GNEE RAILWAY RAILWAY Steel (Tianjin) Co., Ltd. is one of the most reliable manufacturers and suppliers of u71mn qu crane rails in China, also supports customized service with low price. Please feel free to buy cheap u71mn qu crane rails made in China here from our factory.
QU Crane Rails
Crane rail: It is low in height, with large head width and waist thickness. Only the chemical composition and tensile strength need to be tested. It is used to lay crane rails and trolley rails.
The trolley rail of the crane must be fixed on the travel beam, and the trolley rail is fixed on the main beam. When the crane is running, the rail cannot move horizontally and vertically, and the rail must be easy to adjust.
Crane rails include special rails, railway rails, square rails and P-type rails; square rails are more prone to wheel wear and are rarely used; most crane trolleys use P-type rails.

| Crane rail | Model/Material | U71MN | Specification | QU70kg/m | |||||
| QU80kg/m | |||||||||
| QU100kg/m | |||||||||
| QU120kg/m |
| Classification | Height(mm) | Head (mm) | Bottom (mm) | Thick(mm) | Weight (kg/m) | |
| Crance Rail | QU 70 | 120 | 70 | 120 | 28 | 52.8 |
| QU 80 | 130 | 80 | 130 | 32 | 63.69 | |
| QU 100 | 150 | 100 | 150 | 38 | 88.96 | |
| QU 120 | 170 | 120 | 170 | 44 | 118.1 | |
If you have special requirements for length or higher strength materials, please contact us for special custom production.
U71Mn Crane Rails
U71Mn, with its high strength and heavy load resistance, high wear and friction resistance, good weldability and easy installation, is perfectly adapted to the harsh working conditions of crane rails. It can not only ensure the safe operation of equipment but also reduce long-term maintenance costs. Therefore, it has become one of the preferred materials for crane rails.
1. High strength and toughness, withstanding heavy loads and impacts

High strength: U71Mn is a high-manganese, low-alloy rail steel with a tensile strength of 880-1080 MPa and a yield strength of ≥380 MPa, far exceeding that of ordinary carbon steel (such as Q235). During crane operation, rails must withstand the weight of the load, vertical loads from the movement of trolleys and cranes, and lateral impacts. The high strength of U71Mn effectively resists deformation and fracture.
2. High wear resistance, extending service life
Crane rails are subject to constant rolling and sliding friction from wheels (especially during starting and braking). The high wear resistance of U71Mn reduces rail head wear and block loss, extending rail replacement intervals and reducing maintenance costs.
3. Highly cost-effective and widely applicable to various crane applications

U71Mn rails achieve a balance of strength, toughness, and wear resistance through an optimized composition (high manganese and low alloying), eliminating the need for excessive addition of precious alloying elements (such as chromium and nickel). Their cost is lower than that of specialized wear-resistant rails.
U71Mn rails are suitable for use on various types of medium- and heavy-load crane tracks, including bridge cranes, gantry cranes, and port gantry cranes.
GNEE RAILWAY RAILWAY was founded in 2008 and has now developed into a comprehensive steel supply chain company. After years of development, the company has a production, procurement, operation, sales, and management team of more than 200 people, with a factory area of more than 35,000 square meters. The company's steel products are exported to more than 200 countries and regions around the world, and are widely used in railway tracks, automobile bearings, ship anchor chains, petrochemicals, marine engineering, nuclear power, wind power and other fields.




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