| 摘要 |
An austenitic stainless steel comprising, by weight, 17 to 23% chromium, 19 to 23% nickel, 1 to 6% molybdenum. The addition of molybdenum to the iron-base alloys of the invention increases their resistance to corrosion. The austenitic stainless steel may consisting essentially of, by weight, 17 to 23% chromium, 19 to 23% nickel, 1 to 6% molybdenum, 0 to 0.1% carbon, 0 to 1.5% manganese, 0 to 0.05% phosphorus, 0 to 0.02% sulfur, 0 to 1.0% silicon, 0.15 to 0.6% titanium, 0.15 to 0.6% aluminum, 0 to 0.75% copper, iron, and incidental impurities. Austenitic stainless steels according to the present invention exhibit enhanced resistance corrosion by salt at a broad temperature range up to at least 1500° F. Thus, the stainless steel of the present invention would find broad application as, for example, automotive components and, more particularly, as automotive exhaust system components and flexible connectors, as well as in other applications in which corrosion resistance is desired. |
