42-47 Hardness 38Si7 Rail Elastic Clip

Oct 29, 2025 Leave a message

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.

 

rail fastening

 

ade from 38Si7 spring steel with a hardness of 42-47HRC, this clip offers excellent elasticity, toughness, and fatigue resistance, maintaining stable clamping force under long-term repeated loads. Its design is precisely calculated to ensure tight fit with rails and sleepers, improving overall track performance.

 

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

 

For surface treatment, GNEE RAIL offers hot-dip galvanizing, phosphating, or painting, enhancing corrosion and wear resistance. These clips effectively absorb lateral impact forces generated during train operation, reducing track wear and improving operational smoothness.

 

rail fasteners

 

GNEE RAIL has strict test and completely authentication at every single step of manufacturing rail clips and a full set of quality control system, from raw material purchasing to the finished rail clip packing. We have a professional inspection team to check about each process of the production line.

 

rail fastening

 

GNEE RAIL 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.

 

Click here to obtain the detailed product catalog of GNEE RAIL.