IRON

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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 2.5-3.0; silicon 0.7-1.3; manganese 0.5-1.0; aluminium 2.7-3.2; copper 0.15-0.3; nickel 0.3-0.5; magnesium 0.03-0.07; REM (rare earth metals) 0.03-0.07; zirconium 0.07-0.15; molybdenum 0.3-0.5; niobium 0.05-0.1; iron - the rest.EFFECT : producing iron of upgraded heat resistance.1 tbl