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.
| Name | E-type rail clip |
| Material | 60Si2MnA 60Si2CrA 55Si2Mn 38Si7 |
| Hardness | 44-48HRC |
| Fatigue Life | for Dia.18 is 3 millions cycles without breaking |
| for Dia.20 is 5 millions cycles without breaking | |
| Surface | plain (oiled), Oxide black, color painting or according to customer requirement |
| Standard | DIN17221, BS970, GB/T1222 |
How often should E-type rail clip fasteners be inspected?
E-type rail clip inspection frequency varies, but generally involves regular checks (quarterly to semi-annually) focusing on cracks, rust, and proper clamping force, with full replacement needed for significant damage or fatigue, often guided by operational factors like tonnage and environment. While some are "fit-and-forget," maintaining consistent clip type and checking for fatigue, corrosion, and deformation is key for safety, with some tracks seeing inspections every six months or annually.
Key Inspection Points & Triggers:
- Cracks: Spring bars need immediate replacement if cracks appear.
- Rust: Mild rust can be cleaned, but severe rust on bolts or clips requires replacement.
- Deformation: Gauge baffles affecting track gauge need correction or replacement.
- Clamping Force: Needs periodic measurement to ensure clips aren't loose or fatigued.
- Environmental Factors: Coastal or humid areas might need more frequent rust treatment (e.g., semi-annual).
When to Inspect More Frequently:
- High Traffic/Heavy Haul Lines: Tracks with more train movements and heavier axle loads experience faster fatigue.
- Harsh Environments: Coastal areas (salt), humid tunnels, or extreme temperature variations increase wear.
Raw Material for Elastic Rail Clip
Elastic rail clips are made of high quality spring steel bar. These steels are generally low-alloy Manganese, medium-carbon steel or high-carbon steel with a very high yield strength. Spring steel has excellent comprehensive performance like mechanical properties, performance by the bullet-proof, fatigue, hardenability, physical and chemical properties. The raw materials of elastic railroad clip mostly include 55 Si7, 60 Si7, 65 Si7, 55 Si Cr7, 60Si2MnA, 60Si2CrA, 55Si2Mn, and 38Si7 grade of spring steel.
| 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 |
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.