Description
Technical Parameters
Railway Fishplate
| Category | Parameter | Details | Standards/Values |
|---|---|---|---|
| Basic Info | Type | Standard / Insulated / Compromise / Joggled Fishplate | Depends on rail joint type |
| Material | Carbon Steel (Grade 50E, 70E) / Stainless Steel (AISI 304) | EN 10025, ASTM A36 | |
| Surface Treatment | Hot-Dip Galvanized (HDG) / Black Oxide Coating | ISO 1461, ASTM A123 | |
| Design Features | Hole Type | Oval / Circular (for bolt adjustment) | Allows thermal expansion |
| Bolt Holes | 4-Hole / 6-Hole (depending on rail size) | UIC 860, AREMA 2-5.6 | |
| Length | 300mm - 1000mm (varies with rail profile) | Matches rail section (e.g., UIC 60) | |
| Mechanical | Tensile Strength | ≥500 MPa (Grade 50E) / ≥700 MPa (Grade 70E) | EN 10025-2, ASTM A572 |
| Shear Resistance | ≥60 kN per bolt (for standard fishplates) | DIN EN 13481 | |
| Fatigue Life | >2 million cycles (dynamic load testing) | EN 13230-3 | |
| Compatibility | Rail Types | UIC 54/60, BS 80A-100A, AREMA 115RE-136RE | Must match rail profile |
| Bolt Type | Fish Bolts (M22, M24) with spring washers | EN 14399, ASTM A325 | |
| Standards | Europe (UIC) | UIC 864 / EN 13230 | TSI compliant |
| North America (AREMA) | AREMA Chapter 3, Section 5.6 | FRA-approved |
Fishplate Types Comparison
| Type | Advantages | Disadvantages | Typical Use |
|---|---|---|---|
| Standard | High strength, cost-effective | Requires frequent re-tightening | General freight lines |
| Insulated | Electrical isolation for signaling | Lower mechanical strength | Electrified track sections |
| Compromise | Connects different rail profiles | Complex installation | Transition zones |
| Joggled | Improved alignment at joints | Higher manufacturing cost | Curved tracks |
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