1 / 5
Horaizon Orthopedic Implants
Horaizon Orthopedic Implants
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 essential components for the stable fixing of elastic rail clips.
The casting shoulders, as an embedded part of the railway fastening system, are pressed into concrete sleepers and work together with E-clips to fasten the rail securely.
| Parameter | UIC54 | UIC60 | Other Rails |
|---|---|---|---|
| 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 |
| Hardness | 170~230HB | 160~210HB | 130~180HB |
The rail shoulder is a semi-embedded part cast in concrete rail ties to fix the elastic rail clip to the base plate. There are two common variations:
| 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 where the rail shoulder is welded on flat steel plate rather than the standard tie plate. Manufactured via hot forging according to AREA standards, these use low or medium carbon steel. These are particularly cost-effective for switch and crossing layouts where vertical rail geometry is required.
The primary function of a rail shoulder is to be cast into or welded onto the rail ties/plates to provide a secure anchoring point for elastic rail clips, ensuring the rail remains fixed to the sleeper.
Cast-in shoulders are embedded directly into concrete sleepers during manufacturing. Weld-on shoulders are forged and then welded onto flat steel plates or specialized steel sleeper sections.
Cast-in shoulders are typically made from ductile iron grades such as QT400-15, QT450-10, and QT500-7, which offer high tensile strength and durability.
They are manufactured according to international standards including GB/T 1348, ISO1038, DIN 1693, JIS G5502, and BS EN 1563.
Weld-on shoulders are ideal for locations requiring switch and crossing layouts where rail geometry is specialized, offering a cost-effective and flexible fabrication method.
The standard production capacity is approximately 20,000 pieces per day to ensure a steady supply for large-scale railway projects.
