Description
Technical Parameters
Rail Fish Plate - Technical Specification & Identification
| Parameter | Description & Details |
|---|---|
| Product Name | Fish Plate (Common Global Term) |
| Alternative Names | Joint Bar (North American Term), Splice Bar, Rail Connector |
| Primary Function | To connect two ends of rail in a joint, maintaining alignment (line and level) and transmitting bending forces and traffic loads from one rail to the next. |
| Compatible Rail | Must exactly match the rail profile (e.g., UIC 60, 115RE, 136RE, 50E2) and the rail height. |
| Standard Material | Medium-Carbon Manganese Steel (e.g., 55# carbon steel, 36MnVS4 microalloyed steel) or Quenched & Tempered Alloy Steel. |
| Material Standard | International: UIC 864 European: EN 13674-4 North American: AREMA M92, ASTM A3 |
Key Components of a Rail Joint
| Component | Function | Image / Description |
|---|---|---|
| Fish Plate / Joint Bar | Connects the two rail ends and transmits load. | Two metal bars that mirror the rail profile, fitting snugly against the web. |
| Fish Bolts & Nuts | Clamp the fish plates tightly to the rail web. | High-strength bolts with oval or round heads, used with spring washers. |
| Oval Holes | Allow for longitudinal movement of the rail due to thermal expansion. | Elongated holes in the fish plate that allow the bolt to shift. |
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