| 摘要 |
A steel material for hot work tools has an alloy composition that in weight-% essentially consists of: 0.3-0.4 C, 0.2-0.8 Mn, 4-6 Cr, 1.8-3 Mo, 0.4-0.8 V, balance iron and unavoidable metallic and non-metallic impurities, said non-metallic impurities comprising silicon, nitrogen, oxygen, phosphor and sulfur, the contents of which does not exceed the following maximum contents: max. 0.25 Si, max. 0.010 N, max. 10 ppm O, max. 0.010 weight-% P. |
