What is a rail elastic clip?
Rail elastic clip is used to fasten the rails to the underlying base plate together with the concrete sleeper. Usually rail clips are made of forged spring steel which is produced by hot forging process. Because of the uniform microstructure of forged clips, it is considered to be better than other metal forming process.
GNEE RAILWAY 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 RAILWAY RAILWAY 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.
What is the hardness of the rail elastic clip?
The hardness of a rail elastic clip typically ranges from HRC 42-47, according to specifications for common types like E2007 and E2055. Some high-performance variants, such as Nabla clips, may have a higher hardness of HRC 51-55.
- Standard hardness: The most common hardness specification for elastic rail clips is HRC 42-47. This is often a requirement for clips made from spring steel grades like 60Si2MnA.
- Higher hardness variants: Some specialized types of elastic rail clips, such as Nabla clips, are designed to have a higher hardness of HRC 51-55 to provide enhanced clamping performance.
- Quality standards: The hardness is a critical quality test, along with factors like fatigue life and residual deformation, to ensure the clips perform correctly over their intended service life.
| Name | Rail clip | |||
| Type | E clip (e1809, e2006,e2007,e2009,etc) | |||
| Skl clip (skl1,skl3,skl12,skl14) | ||||
| Or the type by customers' drawings | ||||
| 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 |
| Hardness | For e clip: 44-48HRC | |||
| For skl clip: 42-47HRC | ||||
| 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, HDG, Zinc Plating... | |||
| Standard refers | DIN17221, BS970, GB/T1222 | |||
What is the function of a rail clip?
- Properly transfer the lateral force from the rail into the steel plate and structure
- Secure the rail in the lateral direction to minimize pad creep
- Apply vertical force on the rail to compress the seals on the pad
GNEE RAILWAY RAILWAY 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.