| 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 2.7-3.3; silicon 2.0-2.5; manganese 0.8-1.2; chromium 0.3-0.5; copper 0.2-0.4; magnesium 0.005-0.01; REM (rare earth metals) 0.1-0.2; zirconium 0.5-1.0; iron - the rest. ^ EFFECT: reducing formation of gaseous and slag cavities in iron structure. ^ 1 tbl |
