| 摘要 |
FIELD: transport machine engineering. ^ SUBSTANCE: steel contains, mass%: carbon, 0.4 - 0.6; silicon, 0.4 - 0.6; manganese, 0.8 - 1.2; chrome, 0.8 - 1.2; molybdenum, 2.0 - 3.0; aluminum, 0.1 - 0.2; vanadium, 0.5 - 1.0; nitrogen, 0.05 - 0.1; magnesium, 0.005 - 0.01; copper, 0,8 - 1.2; cobalt, 0.8 - 1.2; iron, the balance. ^ EFFECT: improved strength of steel. ^ 1 tbl |
