CAST IRON Russian patent published in 1994 - IPC

FIELD: metallurgy. SUBSTANCE: cast iron has the following composition, wt. -% : carbon 2.5-4.3; silicon 0.8-2.6; manganese 1.5-2.0; aluminium 0.1-0.3; copper 1.2-1.6; titanium 0.3-0.5; vanadium 2.8-3.4; boron 0.5-0.9; phosphorus 0.2-1.0; nitrogen 0.05-0.07, and iron - the rest. Cast iron is used as structural material. Positive effect: prolonged period of exploitation of articles made of cast iron proposed. EFFECT: enhanced thermal stability and hardenability of cast iron. 1 tbl