CAST IRON Russian patent published in 2009 - IPC C22C37/00 

FIELD: metallurgy.

SUBSTANCE: invention relates to metallurgy field, particularly to compositions of cast iron. Cast iron contains components at a following ratio, wt %: carbon 3.2-3.6, silicon 0.4-0.6, manganese 0.8-1.2, chromium 0.5-0.9, nickel 0.5-0.8, titanium 0.05-0.07, nitrogen 0.01-0.012, copper 0.4-0.6, tungsten 0.2-0.3, molybdenum 0.1-0.15, cerium 0.3-0.4, rhenium 0.8-1.0, iron - the rest.

EFFECT: increasing of torsional resistance of cast iron in conditions of higher temperatures.

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