20100172785 | Ferritic-austenitic stainless steel - A ferritic-austenitic stainless steel having a microstructure which essentially consists of 35-65 vol-% ferrite and 35-65 vol-% austenite, has a chemical composition which contains in weight-%: 0.005-0.07 C, 0.1-2.0 Si, 3-8 Mn, 19-23 Cr, 0.5-1.7 Ni, optionally Mo and/or W in a total amount of max 1.0 (Mo+W/2), optionally Cu up to max 1.0 Cu, 0.15-0.30 N, balance iron and impurities. The following conditions shall apply for the chromium and nickel equivalents: 2007-08-2010 | |