What is a rail clip

Sep 23, 2025 Leave a message

A rail clip is a high-strength elastic fastener used to firmly press the rail onto the sleeper or the rail tie plate beneath the sleeper. It is a critical component in modern railway fastening systems.

 

Typically manufactured from high-quality spring steel or alloy steel, such as 60Si2MnA, 55Si2Mn, or 50CrVA, these clips undergo heat treatment to ensure they maintain excellent elasticity and fatigue resistance under long-term train load impacts and environmental variations.

 

rail fasteners

 

Varieties of rail clips
Series Type Hardness Material Fatigue life Surface Standard
E rail clip E1,E2,E3 44-48HRC 60Si2MnA:
C:0.56-0.64,Mn:0.60-0.90,
Si:1.60-2.00,Cr:≤0.35, P:≤0.03, S:≤0.03

60Si2CrA:
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

55Si2Mn:
C:0.52-0.60,Mn:0.60-0.90,
Si:1.50-2.00,Cr:≤0.35 P:≤0.03, S:≤0.03

38Si7:C:0.35-0.42,Mn:0.50-0.80,
Si:1.50-1.80, P:≤0.03, S:≤0.03
For Dia.18 is 3 million cycles
without breaking.


For Dia.20 is 5 million cycles
without breaking.
plain (oiled), Oxide black, color painting or according to customer requirement. DIN17221, BS970, GB/T1222
E1609
E1809
E1817
E2001
E2006
E2009
E2055
E2056
Vossloh clip&Forged rail clip SKL1 42-47HRC
PR rail clip PR309 44-48HRC
PR401
PR601
PR85
Customized production of rail clips are available according to your drawings or samples!

 

Within the track structure, the primary function of the rail clip is to absorb vibrations and impact forces generated during train operation through its own elastic deformation. This prevents longitudinal or lateral displacement of the rail, thereby maintaining gauge stability and track geometry.

 

rail elastic clip

 

Compared to traditional fastening methods using bolts and spikes, elastic rail clips not only offer simpler installation and reduced maintenance but also exhibit outstanding durability and resistance to loosening. They are particularly suitable for lines with requirements for safety and stability, such as high-speed railways, heavy-haul railways, and urban rail transit systems.

 

GNEE RAIL has long supplied high-quality rail clip products to the international railway market, with materials and dimensions complying with international standards such as UIC, AREMA, and EN. Additionally, the company supplies a full range of railway fasteners including Rail Pads, Rail Tie Plates, Fishplates, Crane Rail Clips, and Rail Bolts, and provides customized design services.

 

rail fastening

 

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