Rail Bolt
A rail bolt is a type of fastener used in railway construction to secure rails to joint bars or fishplates, which are used to connect two rail sections together. Rail bolts are essential for maintaining the integrity and stability of the railway track. Rail bolts are an integral part of railway infrastructure, contributing to the safe and reliable operation of railway tracks worldwide. They play a critical role in maintaining track alignment, minimizing track movement, and preventing derailments.
Rail Bolt Specifications
| Railway Fish bolt | ||||
|---|---|---|---|---|
| Grade | 4.6 | 5.6 | 8.8 | 10.9 |
| Material | Q235 | 35# | 45# | 40Cr |
| Mechanical properties | Tensile strength: ≥400Mpa | Tensile strength: ≥500Mpa | Tensile strength:≥800Mpa | Tensile strength: ≥1000Mpa |
| Yield strength:≥240Mpa | Yield strength:≥300Mpa | Yield strength:≥640Mpa | Yield strength:≥900Mpa | |
| Elongation:≥22% | Elongation:≥20% | Elongation:≥12% | Elongation:≥9% | |
| Cold bending: 90 degree without crac | Cold bending: 90 degree without crac | Cold bending: 90 degree without crac | Cold bending: 90 degree without crac | |
| Surface | plain (oiled), Oxide black, Zinc, HDG, wax, bitumen, Dacromet, Sherardizing | |||
| Standard refers | UIC864-2 | |||