STEEL Russian patent published in 2008 - IPC C22C38/58 

FIELD: ferrous metallurgy industry; coal-mining industry; other industries; production of the steel intended for manufacture of the grinding bodies used in the mills for the coal grinding.

SUBSTANCE: the invention presents the steel of the following composition (in mass %): carbon - 0.4-0.6, silicon - 0.4-0.6, manganese - 1.5-2.0, chromium - 1.5-2.5, nickel - 0.5-1.0, vanadium - 0.1-0.3, phosphorus - 0.5-0.15, boron - 0.05-0.15, titanium - 0.5-1.0, zirconium - 0.3-0.5, nitrogen - 0.05-0.15, iron - the rest. The invention allows to increase the wear capacity of the steel.

EFFECT: the invention ensures the increased wear resistance of the steel.

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