CAST IRON

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FIELD : metallurgy.SUBSTANCE : invention relates to metallurgy field, particularly to compositions of cast iron. Cast iron contains components at a following ratio, wt % : carbon 2.8-3.2; silicon 0.4-0.7, manganese 0.8-1.2; chromium 0.4-0.6; titanium 0.1-0.15; aluminium 0.4-0.5; copper 4.4-4.6; rare earth elements 0.22-0.24; niobium 0.2-0.4; molybdenum 1.4-1.6; tin 0.015-0.02; iron - the rest.EFFECT : upgraded tensile strength of cast iron.1 tbl