| 摘要 |
FIELD: metallurgy. ^ SUBSTANCE: iron contains components at following ratio, wt %: carbon 3.4-3.8; silicon 0.8-1.2; manganese 0.5-0.7; copper 0.2-0.3; aluminium 0.2-0.3; calcium 0.002-0.004, cerium 0.01-0.015; nitrogen 0.0008-0.001; nickel 0.2-0.3; tungsten 0.1-0.15; iron - the rest. ^ EFFECT: upgraded strength of iron. ^ 1 tbl |
