| 摘要 |
FIELD: metallurgy, iron and steel industry. ^ SUBSTANCE: invention refers to metallurgy, particularly to compositions of iron. Iron contains elements at a following ratio, mas.%: carbon 3.3-3.7; silicon 1.8-2.3; manganese 1.0-1.5; copper 0.8-1.2; aluminium 0.1-0.2; calcium 0.003-0.007; zinc 0.005-0.01; phosphorus 0.1-0.2; barium nitrides 0.003-0.005; molybdenum 4.0-4.5; niobium 0.5-1.0; iron - the rest. ^ EFFECT: producing iron of upgraded iron strength. ^ 1 tbl |
