Detailed explanation of 50kg rail parameters
50kg rails are a type of heavy rail commonly used in railway construction. Their standard model is named after the weight of 50 kg per meter. This type of rail is mainly laid on the main railway line, bearing the weight of the train and the impact force during operation. Due to its excellent wear resistance and bending resistance, 50kg rails play an important role in railway transportation.
Specifications
- Rail height: usually 152 mm, this height design can provide good stability and load-bearing capacity.
- Rail bottom width: generally 132 mm, the bottom width is crucial to the lateral stability of the rail.
- Rail head width: the standard width is 70 mm, and the rail head part bears the direct pressure of the train wheelset.
- Rail waist thickness: usually 15.5 mm or more to ensure sufficient strength and rigidity.
- Length: The standard length of the rail is usually 12.5 meters, which is convenient for transportation and on-site laying.
Material and implementation standards
- Material: Common materials include high-quality carbon structural steel or low-alloy steel such as Q235 and 55Q to ensure strength and wear resistance.
- Implementation standards: Follow national standards such as GB/T2585-2021 "Hot-rolled Rails for Railways" to ensure product safety and interchangeability.
Railway rail models and parameter background
In addition to understanding the specific parameters of 50kg rails, it is also necessary to pay attention to the general models and parameter background of railway rails. Railway rails are classified by weight, and common models include 38kg/m, 43kg/m, 50kg/m, 60kg/m and 75kg/m. Rails of different weights are suitable for different railway lines and transportation needs. For example, light rails are mainly used in mining and forestry, while heavy rails are more used for high-speed and heavy-load railway trunk lines.
In addition, the parameters of railway rails also include geometric dimensions such as gauge, track direction, level, height and triangular pit, which have a crucial impact on the smoothness of the railway line and the stability of train operation. Therefore, when selecting the type of rail, in addition to considering its weight and strength, it is also necessary to comprehensively consider the specific conditions of the line and transportation requirements.
