Nipa Orthopedic Implants
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.
| Specifications | QT500-7 | QT450-10 | QT400-15 |
|---|---|---|---|
| Application | UIC54 | UIC60 | 115RE, 50kg rail, 60kg rail, BS80lbs, BS100lbs |
| Standard | GB 1348-88 | GB 1348-88 | GB 1348-89 |
| Chemical C (%) | 3.60-3.80 | 3.40-3.90 | 3.50-3.60 |
| Chemical Si (%) | 2.50-2.90 | 2.70-3.00 | 3.0-3.2 |
| Tensile Strength | ≥500 Mpa | ≥450 Mpa | ≥400 Mpa |
| Hardness | 170~230HB | 160~210HB | 130~180HB |
The Rail shoulder is a semi-embedded part cast in the concrete rail ties to fix the elastic rail clip to the base plate. We offer two common types:
| 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 fabricated using hot forging according to AREA standards. The steel material can be low or medium carbon steel, providing flexibility for specific layouts such as switch and crossing fabrications.
