GB/T 1222,DIN 17221 Standard 60Si2Cr,38Si7,60Si2Mn W14 Rail Clip
Oct 16, 2025
The W14 rail clip is a high-strength elastic fastening component widely used in high-speed railways, urban transit systems, and heavy-haul railway lines worldwide. Its primary function is to provide a continuous and stable clamping force that securely fastens the rail to the sleeper or rail plate, preventing both lateral slippage and longitudinal creep. At the same time, its excellent elastic recovery enables it to effectively absorb the impact and vibration generated during train operation, ensuring the long-term stability of the track structure.
According to different national standards, the W14 rail clip is manufactured in compliance with China's GB/T 1222 and Germany's DIN 17221 standards, ensuring that its material properties and performance meet international requirements. Commonly used materials include 60Si2Cr, 38Si7, and 60Si2Mn high-grade spring steels.
W14 Rail Tension Clip Technical Parameters:
|
Materials |
60Si2Cr,38Si7,60Si2Mn |
|
Standard refers to |
GB/T 1222,DIN 17221 |
|
Product properties |
Hardness HRC42-47 |
|
Fatigue testing |
≥5 million cycles |
|
Clamping force |
>10KN to EN 13146-7:2012 |
|
Coating |
Plain,painting |
Among them, 60Si2Cr offers superior fatigue resistance and high strength, ideal for high-frequency load conditions; 38Si7 is known for its exceptional toughness, making it suitable for low-temperature or high-impact environments; while 60Si2Mn provides excellent workability and cost-effectiveness, making it the most commonly used material for general railway applications.
| 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 |
Through a precise quenching and tempering heat treatment process, the hardness of the W14 clip is typically controlled between HRC 42–47, ensuring both high elasticity and tensile strength while preventing brittleness and fracture from excessive hardness. Depending on environmental requirements, the surface can be treated with Plain Coating, Painting Coating, or advanced anti-corrosion finishes such as Dacromet, effectively enhancing corrosion resistance and extending service life.
GNEE RAIL is a professional supplier of W14 rail clips that fully comply with GB/T 1222 and DIN 17221 standards. We provide a wide range of materials (60Si2Cr, 38Si7, 60Si2Mn) and surface treatment options, as well as complete rail fastening system consultation, material customization, and installation technical support. With our engineering expertise, GNEE RAIL helps railway construction projects achieve safe, stable, and efficient operation under various environmental and load conditions.
