Patent ID: 8877121

Claim:
An austenitic stainless steel consisting of, in weight %, up to 0.20 C, 2.0-6.0 Mn, greater than 0.5 to less than 1.0 Si, 16.0-23.0 Cr, 5.0-7.0 Ni, less than 1.5 Mo, 0.1-0.30 N, up to 4.0 W, 0.0005-0.01 B, up to 1.0 Co, balance iron and impurities, the steel having a ferrite number between 5.6 and 11, an MD 30 value less than −10° C., a PRE W value greater than 26 up to 30, and wherein 0.5≦(Mo+W/2)≦3.5.