CASTING STEEL Russian patent published in 1994 - IPC

FIELD: metallurgy. SUBSTANCE: steel containing carbon, silicon, manganese, nickel, chrome, molybdenum, vanadium, zirconium, iron has additionally titanium, boron and nitrogen at the following ratio of components, wt. -% : carbon 0.2-0.25; silicon 0.28-0.34; manganese 2.8-3.4; nickel 1-2; chrome 5-6; molybdenum 0.3-0.4; vanadium 0.2-0.3; zirconium 0.11-0.13; titanium 1.1-1.5; boron 0.25-0.35; nitrogen 0.01-0.02, and iron - the rest. Steel can be used for steel ingot production. EFFECT: enhanced strength and flowability of steel. 1 tbl