Among the railway track components, light rail has various specifications according to different usage scenarios, among which GB 8KG light rail has clear and unique specification parameters.
From the perspective of size parameters, its rail height is 65mm, bottom width reaches 54mm, head width is 25mm, and waist thickness is 7.0mm. These dimensions cooperate with each other, so that the 8KG light rail can meet specific transportation needs. The size setting of rail height and bottom width ensures the stability of the track and provides stable support for the operation of light locomotives; the parameters of head width and waist thickness affect the bearing capacity and wear resistance of the track, while bearing a certain weight, effectively reducing the loss caused by friction.
In terms of material, 8KG light rail mostly uses Q235B ordinary carbon structural steel. This type of steel has a mature smelting process and good comprehensive properties, such as certain strength and toughness, which can meet the requirements of laying temporary transportation lines and light locomotives in forest areas, mining areas, factories and construction sites. Moreover, its raw materials are widely available and relatively cheap, making the 8KG light rail more price-friendly.
| Q235B | Mechanical property | Chemical composition(%) | |||||||||
| Yield strength | Tensile strength | Elongation | Hardness | C | Si | Mn | S | P | |||
| MPa | kg/mm² | MPa | kg/mm² | min | HB | ≤ | ≤ | ≤ | |||
| ≥ | ≥ | ||||||||||
| 235 | 24 | 375-460 | 38-47 | 26% | 0.12-0.22 | 0.35 | 0.30-0.70 | 0.045 | 0.045 | ||
Theoretical weight is also an important indicator for measuring light rail specifications. The theoretical weight of GB 8KG light rail is 8.42kg/m. This weight is closely related to the size and material of the light rail. It not only ensures the stability of the track structure itself, but also does not increase the laying and use costs due to excessive weight. It is suitable for temporary or light transport line scenarios with certain restrictions on track weight.
Through comprehensive consideration of specification parameters such as size, material and theoretical weight, GB 8KG light rail plays an important role in the field of temporary transportation and light locomotive line laying with its specific specifications.