The durability and non-failure operation of rails is defined by resistance to contact-fatigue
defects: shearing distortions, chips on the lateral sides of rail head, internal longitudinal and crosssection cracks and wear resistance in curved tracks under conditions of heavy traffic of freight and passenger trains. Reduction in traffic volume made service conditions of track bed structure of domestic railways more similar to service conditions characteristic for countries of Western Europe which predetermined the possibility of using European rails UIC60 instead of Р65 rails.UIC60 rails are used on the European railways with working capacity 50-70 million tons gross per 1 km of track per year and also on portions of line with increased motion speed.