STEEL Russian patent published in 2012 - IPC C22C38/46 

FIELD: metallurgy.

SUBSTANCE: steel contains carbon, manganese, silica, vanadium, nitrogen, chrome, aluminium, nickel, iron and impurities at the following component ratio, wt %: carbon of more than 0.60 to 0.75, manganese 0.70 - 1.10, silica of more than 0.39 to 0.60, chrome 0.20 - 0.60, aluminium to less than 0.003, vanadium of more than 0.07 to 0.15, nitrogen of more than 0.015 to 0.020, nickel 0.03 - 0.20, iron and impurities are the rest. As impurities the steel includes sulphur of not more than 0.020%, phosphorus of not more than 0.025%, and copper of not more than 0.15%.

EFFECT: improving physical and mechanical properties and service durability of counter rail angles.

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