| 摘要 |
FIELD: metallurgy. ^ SUBSTANCE: invention refers to metallurgy, particularly to compositions of iron. Iron contains elements at a following ratio, wt %: carbon 2.8-3.2, silicon 1.0-1.4, manganese 0.8-1.2, aluminium 0.2-0.3, nitrogen 0.03-0.07, copper 0.8-1.2, chromium 0.6-1.2, niobium 0.8-1.0, rhenium 0.2-0.4, iron - the rest. ^ EFFECT: upgraded hardness of iron. ^ 1 tbl |
