The rail shoulder refers to the load-bearing area on either side of the rail base (foot) where it contacts the rail seat (bearing surface of the sleeper or fastening system). It plays a critical role in distributing forces from the rail to the sleeper and maintaining track stability.
Primary Functions
- Load Transfer
Distributes vertical and lateral forces from the rail to the sleeper, reducing localized stress.
- Lateral Stability
Works with fasteners (e.g., Pandrol clips, Nabla plates) to prevent rail movement and maintain gauge (standard: 1435mm).
- Vibration Damping
Helps absorb dynamic impacts (e.g., wheel-rail interaction) when combined with resilient pads.
Product Description
|
Application |
UIC54 |
UIC60 |
115RE, ,50kg rail, 60kg rail, BS80lbs, BS100lbs, ect. |
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|
Name |
QT500-7 |
QT450-10 |
QT400-15 |
|
|
Standard |
GB 1348-88 |
GB 1348-88 |
GB 1348-89 |
|
|
Chemical composition(%) |
C:3.60-3.80 |
C:3.40-3.90 |
C:3.50-3.60 |
|
|
C:3.60-3.80 |
Mn:0.2-0.5 |
Mn:≤0.5 |
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|
Si:2.50-2.90 |
Si:2.70-3.00 |
Si:3.0-3.2 |
||
|
P:≤0.08 |
P:≤0.07 |
P:≤0.07 |
||
|
S:≤0.025 |
S:≤0.03 |
S:≤0.02 |
||
|
Tensile |
≥500 Mpa |
≥450 Mpa |
≥400 Mpa |
|
|
Yield |
≥320 Mpa |
≥310 Mpa |
≥250 Mpa |
|
|
Elongation(%) |
≥7 |
≥10 |
≥15 |
|
|
Hardness |
170~230HB |
160~210HB |
130~180HB |
|
|
Metallographic organization |
ferrite & pearlite |
graphite & ferrite & pearlite |
ferrite |
|
Track Components
Used to fix and connect rails and sleepers, ensuring track stability:
Fastening System: Such as spring clips, bolted fasteners, used to secure rails to sleepers.
Rail Pads: Reduce friction and vibration between rails and sleepers.
Fishplate (Joint Bar): Connects two rail ends at joints.
Rail Spike / Anchor Bolts: Fixes rails or sleepers in place.
Track Gauge Rod: Maintains standard rail gauge (1435mm).
GNEE, trusted rail shoulder manufacturer
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