Description
Technical Parameters
Product Overview & Features of Railway Fish Plate
| Item | Description |
|---|---|
| Product Name | Railway Fish Plate |
| Alternative Names | Rail Joint Bar, Splice Bar |
| Application | Joining two ends of rails in a track. Used in both temporary and permanent rail joints. |
| Core Function | To hold the two rail ends in correct alignment and transmit the wheel loads from one rail to the next. |
| Material | High-Quality Carbon Steel or Micro-alloyed Steel (e.g., 55#, 60#, 70# steel or B7). |
| Heat Treatment | Quenched and Tempered to achieve high strength and toughness. |
| Surface Treatment | Black (Self-color) or Galvanized for corrosion protection. |
| Key Features | • High strength and wear resistance • Maintains track alignment and gauge • Reduces impact at rail joints • Easy to install and replace |
| Common Standards | AREMA, BS, IS, JIS E, GB/T, or specific railway authority standards. |
Detailed Technical Parameters of Fish Plates
| Parameter | Specification / Value | Remarks / Standard |
|---|---|---|
| Compatible Rail Section | e.g., 60E1, UIC60, 115RE, 136RE | The fish plate must be designed for the specific rail profile. |
| Bolt Hole Quantity | 4-hole or 6-hole (most common) | Depends on the rail section and design requirements. |
| Bolt Hole Diameter | Typically 30 mm or 36 mm | Matches the diameter of the fish bolts. |
| Tensile Strength | ≥ 700 MPa (for common grades) | High strength is critical to withstand the dynamic loads. |
| Hardness | 241 - 302 HBW (Typical range) | Must be carefully controlled to be slightly lower than the rail hardness to prevent rail end battering. |
| Weight (per pair) | Varies by rail section (e.g., 20-40 kg per pair) | - |
| Installation Components | Fish Bolts, Spring Washers, and Nuts. | The complete joint assembly. |
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