Steel Rail
When sourcing light steel rails for industrial or mining rail systems, buyers are often faced with an important question: Which rail standard and weight is the most suitable for my project? Among many options, GB Standard 24KG Light Steel Rail is frequently compared with other light rail specifications of similar weight under different standards.
What is GB Standard 24KG Light Steel Rail?
The 24kg mining rail adopts an I-shaped cross-section, featuring excellent bending resistance, which can effectively withstand the pressure and impact force from wheels. Its surface is smooth, straight after rolling, without significant bending or torsion, and the end face has no defects such as shrinkage marks or interlayers, ensuring the smoothness and safety of train operation.
A 24kg light steel rail refers to a rail profile weighing 24 kilograms per meter, manufactured according to Chinese GB railway standards. This standard specifies strict requirements for:
Cross-sectional dimensions
Chemical composition
Mechanical properties
Dimensional tolerances
GB standard rails are widely used in industrial railways, mining transportation systems, and factory internal logistics due to their stability and mature manufacturing process.
Material Characteristics
Common Materials: Mainly include Q235B, 55Q, etc.
Q235B features excellent toughness and weldability, adapting to various construction environments.
55Q offers higher strength and wear resistance, extending the rail's service life to a certain extent.
Manufacturing Process: Made of carbon steel smelted in open-hearth furnaces or oxygen converter furnaces, and rolled via hot-rolling technology, ensuring good mechanical properties and surface quality.
Dimensional Comparison: GB 24KG vs Similar Light Rails
| Parameter | GB 24KG Rail | 25kg Rail | 30kg Rail |
|---|---|---|---|
| Weight (kg/m) | 24 | 25 | 30 |
| Rail Height (mm) | ~107 | Slightly higher | ~108–110 |
| Head Width (mm) | ~51 | Wider | ~56 |
| Base Width (mm) | ~92 | Wider | ~108 |
| Typical Load | Medium | Medium | Medium–High |
Although the numerical difference between 24kg and 25kg rails appears small, their section profiles are not interchangeable in most cases. Differences in base width and head geometry may affect fastener compatibility and sleeper selection.
GB 24KG vs Heavier Light Rails: Avoiding Overdesign
| Item | 24kg Rail | 30kg Rail |
|---|---|---|
| Material Cost | Lower | Higher |
| Installation Labor | Easier | More complex |
| Required Fasteners | Lighter | Heavier |
| Suitable Speed | Low | Low–Medium |
In many industrial projects, heavier rails do not significantly improve operational performance but increase total project cost. For short-distance transport and controlled loads, GB 24kg rail offers a more economical and technically reasonable solution.
Standard System Advantages of GB Rails
GB standard light steel rails are known for:
- Stable supply chain
- High production consistency
- Wide accessory compatibility
- Flexible customization for export
These advantages make GB 24kg rails especially suitable for overseas industrial and mining projects.
As a professional railway material manufacturer and exporter, GNEE STEEL supplies GB standard 24kg light steel rails along with matching rail fasteners, fishplates, bolts, and sleepers. With extensive export experience, GNEE STEEL helps global buyers select the most suitable rail specification, reducing technical risks and overall procurement costs.
Light Rail Standard: GB/T 11264-2012
| Size
* |
Rail height(mm)
A |
Bottom Width(mm)
B |
Head Width(mm)
C |
Web Thickness(mm)
t |
Weight(kg/m)
* |
| 8kg | 65 | 54 | 25 | 7 | 8.42 |
| 9kg | 63.5 | 63.5 | 32.1 | 5.9 | 8.94 |
| 12kg | 69.85 | 69.85 | 38.1 | 7.54 | 12.2 |
| 15kg | 79.37 | 79.37 | 42.86 | 8.33 | 15.2 |
| 18kg | 90 | 80 | 40 | 10 | 18.06 |
| 22kg | 93.66 | 93.66 | 50.8 | 10.72 | 22.3 |
| 24kg | 107 | 92 | 51 | 10.9 | 24.46 |
| 30kg | 107.95 | 107.95 | 60.33 | 12.3 | 30.1 |
