What material is commonly used to make elastic rail clips?

Rail clip is a component of railway fastening systems. It is used to fix the railroad track to the underlying baseplate and sleepers. The clamping force by rail clips helps to maintain the gauge and prevent the rail from moving in the vertical and horizontal direction relative to the sleeper. One extensively used type of rail clip is an elastic rail clip made of hot-pressed spring steel. Its energy produced at elastic deformation can alleviate the vibration and shock when trains move. Other track materials such as rail joints, gauge rods, rail clamps, and rail pads are also available.

 

 

What's the function of rail clip?

 

Rail track supports vehicle and is fixed to the railway sleeper by rail fastening system. As the core part of rail fastening system, the bending and distortion of rail clip will produce crimping force on the rail track, which ensure the reliable connection between rail tracks and keep the integrity of rail track.

 

Besides, the rigid contact of vehicle and rail track will cause vibration, the elastic structure of rail clip can absorb the impact energy during the train operation, reduce the shocking. The elastic rail clip works under the repeated alternating stress. It bears various effects such as bending, torsion, fatigue and corrosion. When the vehicle passes, it also bears extremely high instantaneous impact load.

 

 

In the seamless track of viaduct, in order to reduce the interaction between the rail and the bridge, the fastener resistance is required to be small, the elastic rail clip is guaranteed to have a low degree of steel, so as to ensure that the buckle pressure loss caused by the compression of the underlayer of the rail when the train passes, and the fastener is not loose.

 

What material is commonly used to make elastic rail clips?

 

Elastic rail clips are commonly made from high-quality spring steel, such as Silico Manganese spring steel (e.g., 60Si2MnA, 55 Si7, 60 Si7) or silicon-chrome steel grades, chosen for their excellent elasticity, strength, and fatigue resistance, usually manufactured through a hot forging process to achieve superior microstructure and performance.

Key Materials & Types:

Spring Steel Grades: Common grades include 55 Si7, 60 Si7, 60Si2MnA, 60Si2CrA, 55Si2Mn, and 38Si7.

 

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

Silico Manganese Steel: A specific type of spring steel often used for its robust properties.

 

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Model	Diameter	Weight	Material
Type III	Ø18	0.80kg/pc	60Si2MnA
E1609	Ø16	0.43 kg/pc	60Si2MnA
E1809	Ø20	0.61kg/pc	60Si2MnA
E1813	Ø18	0.62kg/pc	60Si2MnA
E2001	Ø20	0.80kg/pc	60Si2MnA
E2007	Ø20	0.80kg/pc	60Si2MnA
E2009	Ø20	0.80kg/pc	60Si2MnA
E2039	Ø20	0.80kg/pc	60Si2MnA
E2055	Ø20	0.80kg/pc	60Si2MnA
E2056	Ø20	0.80kg/pc	60Si2MnA
E2063	Ø20	0.80kg/pc	60Si2MnA
PR85 Rail Clip	Ø13	0.25kg/pc	60Si2MnA
PR309A	Ø19	0.85kg/pc	60Si2MnA
PR401	Ø20	0.97kg/pc	60Si2MnA
PR415	Ø20	0.95kg/pc	60Si2MnA
PR601A	Ø20	1.03kg/pc	38Si7
SKL 1	Ø13	0.48kg/pc	60Si2CrA
SKL 3	Ø13	0.48kg/pc	60Si2CrA
SKL 12	Ø13	0.53kg/pc	38Si7
SKL 14	Ø13	0.53kg/pc	60Si2MnA
Special Rail Clip	Ø13	0.48kg/pc	60Si2MnA
Russia Rail Clip	Ø18	0.58kg/pc	60Si2MnA
Deenik Clip	Ø25	0.49-0.68kg/pc	60Si2MnA
Single Anti-	Ø20	0.25kg/pc	60Si2MnA
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