HIGH-STRENGTH BEARING STEEL Russian patent published in 2002 - IPC

FIELD: metallurgy; manufacture of parts for antifriction bearings working under conditions of contact loads and elevated temperatures. SUBSTANCE: high-strength bearing steel contains the following ingredients, mas.%: carbon, 0.7-0.8; silicon, 0.05-0.4; manganese, 0.05-0.4; chromium, 4.0-4.6; tungsten, 8.5-9.5; vanadium, 1.40-1.70; cerium, 0.005-0.10; calcium, 0.005-0.10; yttrium, 0.005-0.10; and iron, the balance. EFFECT: reduction of carbide heterogeneity; reduced sizes of carbides; reduction of anisotropy of plastic properties. 2 tbl