IRON

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FIELD : metallurgy.SUBSTANCE : invention refers to metallurgy, particularly to compositions of iron. Iron contains components at the following ratio, mass % : carbon 3.0-3.5; silicon 1.0-1.5; manganese 1.0-1.5; aluminium 0.3-0.5; zirconium 0.1-0.2; rare earth metals REM 0.03-0.05; molybdenum 1.0-1.5; boron 0.03-0.05; magnesium 0.03-0.05; antimony 0.03-0.05, the rest being iron.EFFECT : upgraded thermo resistance of iron.1 tbl