Abstract：Conditions of heavy haul railway transport at home and abroad indicated that heavy haul transport which is carried out, have greatly increased the railway transport capacity and declined the traffic cost.For all of countries in the world, axle load increasing is the main way to develop heavy haul transport.Along with the execution of railway heavy haul traffic and high speed, the wheels working environment become more and more harsh.The service condition and failure form of wheel in heavy haul transport are also described.Because of short process flow, simple production technology and low cost, cast steel wheel has a broad application prospect, which making up the short supply of rolled steel wheel and changed the frame of exclusive dealings of freight car wheel.Meanwhile, it plays an important role for improving the quality of rolled steel wheel as well.

Keyword：heavy haul railway;axle load;cast-steel wheel;rolled-steel wheel;