| 摘要 |
PROBLEM TO BE SOLVED: To provide lead-free ferritic free cutting stainless steel which has excellent outgass resistance, corrosion resistance and machinability. SOLUTION: The ferritic free cutting stainless steel has a composition comprising, by mass,≤0.1% C,≤1.0% Si,≤0.5% Mn, >0.05 to 0.15% P, 0.1 to 0.4% S, 0.5 to 1.5% Cu,≤1.0% Ni, 16 to 21% Cr,≤1.0% Mo,≤0.05% N and≤0.03% O, and the balance Fe with inevitable impurities, and in which the ratio between the Mn content and the S content, (Mn/S) is controlled to≤2. COPYRIGHT: (C)2005,JPO&NCIPI
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