Patent ID: 6737018
Filing Date: 2004-05-18
Classification: C22C

Abstract:
A corrosion-resistant chromium steel for architectural and civil engineering structural elements, comprising:from about 0.0015 to about 0.02 mass percent C; from about 0.0015 to about 0.02 mass percent N; from about 0.1 to about 1.0 mass percent Si; from about 0.1 to about 3.0 mass percent Mn; more than about 5 mass percent to less than about 10 mass percent Cr; from about 0.01 to about 0.95 mass percent Ni; about 0.1 mass percent or less of Al; about 0.05 mass percent or less of F; about 0.03 mass percent or less of S; from about 0.01 to about 1.0 mass percent Go; and the balance being Fe and incidental impurities, the steel thereby having high long-term corrosion resistance and high weld-zone toughness.