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鞍钢自1953年开始生产的钢轨是沿用苏联M62碳素钢。随着铁路运输日趋繁忙,车辆轴重、行车速度及货运强度不断增长,普通碳素钢轨在耐磨耗、耐压和疲劳性能等方面已不能满足铁路使用要求。为适应铁路运输发展的需要、改善钢轨的耐磨、耐压等使用性能,于1965年进行了中锰钢轨的试制、试铺。1966年开始进行大批量试生产,至今已生产了约500万吨,可铺设铁路约5万公里。中锰钢轨由于钢中锰含量增高为1.10～1.50%,提高了
The rails that Ansteel has been producing since 1953 are based on Soviet M62 carbon steel. With the increasingly busy railway transport, vehicle axle load, traffic speed and cargo strength continue to grow, ordinary carbon rail in the wear resistance, pressure and fatigue performance has been unable to meet the railway requirements. In order to meet the needs of the development of railway transport and improve the serviceability of the rail, such as wear resistance and pressure resistance, a trial production of medium manganese rail was carried out in 1965 and the shop trial was conducted. Large-scale pilot production started in 1966, and about 5 million tons have been produced to date, laying about 50,000 km of railways. Manganese rail as the manganese content in steel increased 1.10 ~ 1.50%, increased