| 摘要 |
PROBLEM TO BE SOLVED: To provide a ferritic stainless steel sheet which is provided with deep drawability and secondary working brittleness resistance, and has excellent coating suitability and corrosion resistance as well, and to provide a production method therefor. SOLUTION: In the final cold rolled sheet of a ferritic stainless steel sheet having a composition containing, by mass,≤0.01% C,≤1.0% Si,≤1.5% Mn, 11 to 23% Cr,≤0.06% P,≤0.03% S,≤1.0% Al,≤0.04% N, 0.0005 to 0.01% B,≤0.3% V,≤0.8% Nb and/or≤1.0% Ti, and 18≤Nb/(C+N)+2(Ti/(C+N)≤60, and the balance Fe with inevitable impurities, a mean crystal grain size is controlled to≤40μm, and a surface roughness Ra is controlled to≤0.3μm. COPYRIGHT: (C)2003,JPO
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