{"id":5619,"date":"2020-02-16T07:05:58","date_gmt":"2020-02-16T07:05:58","guid":{"rendered":"https:\/\/www.kaysuns.com\/?p=5619"},"modified":"2025-07-01T06:35:51","modified_gmt":"2025-07-01T06:35:51","slug":"quest-ce-que-lacier-super-inoxydable-et-ou-est-il-utilise","status":"publish","type":"blog","link":"https:\/\/www.kaysuns.com\/fr\/blog\/quest-ce-que-lacier-super-inoxydable-et-ou-est-il-utilise\/","title":{"rendered":"Que sont les super aciers inoxydables et o\u00f9 sont-ils utilis\u00e9s ?"},"content":{"rendered":"

Aciers super inoxydables, alliage \u00e0 base de nickel<\/h2>\n

Qu'est-ce que l'acier super inoxydable ? Tout d'abord, sa composition chimique est diff\u00e9rente de celle de l'acier inoxydable ordinaire. Il s'agit d'un acier inoxydable fortement alli\u00e9 contenant beaucoup de nickel, de chrome et d'acier inoxydable. molybd\u00e8ne<\/a>.<\/p>\n

Selon les caract\u00e9ristiques de la microstructure de l'acier inoxydable, l'acier inoxydable super est divis\u00e9 en acier inoxydable super ferritique, acier inoxydable super aust\u00e9nitique, acier inoxydable super martensitique et acier inoxydable super duplex.<\/p>\n

\n

Acier inoxydable super aust\u00e9nitique<\/em> est bas\u00e9 sur l'acier inoxydable aust\u00e9nitique ordinaire, en am\u00e9liorant la puret\u00e9 de l'alliage, en augmentant le nombre d'\u00e9l\u00e9ments b\u00e9n\u00e9fiques, en r\u00e9duisant la teneur en C, en emp\u00eachant la pr\u00e9cipitation de Cr23C6 caus\u00e9e par les \u00e9l\u00e9ments suivants corrosion intergranulaire<\/a>L'acier inoxydable stabilis\u00e9 au Ti peut \u00eatre utilis\u00e9 pour la fabrication de produits en acier inoxydable et pour obtenir de bonnes propri\u00e9t\u00e9s m\u00e9caniques, des propri\u00e9t\u00e9s de traitement et une bonne r\u00e9sistance locale.<\/p>\n

Acier inoxydable super ferritique<\/em> h\u00e9rite des caract\u00e9ristiques de l'acier inoxydable ferritique ordinaire, telles qu'une r\u00e9sistance \u00e9lev\u00e9e, une bonne r\u00e9sistance \u00e0 l'oxydation et une excellente r\u00e9sistance \u00e0 la corrosion sous contrainte. En m\u00eame temps, il am\u00e9liore la ductilit\u00e9 de la transition acier inoxydable ferritique-fragile, la sensibilit\u00e9 \u00e0 la corrosion intergranulaire et l'\u00e9tat de la soudure. Limitations telles que la faible t\u00e9nacit\u00e9.<\/p>\n

L'utilisation de la technologie de raffinage, la r\u00e9duction de la teneur en C et N, l'ajout d'\u00e9l\u00e9ments de stabilisation et de durcissement du m\u00e9tal soud\u00e9, permettent d'obtenir de l'acier inoxydable super ferritique \u00e0 haute teneur en Cr, Mo et \u00e0 tr\u00e8s faible teneur en C, N, ce qui rend l'acier inoxydable ferritique r\u00e9sistant \u00e0 la corrosion et \u00e0 la r\u00e9sistance Application de piq\u00fbres de chlorure et la corrosion caverneuse est entr\u00e9e dans une nouvelle \u00e9tape.<\/p>\n

Acier inoxydable super duplex<\/em> Ce type d'acier a \u00e9t\u00e9 d\u00e9velopp\u00e9 \u00e0 la fin des ann\u00e9es 1980. Ses notes sont principalement SAF2507<\/a>, UR52N, Zeron100, etc. V\u00e9rifiez chez kaysuns tuyaux duplex<\/a>.<\/p>\n

\"tuyaux<\/a><\/p>\n

Il se caract\u00e9rise par une faible teneur en C, une teneur \u00e9lev\u00e9e en Mo et en N, et la teneur en phase ferrite dans l'acier repr\u00e9sente le 40%. % 45%, avec une excellente r\u00e9sistance \u00e0 la corrosion.<\/p>\n

Acier inoxydable super martensitique<\/em> est un acier inoxydable durcissable avec une duret\u00e9, une r\u00e9sistance et une r\u00e9sistance \u00e0 l'usure \u00e9lev\u00e9es, mais une t\u00e9nacit\u00e9 et une soudabilit\u00e9 m\u00e9diocres.<\/p>\n

L'acier inoxydable martensitique ordinaire manque de ductilit\u00e9 suffisante, il est tr\u00e8s sensible aux contraintes lors de la d\u00e9formation et le formage \u00e0 froid est plus difficile. En r\u00e9duisant la teneur en carbone et en augmentant la teneur en nickel, un acier inoxydable super martensitique peut \u00eatre obtenu.<\/p>\n

Ces derni\u00e8res ann\u00e9es, divers pays ont massivement investi dans le d\u00e9veloppement d'aciers super martensitiques \u00e0 faible teneur en carbone et \u00e0 faible teneur en azote, et un certain nombre d'applications diff\u00e9rentes des aciers super martensitiques ont \u00e9t\u00e9 d\u00e9velopp\u00e9es.<\/p>\n

L'acier super martensitique a \u00e9t\u00e9 largement utilis\u00e9 dans les \u00e9quipements d'extraction, de stockage et de transport de p\u00e9trole et de gaz, la production d'\u00e9nergie hydro\u00e9lectrique, les \u00e9quipements de production de p\u00e2te chimique et \u00e0 haute temp\u00e9rature.<\/p>\n

\n

Applications de l'acier inoxydable Super<\/strong>:<\/strong><\/h3>\n
    \n
  • 1. Oc\u00e9an : structures marines en milieu marin, dessalement, aquaculture d'eau de mer, \u00e9change thermique d'eau de mer, etc.<\/li>\n
  • 2. Domaine de la protection de l'environnement : \u00e9quipement de d\u00e9sulfuration des fum\u00e9es pour la production d'\u00e9nergie thermique, le traitement des eaux us\u00e9es, etc.<\/li>\n
  • 3. Domaine de l'\u00e9nergie\u00a0: production d'\u00e9nergie atomique, utilisation compl\u00e8te du charbon, production d'\u00e9nergie par mar\u00e9e, etc.<\/li>\n
  • 4. Industrie p\u00e9trochimique : raffinage du p\u00e9trole, \u00e9quipements chimiques et chimiques, etc.<\/li>\n
  • 5. Domaine alimentaire : fabrication de sel, brassage de sauce soja, etc.<\/li>\n<\/ul>","protected":false},"featured_media":5503,"template":"","categories":[186],"tags":[],"class_list":["post-5619","blog","type-blog","status-publish","has-post-thumbnail","hentry","category-stainless-steel-knowledge"],"yoast_head":"\nWhat Is Super Stainless Steels And Where Are They Used? - Stainless Steel Pipe and Fittings | KAYSUNS<\/title>\n<meta name=\"description\" content=\"According to the microstructure characteristics of stainless steel, super stainless steel is divided into super ferritic stainless steel, super austenitic stainless steel, super martensitic stainless steel and super duplex stainless steel.\" \/>\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\/quest-ce-que-lacier-super-inoxydable-et-ou-est-il-utilise\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"What Is Super Stainless Steels And Where Are They Used? 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