38Si7 painting Coating SB Rail Clip

In railway fastening systems, the rail spring clip serves as a core elastic component. Its primary function is to generate and maintain a reliable clamping force through its own elastic deformation, securing the rail onto the sleeper or track plate. This mechanism effectively resists vibrations and impacts caused by train operation and prevents longitudinal rail creep. Common types of rail clips include E-type, SKL-type, PR-type, and Nabla-type spring clips etc.

 

 

The SB rail clip is a specifically designed variant within this category, engineered to meet defined clamping force and fatigue life requirements.

 

The mechanical performance of SB-type clips is determined by their material. 38Si7 is a spring steel commonly used in railway fastenings, with a chemical composition of approximately 0.35%–0.42% carbon and 1.50%–2.00% silicon. This composition allows the steel, after heat treatment, to achieve an optimal balance of strength and toughness, offering high fatigue resistance and excellent impact performance, which ensures the clip's necessary elasticity and long-term durability.

 

 

A paint coating is one of the surface treatment options for SB Rail clips. By applying a layer of paint in a specified color onto the clip's surface, the coating provides corrosion protection and serves as a visual identification method. Compared with simple anti-rust oil treatments, painted coatings offer more durable rust resistance, and the use of different colors facilitates on-site classification, quality tracking, and maintenance management.

 

SB Rail Clip Technical Parameters:

 

 

Materials	38Si7,60Si2CrA
Standard refers to	UNI 3545,GB/T 1222
Product properties	Hardness HRC42-46
Fatigue testing	≥5 million cycles
Clamping force	10.7-10.9KN
Coating	Plain,painting

 

Rail Tension Clip Package:

1.25 kg double-layer woven bag with free fumigation wooden pallent

2.36bags/pallets

3.20pallets/20ft

 

 

GNEE RAIL is a leading Chinese manufacturer of rail fastening and rail joint bar.GNEE, as a specialized rail fastener manufacturer, provides a complete line of products as follows:

1.Rail clip,tension clamp,E rail clip,skl rail clip,W rail clip,O rail clip ,fast rail clip

2.Rail screw spike,rail sleeper screw,rail dog spike,coach screw,track spike

3.Rail bolt with nut,track bolt,anchor bolt,high strength bolt

4.Tunnel Construction Rings Connection Bolts

5.Fish plate,fish bolt,washer,nut

6.Plain washer,spring washer

7.Rail shoulder

8.Tie plate,base plate

9.Rail insulator,guide plate

10.Turnout,switch

11.Rail pad,rubber pad

We are dedicated on supplying more better quality rail fastenings to the world railroad, and contributing to availability of more safety and convenient transit.

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