EVRAZ subsidiary Nizhny Tagil Metallurgical Plant (NTMK) states that it has become the first Russian company to master the production technology for extra-hard railway wheels. The wheels of 350-390 Brinell units of hardness are designed and suitable for the use on arterial railways. Once the certification of an experimental batch of new goods in overseas markets has been completed, the construction of the order book will begin.
Specialists from Nizhny Tagil Metallurgical Plant and the All-Russian Scientific Research Institute of Railway Transport took part in the research and development of the production technology for extra-hard wheels. Special attention was paid to the steel chemical compound used, the heating temperature of work pieces and the cool-down rate of wheels which allowed for the discovery of an optimum chemical compound for steel with high concentration of carbon and alloying elements.