IRON

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FIELD : metallurgy.SUBSTANCE : invention refers to metallurgy, particularly to compositions of iron. Iron contains elements at a following ratio, mass % : carbon 3.0-3.5; silicon 2.0-2.5; manganese 0.5-1.0; chromium 0.5-1.0; copper 0.1-0.2; molybdenum 0.2-0.4; vanadium 0.2-0.4; REM (rare earth metals) 0.02-0.04; nickel 3.5-4.0; boron 0.1-0.2; magnesium 0.01-0.02; iron - the rest.EFFECT : upgraded scale and thermo resistance of iron.1 tbl