Basic Specifications
Model NO.
QT500-7 Rail Shoulder
Certification
ISO14001, ISO9001
Transport Package
Cartons, Woven-Bags or Gunny-Bags in Wooden Cases
Production Capacity
20000PCS/Day
Product Description
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).
| Parameter |
Specification A |
Specification B |
Specification C |
| Application | UIC54 | UIC60 | 115RE, 50kg, 60kg, BS80lbs, BS100lbs |
| 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 |
| Hardness | 170~230HB | 160~210HB | 130~180HB |
Types of Rail Shoulder Produced
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 of rail shoulders available: Cast-in Shoulder and Weld-on Shoulder. One is the Single Stem Iron Shoulder used in pre-stressed concrete ties, and the other is the Twin Stem Iron Shoulder used in Bi-Block or Twin Block concrete ties.
Cast-in Rail Shoulder
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.
| 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 |
Weld-on Rail Shoulder
The weld-on shoulder is used at the typical position of rail where the rail shoulder is welded on a flat steel plate rather than the standard tie plate. The production method is hot forging, fabricated according to AREA standards. The steel material type can be low or medium carbon steel, varying with specific requirements.
Note: Rail cast iron shoulders can be welded onto longer length steel sleeper sections or bearers for locations where vertical rail geometry is employed in switch and crossing layouts.
Frequently Asked Questions
What is the primary function of a rail shoulder?
The rail shoulder is used to fix elastic rail clips to the rail ties or base plates, ensuring the stability and safety of the railway fastening system.
What are the main differences between cast-in and weld-on shoulders?
Cast-in shoulders are embedded directly into concrete sleepers during manufacturing, while weld-on shoulders are welded onto flat steel plates or steel sleepers for specific layout requirements.
What materials are typically used for QT500-7 rail shoulders?
They are primarily made from ductile iron (nodular cast iron), which provides high tensile strength (≥500 Mpa) and excellent durability.
Can these shoulders be customized for different rail types?
Yes, we provide customization for various rail standards including UIC54, UIC60, 115RE, and various kg/m rail specifications.
What international standards do your rail shoulders comply with?
Our products are manufactured according to standards such as GB/T 1348, ISO1038, DIN 1693, JIS G5502, and BS EN 1563.
What is the daily production capacity for these rail components?
The current production capacity is approximately 20,000 pieces per day, ensuring timely delivery for large-scale infrastructure projects.
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