| 摘要 |
PROBLEM TO BE SOLVED: To provide a steel for high-speed cold working which exhibits excellent cold workability during working and good hardness after being worked. SOLUTION: The steel for high-speed cold working is characterized in that: it has a composition consisting of, by mass, >0.15 to 0.6% C, 0.005 to 0.6% Si, 0.05 to 2% Mn,≤0.05% (not including 0%) P,≤0.05% (not including 0%) S,≤0.04% (excluding 0%) N and the balance iron with inevitable impurities; and the amount of nitrogen in solid solution in the steel is≥0.006%. COPYRIGHT: (C)2009,JPO&INPIT
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