| 摘要 |
FIELD: metallurgy. ^ SUBSTANCE: invention concerns metallurgy field. Particularly it concerns cast irons content. Cast iron contains components in a following ratio, wt %: carbon 2.8-3.2; silicon 1.8-2.2; manganese 0.8-1.2; magnesium 0.005-0.01; aluminium 0.1-0.3; nickel 3.0-3.6; vanadium 1.5-2.0; boron 0.1-0.2; cobalt 0.2-0.3; selenium 0.001 -0.01; iron - the rest. ^ EFFECT: cast iron hardening. ^ 1 tbl |
