GNEE RAILWAY RAILWAY Steel (Tianjin) Co., Ltd. is one of the most reliable manufacturers and suppliers of 60Si2CrA Spring Steel Rail Clips: Material Properties and Fastener Use in China, also supports customized service with low price. Please feel free to buy cheap 60Si2CrA Spring Steel Rail Clips: Material Properties and Fastener Use made in China here from our factory.
The Role of Spring Clips
In an elastic rail fastening system, spring bars (clips) provide the clamping pressure: through elastic deformation they hold the rail firmly on the sleeper, prevent loosening or shifting during train operation, and absorb part of the vibration and impact energy - buffering the track structure and extending the service life of its components.
60Si2CrA: Chromium-Silicon Spring Steel
60Si2CrA is a chromium-silicon spring steel specified in GB/T 1222, widely used for rail fastening clips where higher hardenability and fatigue performance are needed:
- Composition (approx.): C 0.56-0.64%, Si 1.40-1.80%, Mn 0.40-0.70%, Cr 0.70-1.00%.
- Mechanical properties after quenching and medium-temperature tempering (per GB/T 1222, typical): tensile strength ~1800-1860 MPa; yield strength ~1600-1665 MPa; elongation ≥6%; reduction of area ≥20%.
- Advantage over 60Si2MnA: the chromium addition improves hardenability, temper resistance and fatigue life - the clip holds its clamping pressure through millions of load cycles.
Clip-Type Fastening without Bolts and Shoulders
FC-type elastic split fasteners clamp the rail through the toe insulator without bolts and shoulders, reducing component count and maintenance cost while improving track integrity. The spring clip's elastic fastening pressure maintains a reliable rail-to-sleeper connection and buffers vibration.
Material and Specification Options
| Item | Value |
|---|---|
| Item name | Railway rail fastening system |
| Usage | Rail fastening |
| Material | 38Si7, 60Si2MnA, 60Si2CrA, 55Si2Mn |
| Surface treatment | Bluing, plain oiling, color painting |
Quality Assurance
GNEE RAILWAY RAILWAY manufactures rail clips under an ISO 9001 quality management system, with dimensional accuracy and mechanical properties inspected before shipment. Typical spring clip hardness is 42–47 HRC, with the final hardness range confirmed according to the applicable drawing or technical specification. GNEE RAILWAY RAILWAY supplies rail clips for railway projects in Southeast Asia, the Middle East, Africa, and other international markets.
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