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.
| Parameters |
QT500-7 |
QT450-10 |
QT400-15 |
| Application |
UIC54 |
UIC60 |
115RE, 50kg, 60kg, BS80lbs, etc. |
| 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 |
Cast-in Rail Shoulder
The cast-in shoulder is made by casting from iron according to international standards such as GB/T 1348-1988, NF EN 1563, ISO1038, DIN 1693, JIS G5502, KS D 4302, GOST 7293, or BS EN 1563.
Chemical Composition Requirements (%):
- QT400-15: C: 3.6-3.6 | Si: 3.0-3.2 | Mn: 0.5 | P: 0.07 | S: 0.02
- QT450-10: C: 3.4-3.9 | Si: 3.7-3.0 | Mn: 0.5 | P: 0.07 | S: 0.03
- QT500-7: C: 3.4-3.8 | Si: 2.5-2.9 | Mn: 0.6 | P: 0.08 | S: 0.025
Weld-on Rail Shoulder
The weld-on shoulder is used where the rail shoulder is welded on flat steel plates rather than standard tie plates. These are produced using hot forging methods according to AREA standards. Material choices include low or medium carbon steel based on specific requirements. These are particularly cost-effective for switch and crossing layouts.
Frequently Asked Questions
What is a rail shoulder?
A rail shoulder is a component semi-embedded in concrete rail ties used to fix elastic rail clips to the base plate, ensuring stable rail fastening.
What are the main types of rail shoulders available?
The two primary types are Cast-in Shoulders (embedded in concrete sleepers) and Weld-on Shoulders (welded onto steel plates or sleepers).
What materials are typically used for cast-in shoulders?
They are generally made from cast iron, specifically ductile iron grades like QT500-7, QT450-10, and QT400-15.
What are the benefits of using weld-on shoulders?
Weld-on shoulders are highly versatile and cost-effective for specific layout designs, such as switch and crossing fabrications where vertical geometry is required.
Which standards do these rail shoulders comply with?
Our products comply with various international standards including GB/T 1348, ISO1038, DIN 1693, JIS G5502, and BS EN 1563.
Can rail shoulders be used with different rail weights?
Yes, they are compatible with various rail types including UIC54, UIC60, 115RE, 50kg, and 60kg rails.
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