CAST IRON

摘要

FIELD: metallurgy.SUBSTANCE: cast iron contains, in wt %: carbon 3.8-4.2; silicon 1.8-2.2; manganese 0.15-0.25; yttrium 0.03-0.04; boron 0.2-0.3; nickel 0.2-0.3; iron is the rest.EFFECT: higher heat resistance of cast iron.1 tbl