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 sleepers and work together with the E clip to fasten the rail.
| Material Parameter |
QT500-7 |
QT450-10 |
QT400-15 |
| Application |
UIC54 |
UIC60 |
115RE, 50kg, 60kg, BS80lbs, BS100lbs |
| 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
The rail shoulder is a semi-embedded part cast in concrete rail ties to fix the elastic rail clip to the base plate. We offer two common types: Cast-in Shoulder and Weld-on Shoulder.
1. Cast-in Rail Shoulder
Made by casting from iron according to international standards such as ISO1038, DIN 1693, JIS G5502, and BS EN 1563. These are pressed into concrete sleepers and work with E-clips.
| Material |
C (%) |
Si (%) |
Mn (%) |
P (%) |
S (%) |
| QT400-15 |
3.6-3.8 |
3.0-3.2 |
0.5 |
0.07 |
0.02 |
| QT450-10 |
3.4-3.9 |
2.7-3.0 |
0.5 |
0.07 |
0.03 |
| QT500-7 |
3.4-3.8 |
2.5-2.9 |
0.6 |
0.08 |
0.025 |
2. Weld-on Rail Shoulder
Used where the shoulder is welded onto flat steel plates rather than standard tie plates. These are produced using hot forging according to AREA standards. They can be welded onto longer steel sleeper sections or bearers, making them cost-effective for 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 base plate or concrete ties, ensuring the stability and safety of the railway track.
What are the main types of rail shoulders available?
There are two primary types: Cast-in shoulders (embedded in concrete sleepers) and Weld-on shoulders (welded onto steel plates or sleepers).
What materials are used for cast-in rail shoulders?
They are typically made from ductile iron such as QT400-15, QT450-10, or QT500-7, following international standards like ISO1038 and DIN 1693.
How are weld-on shoulders manufactured?
Weld-on shoulders are produced using a hot forging method and are usually fabricated according to AREA standards using low or medium carbon steel.
Which rail profiles are compatible with these shoulders?
They are compatible with various rail standards including UIC54, UIC60, 115RE, 50kg rail, 60kg rail, and BS80lbs/BS100lbs.
What is the daily production capacity for these rail accessories?
The production capacity is approximately 20,000 pieces per day to meet large-scale railway infrastructure demands.
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