| 摘要 |
FIELD: metallurgy. ^ SUBSTANCE: invention concerns metallurgy. Particularly it concerns cast irons composition which is used in mechanical engineering. Cast iron contains, wt %: carbon 3.85-4.0; silicon 1.6-1.8; manganese 0.2-0.4; zirconium 0.55-0,6; boron 0.14-0.2; tellurium 0.002-0.008; calcium 0.01-0.02; lithium 0.002-0.008; iron - the rest. ^ EFFECT: hardening of cast iron. ^ 1 tbl |
