| 摘要 |
PROBLEM TO BE SOLVED: To provide a stainless steel sheet having inexpensive price and excellent in corrosion resistance.SOLUTION: There is provided a stainless steel sheet having a chemical composition in a sheet thickness direction center part of the steel sheet containing, by mass%, C:0.12% or less, Si:0.75% or less, Mn:1.00% or less, P:0.040% or less, S:0.030% or less, N:0.07% or less, Cr:16.00 to 18.00%, Al:0.2% or less, Ti:0.01% or less and the balance:Fe with impurities, N content [N]s (mass%), Al content [Al]s (mass%) and Ti content [Ti]s (mass%) on a surface layer part satisfying following (i) formula, a metal structure at the sheet thickness direction center part mainly containing ferrite and a metal structure at the surface part manly containing martensite without detection of Cr nitride in an X-ray diffraction analysis. 0.4≤[N]s-0.5×[Al]s-0.3×[Ti]s≤1.7 (i).SELECTED DRAWING: None |
