Stainless austenitic steel with low nickel content

• Main Author: HAUDRECHY, PASCALE
• Format: Patent
• Language: English; French; German
• Published: 05.01.2000
• Edition: 7
• Subjects: ALLOYS; CHEMISTRY; FERROUS OR NON-FERROUS ALLOYS; METALLURGY; TREATMENT OF ALLOYS OR NON-FERROUS METALS

The steel contains (in wt.%): 0.01-0.08 carbon, 0.1-1 silicon, 5-11 manganese, 15-17.5 chromium, 1-4 nickel, 1-4 copper, 1 x 10<-4>-20 x 10<-4> sulfur, 1 x 10<-4>-50 x 10<-4> calcium, 0-0.003 aluminum, 0.005-0.1 phosphorus, 5 x 10<-4> boron, 0.01 oxygen, and iron and unavoidable impurities the remainder. Preferably, the steel contains (in wt.%): 0.01-0.05 carbon, 0.1-1 silicon, 5-11 manganese, 15-17.5 chromium, 1-2 nickel, 2-4 copper, 1 x 10<-4>-10 x 10<-4> sulfur, 1 x 10<-4>-10 x 10<-4> calcium, 0-0.001 aluminum, 0.005-0.1 phosphorus, less than 0.01 oxygen, and iron and unavoidable impurities the remainder. The steel may also include 0.01-2% Mo. Acier inoxydable austénitique comportant une basse teneur en nickel et résistant à la corrosionprésentant la composition suivante en pourcentages pondéraux: 0,01% < carbone < 0,08%, 0,1 % < silicium < 1%, 5% < manganèse < 11%, 15% < chrome < 17,5%, 1% < nickel < 4%, 1% < cuivre < 4%, 1.10<-4>% < soufre < 20.10<-4>%, 1.10<-4>% < calcium < 50.10<-4>%, 0% < aluminium < 0,03%, 0,005% < phosphore < 0,1%, bore < 5.10<-4>%, oxygène < 0,01%, le reste étant du fer et des impuretés résultant de l'élaboration.