HEAT-RESISTANT STEEL Russian patent published in 1998 - IPC

FIELD: metallurgical industry, more particularly manufacture of heat-resistant steel. SUBSTANCE: claimed steel comprises the following components (wt %): 0.30-0.50 carbon; 0.40-1.50 silicon; 12.0-20.0 manganese; 0.50-4.0 nickel; 0.50-3.0 copper; 20.0-30.0 chromium; 1.0-3.0 aluminium; 0.02-0.50 titanium; 0.05-0.50 molybdenum; 0.05-0.30 vanadium; 0.02- 0.50 niobium; 0.001-0.20 rare earth metals; and the iron balance. EFFECT: composition of heat-resistant steel having new physico-chemical properties, higher service ability of heat-resistant components. 6 cl, 1 ex, 2 tbl