What Is 24kg steel rail?
The 24kg steel 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.
The performance and service life of a light steel rail depend not only on its weight but also on its structural design and manufacturing quality. GB Standard 24KG Light Steel Rail is engineered to provide reliable performance in light-load railway applications while maintaining excellent manufacturability and installation efficiency.
steel rail
Structural Design of 24KG Light Steel Rail
| Rail Section Part | Function |
|---|---|
| Rail Head | Bears wheel load and resists wear |
| Rail Web | Transfers load and absorbs stress |
| Rail Base | Ensures track stability and fastening |
The optimized head-to-base ratio of the 24kg rail ensures good load distribution while minimizing material consumption, making it suitable for industrial railways with frequent but moderate loads.
Dimensional Accuracy and Tolerances
| Item | GB Standard Requirement |
|---|---|
| Weight Deviation | ±2% |
| Length Tolerance | ±5 mm |
| Straightness | ≤1/1000 |
| Twist | ≤1/2000 |
Strict dimensional control ensures smooth rail installation and reduces vibration during operation.
Manufacturing Process Overview
Raw Material Selection
High-quality carbon steel billets are selected to meet GB chemical composition requirements.
Hot Rolling
Controlled rolling forms the precise rail profile and improves internal grain structure.
Cooling and Straightening
Proper cooling prevents residual stress and improves dimensional stability.
Inspection and Testing
Chemical analysis, mechanical testing, and dimensional checks ensure compliance.
Typical Chemical Composition
| Element | Content (%) |
|---|---|
| Carbon (C) | 0.50–0.60 |
| Manganese (Mn) | 0.60–0.90 |
| Silicon (Si) | ≤0.40 |
| Phosphorus (P) | ≤0.040 |
| Sulfur (S) | ≤0.040 |
This composition provides a balance between hardness, toughness, and weldability.
GNEE STEEL manufactures and supplies GB standard 24kg light steel rails with strict quality control at every stage. Full mill test certificates and third-party inspections are available, ensuring that each shipment meets international project requirements.
📩 Contact GNEE STEEL now for detailed technical data and customized rail solutions.
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 |
