CORROSION RESISTANT STEEL Russian patent published in 1997 - IPC

FIELD: metallurgy, particularly, composition of corrosion resistant steel used for manufacturing of critical units which are used in machine building and operate in aggressive mediums. SUBSTANCE: corrosion resistant steel comprising carbon, silicium, manganese, chromium, sulfur, phosphorous and ferrum additionally comprises germanium and vanadium. Steel comprises, mas. %: carbon, 0.12-0.63; silicium, 0.21-0.38; manganese, 0.38-0.46; chromium, 14.0-16.5; germanium, 0.60-1.50; vanadium, 0.15-0.25; sulfur, 0.015-0.025; phosphorous, 0.015-0.025 and ferrum, the balance. EFFECT: improved quality. 3 tbl