consultez notre Liste des stocks de tubes Super Duplex 2507<\/a> et Liste des stocks de tuyaux en acier inoxydable 254SMO<\/a><\/p>\n\n\n\n

Le tuyau en acier inoxydable super duplex a une r\u00e9sistance \u00e0 la corrosion extr\u00eamement \u00e9lev\u00e9e, la r\u00e9sistance \u00e0 la corrosion du tuyau en acier inoxydable duplex 2205 le plus courant est meilleure que le tuyau en acier inoxydable aust\u00e9nitique 316L ordinaire. Il peut m\u00eame remplacer les alliages r\u00e9sistants \u00e0 la corrosion dans les milieux hautement corrosifs tels que l'acide ac\u00e9tique et l'acide formique.<\/p>","protected":false},"featured_media":5853,"template":"","categories":[186],"tags":[],"class_list":["post-5851","blog","type-blog","status-publish","has-post-thumbnail","hentry","category-stainless-steel-knowledge"],"yoast_head":"\nThe Difference Between Duplex Pipes And 304 Stainless Steel Pipes - Stainless Steel Pipe and Fittings | KAYSUNS<\/title>\n<meta name=\"description\" content=\"Compared with austenitic 304 stainless steel pipe and duplex pipe and fittings are better in corrosion resistance, stress corrosion resistance\" \/>\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\/la-difference-entre-les-tubes-duplex-et-les-tubes-en-acier-inoxydable-304\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"The Difference Between Duplex Pipes And 304 Stainless Steel Pipes - 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