What grade of steel is a railroad spike

Oct 22, 2025 Leave a message

Railroad spikes (RR spikes) are used for fastening the rail track to the tie plate. It has different types on the market: dog spike and screw spike, primarily.

 

rail fastening

Dog Spike

 

Specification Material Surface Standard
5/8*6 '' A3,Q235, 45#,55#, etc According to customer needs. According to customer's drawings or samples.
9/16*5-1/2 ''
3/8''*3-1/2 ''
1/2*3-1/2
Other kinds

 

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Screw Spike

 

the types of Ss Series Sleeper Screw Product Name Specification Material Surface Standard
1 Fishtail Bolt M8-M64 Q235,45#,55#,etc Zinc,Plain, Black Oil UIC,AREMA,JIS,GB or according to your requests.
2 Screw Spike Square Head Screw Spike M16-M22 *145-200
Hexagon Head Screw Spike
Other Types
    Type Specification Weight/kg Surface Standard
3 Sleeper Screw Ss 1/130 M22*130 0.451 Zinc,Plain, Black Oil UIC,AREMA,JIS,GB or according to your requests.
Ss 1/150 M22*150 0.478
Ss 2/180 M22*180 0.595
Ss 5/150 M24*150 0.545
Ss 6/130 M26*130 0.658
Ss 6/150 M26*150 0.702
Ss 6/170 M26*170 0.385
Ss 7/180 M24*180 0.636
Ss 8/140 M24*140 0.528
Ss 8/150 M24*150 0.548
Ss 8/160 M24*160 0.568
Ss 23/160 M23*160 0.645
Ss 24/165 M24*165 0.59
Ss 25/165 M25*165 0.625

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Basically railroad spikes are made out of the following materials: Q235 carbon steel, Q 345B carbon steel, Q345D carbon steel, 45# (GB standard) carbon steel, 40Cr steel, 35CrMoA steel and 20MnTiB.

 

rail fastening

 

The differences of the material that used for making railroad spikes:

 

Q235 carbon steel: it features in good plastic property, toughness and welding performance. It also has good cold pressing and bending. The Q235 carbon steel is always used for parts and welding structure application with average requirements.

 

45# carbon steel: it is the most used medium carbon steel. Good comprehensive mechanical properties. It is easy to crack in cold pressing. It is widely used for manufacturing moving parts with higher strength, such as gears, shafts, teeth, etc.

 

rail fastening

 

Q345 carbon steel: Good comprehensive mechanical properties, good processing performance with cold and hot pressing. Good corrosion resistance. It is typically used in the welding structural parts with high loading, such as ships, boilers, pressure vessel, crude oil tank, bridge, power plant equipments, crane, etc.

 

40Cr steel: after conditioning, it has good comprehensive mechanical properties, toughness in low temperature impact. Poor welding property, easy crack. It is one of the most used steel. You can find this material in gears, shafts, worm, sleeve, pin, rod, screw, bolt, valve, etc.

 

Customers can choose railroad spikes made out of the material that they need.Send your special customization requirements to GNEE.