Loading patent…
AssigneesSumitomo Metal Industries, Ltd., Nippon Stainless Steel Co., Ltd.
InventorsYoshio Tarutani, Taishi Moroishi, Masao Koike
Estimating the term…
A 10-35% Cr ferritic stainless steel stabilized with 0.20-1.00% of Nb wherein Nb%.gtoreq.(8.times.C%+2.0%) with impurities, such as carbon, nitrogen, phosphorous, oxygen and sulfur reduced to given levels is disclosed. By reducing the sulfur content to a level of not greater than 0.002%, preferably less than 0.001% or in cases where copper and/or nickel is added, to a level of not greater than 0.005%, the corrosion resistance of the resulting steel can markedly be improved. Since the ferritic stainless steel of this invention also exhibits a combination of good surface appearance and formability, it can be substituted for certain austenitic stainless steels not only as a general corrosion resistant material, but also as a material for making external automotive trims and so on.
A ferritic stainless steel exhibiting improved corrosion resistance, which consists essentially of:
A ferritic stainless steel exhibiting improved corrosion resistance, which consists essentially of:
A ferritic stainless steel exhibiting improved corrosion resistance, which consists essentially of:
A ferritic stainless steel exhibiting improved corrosion resistance, which consists essentially of:
A ferritic stainless steel as defined in claim 15 or 18 in which
Dependencies are inferred from the claim text.