FIELD: metallurgy.
SUBSTANCE: invention refers to metallurgy, particularly to compositions of iron. Iron contains elements at a following ratio, wt %: carbon 2.2-2.6, silicon 0.2-0.4, manganese 0.4-0.6, aluminium 0.05-0.15, nitrogen 0.05-0.15, copper 0.8-1.2, chromium 0.8-1.0, niobium 0.6-1.0, erbium 0.05-0.15, zirconium 0.05-0.15, iron - the rest.
EFFECT: upgraded tensile strength of iron.
1 tbl
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