| 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 2.7-3.1; silicon 1.7-2.1; manganese 0.7-1.1; magnesium 0.005-0.01; REE (rare earth elements) 0.05-0.1; nickel 0.5-0.9; niobium 0.15-0.3; copper 0.9-1.3; zirconium 0.07-0.15; nitrogen 0.07-0.15; molybdenum 1.7-2.5; iron - the rest. Implementation of the invention upgrades iron strength. ^ EFFECT: producing iron of upgraded strength. ^ 1 tbl |
