STEEL Russian patent published in 2008 - IPC C22C38/28 

FIELD: metallurgy.

SUBSTANCE: invention refers to iron and steel industry and can be implemented for fabrication of punches, and die molds for casting of brass. Steel contains, mass %: carbon 0.2-0.3; silicon 0.2-0.3; manganese 1.2-1.4; chromium 2.0-3.5; vanadium 0.6-0.8; titanium 0.08-1.0; molybdenum 1.2-1.4; niobium 0.08-0.12; copper 0.1-0.3; cerium 0.8-1.0; lanthanum carbide 0.05-1.0; zirconium boride 0.2-0.3; aluminium 0.01-0.02; beryllium carbide 0.8-1.2; iron - the rest. Hardness of steel (HRC) at temperature of 600°C is 52-54, bearing resistance is 0.1-0.12 mm.

EFFECT: upgraded hardness and bearing resistance of steel.

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