Austenitic stainless steel

C - Chemistry – Metallurgy – 22 – C

Patent

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Details

C22C 38/58 (2006.01) C22C 30/00 (2006.01) C22C 38/44 (2006.01) C22C 38/48 (2006.01)

Patent

CA 2603526

Embodiments of an austenitic stainless steel include, in weight percentages based on total weight of the steel: 0.05 to 0.2 carbon; 0.08 to 0.2 nitrogen; 20 to 23 chromium; 25 to 27 nickel; 1 to 2 molybdenum; greater than 1.5 to 4.0 manganese; 0.20 to 0.75 niobium; up to 0.1 titanium; iron; and incidental impurities. Certain other embodiments of an austenitic stainless steel include, in weight percentages based on total weight of the steel: 0.05 to 0.2 carbon; 0.08 to 0.2 nitrogen; 20 to 23 chromium; 25 to 27 nickel; 1 to 2 molybdenum; up 4.0 manganese; 0.20 to 0.75 niobium; at least one of no greater than 0.1 titanium and no greater than 0.1 aluminum; iron; and incidental impurities. 36

Selon certains modes de réalisation, un acier inoxydable austénitique contient, en pourcentage en poids sur la base du poids total de l'acier, 0,05 à 0,2 de carbone; 0,08 à 0.2 d'azote; 20 à 23 de chrome; 25 à 27 de nickel; 1 à 2 de molybdène; plus de 1,5 à 4.0 de manganèse; 0,20 à 0,75 de niobium; jusqu'à 0,1 de titane; du fer et les impuretés imprévues. Selon certains autres modes de réalisation, un acier inoxydable austénitique contient, en pourcentage en poids sur la base du poids total de l'acier, 0,05 à 0,2 de carbone; 0,08 à 0,2 d'azote; 20 à 23 de chrome; 25 à 27 de nickel; 1 à 2 de molybdène; jusqu'à 4,0 de manganèse; 0,20 à 0,75 de niobium; pas plus de 0,1 de titane et / ou pas plus de 0,1 d'aluminum; du fer et les impuretés imprévues.

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