Rail clips are typically made of forged spring steel, such as grades like 60Si2MnA or 55SiCr7. These materials are chosen for their high elasticity and fatigue resistance, and are processed through hot forging, followed by heat treatment like quenching and tempering, to enhance their strength and durability.
Spring steel: This is the primary material for rail clips due to its ability to return to its original shape after being bent or stressed.Specific grades: Common spring steel grades used include 60Si2MnA, 55Si2Mn, 60Si2CrA, 55Si7, 55SiCr7, and 38Si7.
| Material | 60Si2MnA | 60Si2CrA | 55Si2Mn | 38Si7 |
| Chemical composition(%) | C:0.56-0.64, Mn:0.60-0.90, Si:1.60-2.00, Cr:≤0.35, P:≤0.03, S:≤0.03 | C:0.56-0.64, Mn:0.40-0.70, Si:1.40-1.80,Cr:0.70-1.00 P:≤0.03, S:≤0.03 | C:0.52-0.60, Mn:0.60-0.90, Si:1.50-2.00,Cr:≤0.35 P:≤0.03, S:≤0.03 | C:0.35-0.42, Mn:0.50-0.80, Si:1.50-1.80, P:≤0.03, S:≤0.03 |
Processing: The steel is heated to a forging temperature and then shaped through hot forging.
Heat treatment: After forming, the clips undergo hardening (quenching) in oil to improve their mechanical properties, followed by tempering to reduce brittleness.
Advanced materials: Some advanced clips may also use stainless steel or composite materials for added corrosion resistance.
Production Processes of Elastic Rail Clips
Rail clip processing procedures includes:
- Raw material purchasing
- Shearing
- Heating to forging temperature
- Forming
- Hardening
- Tempering
- Surface treatment
- Inspection-Packing
Major Rail Clip Types from GNEE RAIL
| E-type Clips | |||
| Model | Diameter | Material | Hardness |
| E1809 | ø20 | 60Si2MnA | 44-48 |
| E1813 | ø18 | 60Si2MnA | 44-48 |
| E2001 | ø20 | 60Si2MnA | 44-48 |
| E2039 | ø20 | 60Si2MnA | 60Si2MnA |
| E2055 | ø20 | 60Si2MnA | 60Si2MnA |
| SKL Tension clips | |||
| Model | Diameter | Material | Hardness |
| SKL1 | ø13 | 60Si3CrA | 42-47 |
| SKL3 | ø13 | 60Si3CrA | 42-47 |
| SKL12 | ø13 | 38Si7 | 42-47 |
| SKL14 | ø14 | 60Si2MnA | 42-47 |
| Other Rail Clips | |||||
| Model | Russia rail clip | Deenik clip | Anti-vandal clip | Fast clip GL1419 | GL1419 |
| Diameter | ø18 | ø25 | ø18 | ø15 | ø14 |
GNEE RAIL offers different kinds of railway fasteners to meet client's requirements, such as Elastic Rail Clip and Clamp, Rail Screw Spike, Plastic Dowel, High Tensile Track Bolt with Nut, Rail Base(Tie) Plate, Rail Fish Plate, Railway Shoulder(Insert), Fish Bolt, Railroad Rubber and EVA Pad, etc. Samples and drawings provided by customer, we will manufacture qualified products accordingly.