Railway Fastening Fish Plates

Railway Fastening Fish Plates

Railway fish plate, also called rail joint or splice bar, is a metal bar connected to the ends of two railroad rails to join them together. By experience, high quality railway fish plates can effectively reduce the influence of wheels to the jointing sections of the steel rail and increase the steadiness and continuity of the train when passing through the jointing sections. As an important part of rail components, railway fish plates are widely used both in light rail and heavy rail to guarantee the safety of railroad transportation.
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Description
Technical Parameters

Rail Joint Fish Plates: Technical Data Sheet

PROPERTY SPECIFICATION
Product Category Compromise Fish Plates
Material Grade 50CrVA Spring Steel / 60Si2MnA
Heat Treatment Quenched & Tempered
Surface Finish Hot-Dip Galvanized (≥85μm) / Powder Coated
Mechanical Properties Yield Strength: ≥550 MPa • Hardness: 24-30 HRC
Fatigue Performance >2×10⁶ load cycles (UIC 864-6)
Corrosion Protection Salt Spray: 1000 hours (Red rust)

Railway Fastening Fish Plates

Application & Installation Profile

CHARACTERISTIC DETAILS
Joint Configuration Supported Joint • Suspended Joint • Bridge Joint
Bolt Configuration 4-Bolt / 6-Bolt Patterns (M24 × 130 mm)
Installation Torque 450-550 N·m (Lubricated threads)
Key Innovation Interlocking groove design for vertical stability
Performance Features - Shear resistance: ≥350 kN
- Electrical insulation kits available
- Thermal expansion accommodation
Inspection Protocol NDT testing every 2 years for stress cracks

 

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Railway Fastening Fish PlatesRailway Fastening Fish Plates

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