Description
Technical Parameters
Railway Fish Plate Basic Technical Specifications
| Category | Specification | Details / Value |
|---|---|---|
| Product Name | Railway Fish Plate (Joint Bar) | |
| Primary Function | To connect two rail ends and maintain alignment while allowing for thermal expansion | |
| Design Standard | International | UIC 864, AREMA, EN 13674-4, BS 47 |
| Regional | TB/T 2345 (China), IRS T-12 (India) | |
| Material Grade | Standard Grade | 55C (550 MPa tensile) |
| High Strength | 70C (700 MPa tensile) | |
| Alloy Steel | 900A (900 MPa tensile) | |
| Dimensional Classification | By Length | 600mm, 800mm, 1000mm |
| By Hole Number | 4-hole, 6-hole, 8-hole configurations | |
| Surface Treatment | Standard | Shot blasting + anti-rust oil |
| Premium | Hot-dip galvanizing |
Key Technical Notes:
- Section Matching: Fish plates must precisely match the rail profile (head, web, foot dimensions)
- Hole Tolerance: Bolt holes maintain ±0.5mm precision for proper alignment
- Material Compatibility: Electrochemical compatibility with rail steel prevents galvanic corrosion
- Thermal Considerations: Gap adjustment calculations based on local temperature ranges
Performance Comparison with Welded Joints:
| Parameter | Fish Plated Joint | Welded Joint |
|---|---|---|
| Installation Time | 30-60 minutes | 2-4 hours |
| Reusability | Fully reusable | Permanent |
| Impact on Ride Quality | Noticeable | Smooth |
| Maintenance Interval | 6-12 months | 5-10 years |
| Suitable for High-speed | Limited (<160 km/h) | Excellent (>300 km/h) |
gnee-professional supplier
Hot Tags: railway fish plate steel, China railway fish plate steel manufacturers, suppliers, factory, asce rail specification, compromise rail joint, fish bolts are made of, Insultated Rail Joint, joint bar, Rail Joints
