Product Overview
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.
| Application |
UIC54 |
UIC60 |
115RE, 50kg rail, 60kg rail, BS80lbs, BS100lbs, ect. |
| Name |
QT500-7 |
QT450-10 |
QT400-15 |
| Standard |
GB 1348-88 |
GB 1348-88 |
GB 1348-89 |
| Chemical Composition |
C:3.60-3.80, Mn:0.2-0.5, Si:2.50-2.90, P:≤0.08, S:≤0.025 |
C:3.40-3.90, Mn:≤0.5, Si:2.70-3.00, P:≤0.07, S:≤0.03 |
C:3.50-3.60, Mn:≤0.5, Si:3.0-3.2, P:≤0.07, S:≤0.02 |
| Tensile Strength |
≥500 Mpa |
≥450 Mpa |
≥400 Mpa |
Classification of Rail Shoulders
The Rail shoulder is 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.
Cast-in Rail Shoulder
The casting shoulders are pressed into concrete sleepers as an embedded part of the railway fastening system. They are manufactured using iron casting processes according to international standards such as GB/T 1348-1988, NF EN 1563, ISO1038, DIN 1693, JIS G5502, and BS EN 1563.
Mechanical Property - 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 specific rail positions where the shoulder is welded onto flat steel plates rather than standard tie plates. Produced via hot forging, these are typically fabricated according to AREA standards using low or medium carbon steel.
Frequently Asked Questions
What is the primary function of a rail shoulder?
Rail shoulders are embedded in concrete sleepers or welded to steel plates to provide a secure anchoring point for elastic rail clips, ensuring the rail stays firmly in place.
What materials are used in the production of cast-in shoulders?
They are primarily made from ductile iron, including grades like QT400-15, QT450-10, and QT500-7, which offer high tensile strength and durability.
Which international standards do your rail shoulders meet?
The products follow several global standards including GB 1348-88, ISO1038, DIN 1693, JIS G5502, and BS EN 1563.
What are the advantages of weld-on rail shoulders?
Weld-on shoulders are highly cost-effective for switch and crossing layouts where specific positioning is required by design, allowing them to be welded directly onto steel sleeper sections.
What is the daily production capacity for these components?
The production facility is capable of producing up to 20,000 pieces per day to meet large-scale infrastructure demands.
What is the difference between single stem and twin stem iron shoulders?
Single stem iron shoulders are typically used in pre-stressed concrete ties, while twin stem versions are designed for Bi-Block or Twin Block concrete ties.
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