Basic Information
Model NO.
QT450-10 QT500-7 Embedded 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 rail way 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).
| Specification |
UIC54 |
UIC60 |
Standard Rail |
| Application |
UIC54 |
UIC60 |
115RE, 50kg rail, 60kg rail, BS80lbs, BS100lbs, ect. |
| Grade |
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 |
| 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.
Mechanical Properties (Cast-in Rail 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 |
Weld-on Rail Shoulder
The weld-on shoulder is used at typical positions where the rail shoulder is welded onto a flat steel plate rather than a 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. These shoulders can be welded onto longer length steel sleeper sections or bearers, particularly useful for switch and crossing layouts where vertical rail geometry is employed.
Frequently Asked Questions
What are the primary functions of a rail shoulder?
Rail shoulders are designed to be embedded in concrete sleepers or welded onto steel plates to secure elastic rail clips, ensuring the rail remains stable and correctly aligned within the fastening system.
What materials are typically used for cast-in rail shoulders?
They are generally manufactured from ductile iron, including grades like QT400-15 (GGG40), QT450-10 (GGG45), and QT500-7 (GGG50), following international standards such as ISO 1038 and DIN 1693.
How does a weld-on shoulder differ from a cast-in shoulder?
Cast-in shoulders are embedded directly into concrete sleepers during casting, while weld-on shoulders are forged from carbon steel and welded onto flat steel plates or sections, offering flexibility for custom layouts like switches and crossings.
Can you provide customized rail shoulders?
Yes, rail shoulders can be customized according to specific drawings, material requirements, and technical standards to fit various rail types such as UIC54, UIC60, and 115RE.
What is the daily production capacity for these components?
The production facility maintains a high capacity of approximately 20,000 pieces per day to meet large-scale railway infrastructure demands.
What quality certifications do your products hold?
The production processes and products are certified under ISO9001 and ISO14001, ensuring consistent quality management and environmental standards.
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