38KG heavy rails play an important role in many fields with their moderate weight, reasonable specifications and good material properties, and have become a common material for railway construction and related industries.
38KG heavy rails are widely used in the construction of local railways and railway branches. Such lines usually have relatively small traffic volumes, and the train running speed is also lower than that of trunk railways, and the requirements for track bearing capacity are moderate. The nominal weight of 38KG heavy rails is 38.733kg per meter, which can not only meet the load requirements of daily train operation, but also will not significantly increase the construction cost due to excessive weight. For example, in some branch lines connecting towns and mining areas around cities with major railway trunk lines, the use of 38KG heavy rails to lay tracks can effectively reduce construction costs while ensuring the stability and safety of branch line transportation.
| Rail Type | SIZE(mm) | theoretical weight | |||||||||
| height | bottom width | head width | waist depth | ||||||||
| Heavy rail | 38KG | 134 | 114 | 68 | 13 | 38.733 | |||||
| 43KG | 140 | 114 | 70 | 14.5 | 44.653 | ||||||
| 45KG | 145 | 126 | 67 | 14.5 | 45.546 | ||||||
| 50KG | 152 | 132 | 70 | 15.5 | 51.514 | ||||||
| 60KG | 176 | 150 | 73 | 16.5 | 60.64 | ||||||
Factory and mine railways are also one of the main application scenarios of 38KG heavy rails. Inside factories and mines, the load capacity and running speed of transport vehicles are limited. The 38KG heavy rails are designed with dimensions such as rail height, bottom width, and head width, which can provide stable running tracks for transport vehicles inside factories and mines. The structure with a rail height of 134mm and a bottom width of 114mm can evenly distribute the vehicle load and ensure the long-term stability of the track; the head width of 68mm is well adapted to the vehicle wheels to reduce wear. In factories and mines such as coal mines and steel mills, the internal transport tracks use 38KG heavy rails, which can meet the frequent material transportation needs and have relatively low maintenance costs.

In addition, 38KG heavy rails are also commonly used for some temporary construction tracks and light special tracks. In temporary transport routes for railway construction, bridge construction and other projects, 38KG heavy rails are easy to install and disassemble, and their moderate weight allows construction workers to carry and lay them more easily. In some light special track projects such as small railway projects and scenic sightseeing railways, the performance of 38KG heavy rails is sufficient to meet operational requirements, and its lower cost also meets the project budget constraints.

The 38KG heavy rail, with its own characteristics, demonstrates its practical value in a variety of scenarios and provides a reliable rail solution for transportation needs in different fields.

