Railway clips are elastic components installed at different positions of the track, such as tie plates, fasteners and panels, to reduce the impact and vibration of trains. Because railway clips directly affect driving safety and passenger comfort, spring clips are a very important element in the construction and maintenance of railway tracks.
70# High Carbon Steel
70# high carbon steel is mainly suitable for laying old lines and for track sections where higher wear resistance is required. It offers high strength, high elasticity and high wear resistance, and it keeps its clamping performance under repeated loading.
Q235B Carbon Steel
Q235B carbon steel is mainly suitable for laying new lines. Compared with 70# high carbon steel it has better heat treatment response and plasticity, and it can better adapt to different railway temperatures and bending conditions.
Spring Steel Grades
Spring steel is mainly used for curved areas and high-speed railways. Its high elasticity and stability effectively reduce the vibration and impact caused by passing trains, ensuring safety and comfort. Common spring steel grades for elastic clips are 60Si2MnA, 60Si2CrA, 55Si2Mn and 38Si7, with typical hardness of 42 to 48 HRC and a fatigue life of 3 to 5 million cycles without breaking depending on the bar diameter.
How to Choose the Right Material
For old lines with heavy traffic, choose high carbon steel for better wear resistance
For new lines in wide temperature ranges, choose carbon steel with good plasticity
For curves and high-speed sections, choose spring steel for high elasticity and stability
Consider surface treatment for humid, coastal or saline environments
Packing and Delivery Notes
Railway spring clips can be packed in plastic bags with wooden boxes outside, ton bags or iron boxes, suitable for sea, land and air transport. Correct packing prevents damage and corrosion during long-distance shipment and makes site handling easier.
FAQ
Q: What is the most common material for railway clips?A: Spring steel is the most common because it provides high elasticity, toughness and fatigue resistance.
Q: Where is 70# high carbon steel used?A: It is mainly used for old lines where high strength and high wear resistance are needed.
Q: Why is Q235B used for new lines?A: It has better heat treatment response and plasticity and adapts well to different temperatures and bending conditions.
Q: Which material suits high-speed railway curves?A: Spring steel grades such as 60Si2MnA and 38Si7 provide the elasticity and stability required for curves and high-speed sections.
Q: What packing is available for rail clips?A: Plastic bag inner packing with wooden box outer packing, ton bags and iron boxes are available for different transport modes.
