| Parameter |
Description |
| Load - bearing Range |
Suitable for trains with relatively light axle loads, generally can bear trains with an axle load of less than 20 tons. |
| Wear Resistance |
Weaker wear resistance compared to heavier rails; prone to faster wear under high - frequency use. |
| Service Life |
Under normal maintenance, the service life is about 10 - 15 years. |
| Main Applications |
Some station tracks, freight - only lines, and railway branches with low traffic volumes. |
| Parameter |
Description |
| Load - bearing Range |
Can meet the daily operation requirements of conventional - speed railways, and can bear trains with an axle load of about 20 - 25 tons. |
| Wear Resistance |
Good wear resistance and excellent fatigue resistance, effectively reducing wear caused by long - term rolling. |
| Service Life |
Under normal working conditions, the service life is about 15 - 20 years. |
| Main Applications |
Railway main lines (accounting for over 90%), and some high - speed railway station tracks; suitable for both passenger and freight transport. |
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| Parameter |
Description |
| Load - bearing Range |
Specifically designed for heavy - haul railways, can bear trains with an axle load of more than 25 tons, even high - axle - load heavy - haul trains. |
| Wear Resistance |
Excellent wear resistance; low wear degree even under the frequent rolling of high - axle - load trains. |
| Service Life |
With proper maintenance, the service life can exceed 20 years. |
| Main Applications |
Heavy - haul railways, such as the Datong - Qinhuangdao Coal Transport Line. |
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