Elastic rail clip is one of the common railway fasteners in the railway system. In general, elastic rail clip is made of forged spring steel and has many applications. No matter as a part of rail fastening system or as a rail fastener, elastic rail clip is used with other railway track parts, such as railroad spike, rail pad, tie plate and plastic dowel.
E-type rail clip can provide durable alignment which can protect the steel rail and the fastenings from high pressure. The materials of e clip is spring steel which make e clip of high strength. There are many types of e clip: E1609, E1809, E1817, E2007, E2009, E2055, etc.
| Item | E Clip Fasteners | |||
| Chemical Composition | 60Si2MnA | 60Si2CrA | 55Si2Mn | 38Si7 |
| C:0.56-0.64, Mn:060-0.90, Si:1.50-2.00, 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 | |
| Hardness | 44-48 HRC | |||
| Fatigue Life | 3-5 million cycles without breaking | |||
| Surface | Plain Oiled, Oxygen Black, Zinc Plated, Hot Dip Galvanized, Dacro coating, Color Painting | |||
| Standard | UIC, AREMA, BS, RDSO, DIN, JIS, ISCR, VALEC, GOSTR- EASC, GB/T or other upon requirements | |||
| Package | Moven Bag, Pallet | |||
| Delivery | Depends on order | |||
What temperature range fits E rail elastic clip?
E-rail elastic clips, made from spring steel, are manufactured at high heat (around 950-1000°C) and then tempered at 400-500°C for toughness, but their service temperature range is dictated by the tracks, needing to withstand extreme cold and heat, ensuring they don't become brittle or lose elasticity, generally performing well across vast ambient temperature fluctuations where rails operate, from extreme cold to hot summer highs (e.g., -40°C to +60°C or more).
Key Temperature Considerations:
- Manufacturing (Heat Treatment): Forging happens around 950-1000°C, followed by tempering at 400-500°C to achieve desired hardness (40-48 HRC) and toughness, preventing failure.
- Service (Operating Conditions): While specific limits vary by region, clips must function effectively across wide ambient temperatures, from freezing winter conditions (where brittleness is a risk) to scorching summer heat (where elasticity is key).
- Material Properties: The goal is to maintain appropriate elasticity and strength in extreme cold and heat, preventing them from becoming too brittle (cold) or losing clamping force (hot).
How to keep a railway clip flexible under extreme temperatures?
To keep railway clips flexible in extreme temperatures, manufacturers use specific heat treatments (like tempering) and high-quality materials; while for installed tracks, engineers manage thermal stress through techniques like Continuous Welded Rail (CWR) with calculated gaps, smart materials in clips/pads, and monitoring for expansion/contraction, plus proactive maintenance to ensure clips aren't over-tightened or under-tensioned.
Manufacturing & Material Solutions
Heat Treatment: Elastic rail clips undergo specific heat treatments, like tempering (around 400-500°C), to achieve the right balance of toughness and elasticity.
Material Selection: Using high-quality spring steel and smart materials helps clips maintain performance across temperature ranges.
Optimized Design: Components like rail pads are designed for high elasticity to absorb forces and vibrations, supporting the clips.
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.