| 摘要 |
PURPOSE:To obtain an alloy tool steel having high performance, superior wear resistance, shock resistance and hardenability by adding specified amounts of C, Si, Mn, Cr, Mo and V to Fe. CONSTITUTION:The composition of an alloy tool steel is composed of, by weight, 1.3-2% C, <1% Si, <1% Mn, 9-13% Cr, 1.5-3% Mo, 0.5-2% V and the balance Fe with inevitable impurities. 0.8-3.5% Co may be added so as to increase the temper hardness further. The alloy tool steel is provided with superior characteristics by the composite effect of the added alloying elements and the balance among the components.
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