Gnee Steel (Tianjin) Co., Ltd. is one of the most reliable manufacturers and suppliers of 75kg railway track heavy rail in China, also supports customized service with low price. Please feel free to buy cheap 75kg railway track heavy rail made in China here from our factory.

Product Introduction

75kg heavy rail is a heavy steel rail used for railway tracks, usually made of high carbon steel, such as U71Mn, U75V, etc. These materials have high strength, hardness and wear resistance, and can withstand the pressure, impact load and friction caused by the heavy load and high-speed operation of the train. Alloy elements in steel, such as manganese (Mn) and vanadium (V), help improve the performance of steel. For example, manganese can enhance the strength and toughness of steel, and vanadium can refine the grains and improve the strength and wear resistance of steel.

Axle weight advantage: It can stably carry freight trains with axle weights of 30 tons or more (such as coal trains on the Daqin Railway). The single track has a load-bearing capacity of 75kg per meter. Combined with the sleeper and ballast structure, it can disperse the vertical pressure of the train on the track to prevent the track from being dented or broken due to heavy load.

Dynamic load adaptation: In the face of the instantaneous impact force generated when the train starts, brakes or changes speed, the elastic deformation capacity of high-carbon steel material can buffer load fluctuations and reduce track damage.

light rail

Heat treatment process: The surface of the rail head is quenched to form a wear-resistant martensite layer (hardness of 330-380HB), which can resist the wear caused by long-term rolling of train wheels. The wear rate is 30%-50% lower than that of ordinary rails, extending the rail replacement cycle (the life of ordinary rails is about 10-15 years, and 75kg heavy rails can reach more than 20 years).

Anti-stripping ability: The high-hardness surface reduces metal adhesion and peeling between the wheel and the rail surface, which is especially suitable for curved tracks (where lateral friction is high when trains pass), reducing the risk of surface defects such as "fish scales".

Product Specifications

75kg rail

Product Application

Freight lines: such as the domestic Daqin Railway, Shuohuang Railway and other "West Coal East Transport" trunk lines, with an annual transportation volume of over 400 million tons, 75kg heavy rails are a rigid configuration to ensure large transportation volume and long life.

Mine/port railways: undertake heavy-load transportation of ore, containers, etc., and need to withstand long-term crushing by overweight vehicles. The wear resistance of 75kg heavy rails can greatly reduce the frequency of rail replacement (for example, the rail replacement cycle of mine railways can be extended from 5 years to 15 years).

heavy load rail