STEEL Russian patent published in 1995 - IPC

FIELD: metallurgy. SUBSTANCE: steel has, wt. -%: carbon 0.50-0.62; manganese 0.42-0.82; silicon 0.8-1.8; chrome 1.1-1.4; molybdenum 0.15-0.60; aluminium 0.02-0.15; titanium 0.02-0.12, and iron - the rest. Steel can contain additionally nickel up to 2.4 wt.-%; if nickel content is 1.65-2.0 wt. -% then molybdenum content must be 0.35-0.60 wt.-%. Silicon content can be 1.1-1.4 wt.-%. Steel can contain also cerium at the range up to 0.02 wt. -%. EFFECT: enhanced quality of steel. 5 cl, 1 dwg, 3 tbl