CAST IRON

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FIELD : metallurgy.SUBSTANCE : invention concerns metallurgy field. Particularly it concerns cast iron content. Cast iron contents components at a following ratio, mass % : carbon 2.4-2.8; silicon 0.8-1.2; manganese 0.8-1.2; chrome 10.0-15.0; vanadium 0.4-0.8; rare-earth metals 0.05-0.1; nickel 0.5-1.0; titanium 0.1-0.2; zirconium 0.1-0.2; aluminium 0.2-0.3; molybdenum 1.0-2.0; nitrogen 0.01-0.02; cobalt 1.0-2.0; iron - the rest.EFFECT : improving of cast iron crack resistance.1 tbl