In the huge system of railway transportation, GB heavy rail plays an extremely critical role. Heavy rail usually refers to steel rails with a weight of more than 30 kilograms per meter. There are many types of heavy rails, and the common ones are 38kg/m, 43kg/m, 50kg/m and 60kg/m,75kg/m. GB heavy rails produced according to GB/T 2585 standard are widely used in various important rail scenarios.
| SIZE(mm) | theoretical weight | ||||||||
| height | bottom width | head width | waist depth | ||||||
| 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 | ||||
| 75KG | 192mm | 165mm | 75mm | 20mm | 74.41 | ||||
1. The mainstay of railway trunk lines
GB heavy rails are the core choice for track laying in inter-regional railways, inter-city railways and urban railways. Take my country's busy high-speed railway lines as an example, such as the Beijing-Shanghai high-speed railway, which carries a large number of high-speed trains every day. The 60kg/m GB heavy rail can easily withstand the huge pressure and high-frequency impact brought by high-speed trains with its strong pressure resistance and excellent stability. This not only ensures the smooth and safe operation of trains, but also greatly extends the service life of the track and reduces the maintenance cost and frequency.
II. Reliable guarantee of urban rail transit
The subway system in urban rail transit also cannot do without the support of GB heavy rail. Subway trains frequently start and stop, which requires extremely high strength and wear resistance of the track. GB heavy rail can effectively cope with such complex operating conditions and provide a solid foundation for the efficient and safe operation of the subway. For example, the subway networks in large cities such as Beijing and Shanghai have laid a large number of GB heavy rails, supporting tens of millions of passenger flows every day and ensuring the smooth operation of urban transportation.
III. Application expansion of special scenarios
In addition to conventional railway transportation, GB heavy rails also play an important role in some special scenarios. In mine tunnels, due to the large load of transport vehicles and the complex operating environment, high-strength track support is required. GB heavy rails can meet this demand and ensure the efficiency and safety of ore transportation. In addition, in the internal transportation tracks of large factory workshops, GB heavy rails also provide stable and reliable operating tracks for material transportation due to their excellent load-bearing capacity.
In short, GB heavy rail has become an indispensable key material for railway transportation and related fields due to its excellent performance, and has made solid contributions to the development of modern transportation.