What Are the Characteristics of E Type Rail Elastic Clip?
E-type rail elastic clips possess several prominent technical characteristics, with their core advantages lying in the perfect combination of material properties and structural design.
- The clips are manufactured from high-quality spring steel 60Si2MnA, and after precise heat treatment processes, the hardness remains stable within the ideal range of 44-48 HRC. This characteristic ensures stable clamping force is maintained even under long-term dynamic loads.
- The fatigue life performance is exceptional, with 18mm diameter specifications enduring 3 million cycles without fracture, and 20mm diameter specifications achieving 5 million cycles. This outstanding durability directly translates to longer maintenance cycles and lower total lifecycle costs.
| railway E clips Specifications | ||||
| 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: 44-48HRCFor 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 | |||
| Standard refers | DIN17221, BS970, GB/T1222 | |||
In terms of structural design, the symmetrical geometry of E-type clips grants them unique bidirectional installation capability, significantly improving construction efficiency and reducing installation complexity. Their compact design not only adapts to various sleeper types, including concrete, wooden, and steel sleepers, but also perfectly matches components from different standard track systems. Through precisely calculated curved surface contact, the clips generate continuous and stable clamping force, effectively suppressing longitudinal creep and lateral displacement of the rail, ensuring long-term stability of track geometry.
The environmental adaptability of E-type clips is equally commendable. By offering various surface treatment options, including plain (oiled), oxide black, color painting, and hot-dip galvanizing, they can meet anti-corrosion requirements for all climatic conditions from humid coastal to arid inland areas.
This flexibility, combined with their globally universal specification system, makes E-type clips an ideal choice for international railway projects. The E-type clip products supplied by GNEE RAIL leverage these comprehensive advantages to provide global customers with trustworthy track fastening solutions.
