RAIL STEEL WITH EXCELLENT COMBINATION OF CHARACTERISTICS OF WEAR RESISTANCE AND FATIGUE STRENGTH AT ROLLING CONTACT Russian patent published in 2012 - IPC C22C38/24 C22C38/12 E01B5/02 

FIELD: metallurgy.

SUBSTANCE: steel contains the following, wt %: carbon 0.88 to 0.95, silicon 0.75 to 0.95, manganese 0.80 to 0.95, vanadium 0.05 to 0.14, nitrogen up to 0.008, phosphate up to 0.030, sulphur 0.008 to 0.030, hydrogen - not more than 2.5 ppm, chrome - not more than 0.10, aluminium - not more than 0.010, oxygen - not more than 20 ppm, iron and inevitable impurities are the rest.

EFFECT: steel has improved combination of characteristics of wear resistance and fatigue strength at rolling contact.

9 cl, 2 dwg, 2 tbl