CORROSION-RESISTANT STEEL Russian patent published in 2002 - IPC

FIELD: metallurgy, particularly, composition of steel used, for instance, in manufacture of molds components for die casting of aluminum alloys. SUBSTANCE: corrosion-resistant steel has the following ratio of components, wt.%: carbon, 0.17-0.22; silicon, 0.40-0.60; manganese, 0.30-0.50; chromium, 9.00-11.00; vanadium, 0.80-1.10; nitrogen, 0.10-0.15; aluminum, 0.70-1.00; boron, 0.075-0.10; cerium, 0.05-0.075; iron, the balance. EFFECT: higher heat stability and heat resistance of steel used for manufacture of parts operating under conditions of thermocyclic effect at temperature up to 700 C. 2 tbl