Marin-one Medical
1 / 5
Rail shoulder is cast in the concrete rail ties to fix the elastic rail clips. There are two types of rail shoulders available, the cast-in shoulder and the weld-on shoulder, both of which are used for the fixing of elastic rail clips.
The casting shoulders as the embedded part of the railway fastening system are pressed in concrete sleeper and work together with the E clip to fasten the rail. The cast-in shoulder is made by casting from iron, such as GB/T 1348-1988, NF EN 1563(1997), ISO1038, DIN 1693, JIS G5502 (2001), KS D 4302, GOST 7293(1985) or BS EN 1563(1997).
| Property | UIC54 | UIC60 | Others (115RE, 50kg, 60kg, etc.) |
|---|---|---|---|
| Material Name | QT500-7 | QT450-10 | QT400-15 |
| Standard | GB 1348-88 | GB 1348-88 | GB 1348-89 |
| Tensile Strength | ≥500 Mpa | ≥450 Mpa | ≥400 Mpa |
| Yield Strength | ≥320 Mpa | ≥310 Mpa | ≥250 Mpa |
| Elongation | ≥7% | ≥10% | ≥15% |
The Rail shoulder is a semi-embedded part cast in the concrete rail ties to fix the elastic rail clip to the base plate. There are two common types available: Cast-in Shoulder and Weld-on Shoulder.
| Material | Tensile Strength (Mpa) | Yield Strength (Mpa) | Elongation (%) |
|---|---|---|---|
| QT400-15 (GGG40) | 400 | 250 | 15 |
| QT450-10 (GGG45) | 450 | 310 | 10 |
| QT500-7 (GGG50) | 500 | 320 | 7 |
The weld-on shoulder is used at typical positions where the rail shoulder is welded onto a flat steel plate rather than the standard tie plate. These are produced using hot forging methods according to AREA standards. Material types include low or medium carbon steel based on specific requirements.
These shoulders can be welded onto longer length steel sleeper sections or bearers, making them cost-effective for switch and crossing layouts where vertical rail geometry is employed.
