CAST IRON

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FIELD : ferrous metallurgy; composition of chromium cast iron; manufacture of parts for mud pumps.SUBSTANCE : proposed cast iron contains the following constituents, mass-% : carbon, 2.0-2.5; silicon, 0.5-1.0; manganese, 2.0-2.5; chromium, 20.0-25.0; rare-earth metals, 0.05-0.1; calcium, 0.005-0.01; vanadium, 0.5-1.0; nickel, 1.0-1.5; molybdenum, 1.0-1.5; titanium, 0.2-0.4; copper, 0.2-0.4; the remainder being iron.EFFECT : enhanced abrasive corrosion resistance.1 tbl