Light steel rails
GB (Guobiao) standards are Chinese national standards developed to ensure consistency, safety, and interchangeability across industrial products. GB standard steel rails define requirements for chemical composition, mechanical properties, dimensional tolerances, surface quality, and testing methods. GB rails are widely accepted in global markets due to their stable quality and cost efficiency.
Light steel rails typically refer to rails with lower unit weight per meter, generally ranging from 8kg/m to 30kg/m. These rails are designed for lighter loads, lower speeds, and shorter transportation distances. They are commonly used in mining railways, industrial plants, workshops, ports, and temporary rail systems.
steel rail
Rail Manufacturing Process
The production of a GB Standard 24kg rail involves multiple carefully controlled steps:
Steel Billet Preparation: Carbon steel billets are selected according to GB chemical composition standards (Q235B or 55Q).
Hot Rolling: The rail profile is formed through hot rolling, yielding a precise shape and uniform internal grain structure.
Cooling & Straightening: Post-rolling cooling processes help eliminate internal stresses, producing straight and dimensionally stable rails.
Cutting & Finishing: Rails are cut to specified lengths and prepared for transportation or welding.
Inspection & Testing: Every rail is inspected for dimensional accuracy, surface condition, and mechanical properties to ensure compliance.
Detailed Material Specifications
| Chemical Element | Typical Content |
|---|---|
| Carbon (C) | Controlled to balance strength and weldability |
| Low Alloying Elements | Ensures wear resistance |
| Consistent Tensile Strength | Provides load-bearing performance |
The combination of material grade and manufacturing precision ensures that GB 24kg rails maintain consistent strength, toughness, and service life even under heavy use.
Structural Advantages
Balanced Weight: 24kg/m provides excellent strength without unnecessary weight.
Good Wear Resistance: Especially when made with high-strength steel grades.
Consistent Quality: Tight dimensional tolerances ensure easy installation and accessory compatibility.
Flexibility: Can be cut, welded, or customized to fit curved, short, or complex track layouts.
Comparison with Other Rails
| Rail Type | Weight (kg/m) | Application Focus |
|---|---|---|
| Light Rail (18kg) | Lighter | Simple temporary tracks |
| GB 24kg Rail | 24.46 | Balanced industrial & mining use |
| Heavier Rail (>30kg) | Heavier | High load mainline tracks |
By combining sufficient strength with manageable weight, 24kg rails achieve both cost efficiency and service reliability, a key reason for their widespread adoption.
Weldability and Custom Installation
GB 24kg rails can be joined using standard welding techniques and adapted for custom track layouts, making them ideal for unique project requirements-from underground tunnels to outdoor industrial yards.
🔹 GNEE STEEL
At GNEE STEEL, we manufacture GB standard 24kg rails to meet strict quality and performance inspections. We also offer cutting, drilling, and customized length options to fit your specific project layout. Reach out for detailed technical support and quotations.
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 |
