| 简介 |
The invention relates to a steel which is characterized in a chemical composition containing in weight-% : 0.3 to 0.5% C, from traces to max. 1.5% Si, 0.2 to 1.5% Mn, 0.01 to 0.2% S, 1.5 to 4% Cr, 1.5 to 5% Ni, 0.5 to 2% Mo, which at least partly may be replaced by twice as much W, 0.2 to 1.5% V, from traces to totally max. 0.2% of rare earth metals, balance essentially only iron, impurities and accessory elements in normal amounts. The invention relates also to a process for the manufacturing of a blank of the steel as well as to a process for the manufacturing of a cutting tool body or a holder for cutting tools. |
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