Ferritic stainless steel having good corrosion resistance

Details Ferritic stainless steel having good corrosion resistance Ferritic stainless steel having good corrosion resistance

C - Chemistry, Metallurgy

22

C

75/120

C22C 38/26 (2006.01)

Patent

CA 1184402

FERRITIC STAINLESS STEEL HAVING GOOD CORROSION RESISTANCE Abstract of the Disclosure A 10 - 35%cr ferritic stainless steel stabilized with 0.20 - 1.00% of Nb wherein Nb% ? (8 x 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.

374835

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