CAST IRON Russian patent published in 2006 - IPC C22C37/10 

FIELD: metallurgy, in particular cast iron formulations for brake drums.

SUBSTANCE: claimed cast iron contains (mass %): carbon 3.4-3.9; silicium 1.2-1.7; manganese 0.7-1.0; chromium 0.4-0.6; nickel 0.02-0.2; copper 0.6-0.9; titanium 0.03-0.08; aluminum 0.01-0.05; zirconium 0.03-0.08; strontium 0.03-0.1; antimony 0.01-0.08 %; barium 0.01-0.05; calcium 0.01-0.05; sulfur at most 0.06; phosphorus at most 0.1 and balance: iron.

EFFECT: product of improved wear resistance, strength, heat conductivity and satisfied workability.

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