| 摘要 |
The present invention provides a steel for mold for plastic molding, the steel consisting essentially of, in terms of % by weight, C: 0.22% to 0.35%, Si: 0.01% to 0.40%, Mn: 0.10% to 1.20%, P: up to 0.030%, Cu: 0.05% to 0.20%, Ni: 0.05% to 1.00%, Cr: 5.0% to 10.0%, Mo: 0.10% to 1.00%, V: more than 0.50% but 0.80% or less, N: 0.01 % to 0.2%, O: up to 0.0100%, and Al: up to 0.050%, with the remainder being Fe and unavoidable impurities; and also provides a mold produced using the steel.
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