CAST IRON

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FIELD : ferrous metallurgy, namely compositions of gray cast iron, possibly used in tractor machine engineering and in automobile making industry.SUBSTANCE : cast iron contains, mass % : carbon, 2.8 - 3.2; silicon, 0.8 - 1.2; manganese, 0.8 - 1.2; chrome, 0.3 - 0.8; titanium, 0.1 - 0.2; aluminum, 0.1 - 0.2; copper, 0.3 - 0.5; rare earth elements, 0.1 - 0.2; niobium, 0.8 - 1.2; cobalt, 0.8 - 1.2; nitrogen, 0.1 - 0.2; vanadium, 0.8 - 1.2; iron, the balance.EFFECT : improved strength of cast iron.1 tbl