E Type Rail Elastic Clip is one of the common track fasteners in the railway fastening system, which is used to provide positive and durable track alignment under harshest working conditions, thus extending the life of railway track. Generally, rail elastic clip is made of forged spring steel with a diameter range from 18mm to 23mm, the main function of rail clip is to fasten railroad sleeper and steel rail together. The rail clip is considered as one of the best ways to ensure that rails not move, bend, warp, etc.
What's the fatigue life of E rail elastic clip?
E-rail elastic clip fatigue life varies greatly but is often designed for 5 million cycles (5x10^6) under normal conditions, though factors like impact loads, installation (deflection, insertion depth), corrosion, and clip type (Type I, II, III) significantly reduce or extend this, with some designs exceeding 12 million cycles, while severe conditions can drop it to thousands of cycles.
Factors Affecting Fatigue Life
Installation: Incorrect clip deflection or insertion depth drastically cuts life (e.g., 14mm deflection reduced life to ~84k cycles).
Impact/Vibration: Wheel impacts reduce life significantly; higher damping (e.g., better rail pads) can increase life by over 85%.
Corrosion: A damaged anti-corrosion coating can cause cracks even at lower stress levels.
Material: Different spring steels (like 60Si2Mn vs. 38Si7) offer different fatigue resistances.
| 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 |
How to choose the right size e-railway clip?
Choosing the right e-railway clip involves matching its dimensions (especially the wire diameter and free diameter) to the rail profile and baseplate groove, ensuring it provides sufficient toe load and elasticity for vibration absorption, and selecting the correct model (like E1809, E2005, etc.) for your specific rail size (e.g., 18mm or 20mm diameter rails) and sleeper system. Key steps include measuring the rail foot, checking baseplate specs, and consulting manufacturer guides for compatibility.
| Model | Diameter | Material | Under Pressure | HRC | Weight |
| E1609 | Ø 16mm | 60Si2MnA | ≥950kg | 44-48 | 0.43kg/pc |
| E1809 | Ø 20mm | 60Si2MnA | ≥950kg | 44-48 | 0.61kg/pc |
| E1813 | Ø 18mm | 60Si2MnA | ≥950kg | 44-48 | 0.62kg/pc |
| E2001 | Ø 20mm | 60Si2MnA | ≥950kg | 44-48 | 0.80kg/pc |
| E2009 | Ø 20mm | 60Si2MnA | ≥950kg | 44-48 | 0.80kg/pc |
| E2039 | Ø 20mm | 60Si2MnA | ≥950kg | 44-48 | 0.80kg/pc |
| E2007 | Ø 20mm | 60Si2MnA | ≥950kg | 44-48 | 0.80kg/pc |
| E2055 | Ø 20mm | 60Si2MnA | ≥950kg | 44-48 | 0.80kg/pc |
| E2056 | Ø 20mm | 60Si2MnA | ≥950kg | 44-48 | 0.80kg/pc |
| E2063 | Ø 20mm | 60Si2MnA | ≥950kg | 44-48 | 0.80kg/pc |
GNEE RAIL offer an extensive range of rail clips with optimum quality, these rail clips are designed with high precision and made up of premium grade spring steel. GNEE has been the largest and most competitive production base of rail clip in China after more than 18 years' rail clip producing experience, and have qualification to tender nationally large and medium scaled rail projects. What's more, our rail clip can be customized according to clients' requirements.