CAST IRON Russian patent published in 2007 - IPC C22C37/10 

FIELD: ferrous metallurgy.

SUBSTANCE: invention relates to cast iron compositions. Proposed cast iron comprises components taken in the following ratio, wt.-%: carbon, 1.5-2.0; silicon, 0.3-0.5; manganese, .6-1.2; chrome, 22.0-26.0; molybdenum, 3.5-4.5; vanadium, 1.0-2.0; nickel, 3.5-4.5; copper, 0.3-0.8; niobium, 2.0-2.5; aluminum, 0.1-0.3; magnesium, 0.008-0.012, and iron, the balance. Using this invention provides enhancing thermal shock resistance and impact ductility.

EFFECT: improved and valuable properties of cast iron.

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