| 摘要 |
PROBLEM TO BE SOLVED: To provide a cost-effective austenitic stainless steel composition having low nickel and low molybdenum with at least comparable corrosion resistance and formability properties relative to higher nickel alloys.SOLUTION: An austenitic stainless steel comprises, in weight percent, up to 0.20 C, 2.0-9.0 Mn, up to 1.0 Si, 16.0-23.0 Cr, 1.0-3.0 Ni, up to 3.0 Mo, 0.1-0.35 N, 0.05-4.0 W, up to 0.01 B, up to 1.0 Co, iron and impurities. The steel has a ferrite number equal to or greater than 3 and less than 10, and a MDvalue of less than 20°C. |
