CAST IRON Russian patent published in 2008 - IPC C22C37/10 

FIELD: ferrous metallurgy, in particular, gray iron compositions used in general mechanical engineering.

SUBSTANCE: cast iron composition contains, wt%: carbon 2.8-3.2; silicon 1.8-2.2; manganese 0.3-0.5; nickel 0.8-1.2; aluminum 0.1-0.2; molybdenum 0.8-1.2; vanadium 0.3-0.5; calcium 0.005-0.01; chromium 0.3-0.5; cerium 0.05-0.1; copper 0.4-0.8; magnesium 0.005-0.01; titanium diborides 0.1-0.2; yttrium 0.05-0.1; zirconium 0.1-0.2; niobium 0.1-0.2; cobalt 1.8-2.2; iron the balance.

EFFECT: increased strength of cast iron.

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