| 摘要 |
FIELD: metallurgy. ^ SUBSTANCE: invention concerns metallurgy field. Particularly it concerns cast iron content. Cast iron contains components in a following ratio, mass %: carbon 2.2-2.6; silicon 2.2-2.6; manganese 0.8-1.2; chrome 4.0-5.0; aluminum 0.4-0.8; zirconium 0.2-0.4; boron 0.08-0.12; iron - the rest. ^ EFFECT: hardening of cast iron. ^ 1 tbl |
