CAST IRON Russian patent published in 1994 - IPC

FIELD: metallurgy. SUBSTANCE: cast iron has the following composition, wt. -% : carbon 33.5-4.0; silicon 2.2-2.7; manganese 2.2-3.0; copper 0.1-0.2; aluminium 0.15-0.25; calcium 0.01-0.025; zinc 0.02-0.032; lithium 0.002-0.075; phosphorus 0.11-0.3; barium nitrides 0.035-0.05; magnesium 0.03-0.05; cerium 0.2-0.3; nickel 5.5-7.0, and iron - the rest. Cast iron is used in machine engineering. Positive effect: enhanced quality of articles made of cast iron proposed. EFFECT: enhanced strength of cast iron. 1 tbl