A steel rail is a hot-rolled steel bar with a specific I-shaped profile used as the main component of railway tracks and overhead cranes to guide steel wheels, bear pressure, and provide a smooth, stable rolling surface for vehicles.
In Terms of Core Purpose and Rail Model
Crane Rails: Specifically designed for lifting equipment such as overhead cranes, gantry cranes, and tower cranes, with core requirements of "heavy load bearing + precise guidance". The commonly used rails are QU-type special rails for cranes (e.g., QU70, QU80, QU100, QU120).
Train Rails: Serve ordinary-speed/high-speed trains and freight trains, requiring a balance of "high-speed operation + long-distance smoothness". The commonly used rails include heavy railway rails (e.g., 50kg/m, 60kg/m, 75kg/m) and light rails (e.g., 30kg/m). For example, a 300t gantry crane in a port requires QU120 rails, while passenger dedicated lines mostly use 60kg/m or 75kg/m heavy railway rails.
In Terms of Rail Cross-Section Design and Load-Bearing Characteristics
Crane Rails: Adopt a special "wider top and narrower bottom" cross-section. They have a wider rail head (e.g., the rail head width of QU120 is 120mm, while that of a 60kg/m train heavy rail is only 73mm) and a thicker rail web (the rail web thickness of QU120 is 44mm, while that of a 60kg/m heavy rail is 16.5mm), which can disperse the ultra-large wheel load of lifting equipment.
| Rail Type | SIZE(mm) | theoretical weight | |||||||||
| height | bottom width | head width | waist depth | ||||||||
| Crane rail | QU70 | 120 | 120 | 70 | 28 | 52.8 | |||||
| QU80 | 130 | 130 | 80 | 32 | 63.69 | ||||||
| QU100 | 150 | 150 | 100 | 38 | 88.96 | ||||||
| QU120 | 170 | 170 | 120 | 44 | 118.1 | ||||||
Train Rails: Feature a "symmetrical I-shaped" cross-section, focusing on reducing train operation resistance. The arc-shaped design of the rail head is adapted to the wheel tread, and seamless welding (using rail flash welding machines) is applied to reduce joint impact and improve high-speed smoothness.
| Classification | Height(mm) | Head (mm) | Bottom (mm) | Thick(mm) | Weight (kg/m) | |
| Light Rail | 8 KG/M | 65 | 25 | 54 | 7 | 8.42 |
| 9 KG/M | 63.5 | 32.1 | 63.5 | 5.9 | 8.94 | |
| 12 KG/M | 69.85 | 38.1 | 69.85 | 7.54 | 12.2 | |
| 15 KG/M | 79.37 | 42.86 | 79.37 | 8.33 | 15.2 | |
| 18 KG/M | 80 | 40 | 80 | 10 | 18.06 | |
| 22 KG/M | 93.66 | 50.8 | 93.66 | 10.72 | 22.3 | |
| 24 KG/M | 107 | 51 | 90 | 10.9 | 24.46 | |
| 30 KG/M | 107.95 | 60.33 | 107.95 | 12.3 | 30.1 | |
| Heavy Rail | 38 KG/M | 134 | 68 | 114 | 13 | 38.733 |
| 43 KG/M | 140 | 70 | 114 | 14.5 | 44.653 | |
| 45 KG/M | 145 | 67 | 126 | 14.5 | 45.546 | |
| 50 KG/M | 152 | 70 | 132 | 15.5 | 51.514 | |
| 60 KG/M | 176 | 73 | 150 | 16.5 | 60.64 | |
As a professional rail fastener supplier, GNEE RAIL can provide different standard steel rail such as American, BS, UIC, DIN, JIS, Australian and South Africa which used in railway lines, cranes and coal mining.Click here to obtain the detailed product catalog of GNEE RAIL.
