A rail fish plate is a structural joint bar whose purpose is to prevent rail-end separation and uneven load transfer by mechanically linking adjacent rails into a single working unit. GNEE RAIL provides fish plates suitable for GB light and heavy rails, UIC50/UIC54/UIC60, DIN536 and QU crane rail systems, JIS rail sections, AS1085 rails, BS11 standards, and AREMA/ASCE profiles, along with technical documentation support.
| Fishplate for UIC Standard Steel Rail | |||
| Steel Rail Type | Steel Rail Weight (KG/M) | Fishplate Standard | Fishplate Material |
| UIC54 | 54.43 | UIC | 45#,55# |
| UIC60 | 60.34 | ||
| Fishplate for BS Standard Steel Rail | |||
| BS50'O' | 24.833 | BS 47-1 | 55#,45# European Grade 700 |
| BS60A | 30.618 | ||
| BS75R | 37.041 | ||
| BS80A | 39.761 | ||
| BS90A | 45.099 | ||
| BS100A | 50.182 | ||
| BS113A | 56.398 | ||
| Joint Bar for AREMA 2007 Standard Steel Rail | |||
| 100RE(TR50) | 50.35 | AREMA 2007 | 45#,55#,AREMA Grade Steel |
| 115RE | 56.9 | ||
| 115-119RE | |||
| 132RE | 65.31 | ||
| 133RE | 66.1 | ||
| 136RE | 67.41 | ||
| 132-136RE | |||
| Fishplate For Chinese Standard Steel Rail | |||
| GB15KG | 15.2 | YB226-63 | Q235,45# |
| GB18KG | 18.06 | YB225-63 | |
| GB22KG | 22.3 | YB14-63 | |
| GB24KG | 24.46 | ||
| GB30KG | 30.1 | YB351-63 | |
| GB38KG | 38.733 | TB/T 2345-2008 | 45#,55# |
| GB43KG | 44.653 | ||
| GB50KG | 51.514 | ||
What is the material of railway fish plate?
Railway fish plates are primarily manufactured from high-quality hot-rolled, forged, or cast steel (such as Q235, medium, or high carbon steel) to ensure strength, durability, and resistance to fatigue. For specialized applications, they can also be made from composite materials (fiberglass and resin) for insulation or, less commonly, cast iron.
Key details regarding fish plate materials:
- Steel Types: Commonly uses Q235 steel, high-strength alloy, or medium-to-high carbon steel to withstand heavy loads.
| Material Type | Typical Grade / Designation | Chemical Composition (wt%) | Notes / Equivalent Standards |
| Carbon Structural Steel | Q235 (GB/T 700) | C: ≤0.22 | Common mild steel for general joint bars. Similar to ASTM A36, S235JR. |
| Si: ≤0.35 | |||
| Mn: 0.30-0.65 | |||
| P: ≤0.045 | |||
| S: ≤0.045 | |||
| Carbon Structural Steel | Q255 (GB/T 700) | C: 0.18-0.28 | Slightly higher strength than Q235. |
| Si: ≤0.35 | |||
| Mn: 0.40-0.70 | |||
| P: ≤0.045 | |||
| S: ≤0.045 | |||
| Medium Carbon Steel | 50Mn / 50BA (GOST 10779) | C: 0.47-0.55 | Classic high-strength fish plate steel. Widely used for mainline joints. |
| Si: 0.17-0.37 | |||
| Mn: 0.80-1.20 | |||
| P: ≤0.040 | |||
| S: ≤0.045 | |||
| Medium Carbon Steel | 55# (GB/T 699) | C: 0.52-0.60 | Standard medium carbon steel for demanding applications. Similar to AISI 1055. |
| Si: 0.17-0.37 | |||
| Mn: 0.50-0.80 | |||
| P: ≤0.035 | |||
| S: ≤0.035 | |||
| Alloy Steel | 42CrMo (GB/T 3077) | C: 0.38-0.45 | High-strength, high-toughness alloy for severe service. Similar to AISI 4140/4142. |
| Si: 0.17-0.37 | |||
| Mn: 0.50-0.80 | |||
| Cr: 0.90-1.20 | |||
| Mo: 0.15-0.25 | |||
| P: ≤0.035 | |||
| S: ≤0.035 | |||
| Spheroidal Graphite Cast Iron | QT450-10 (GB/T 1348) | C: 3.60-3.90 | Used in some traditional/joint kits for its castability and damping properties. Similar to EN-GJS-450-10. |
| Si: 2.00-3.00 | |||
| Mn: ≤0.50 | |||
| P: ≤0.07 | |||
| S: ≤0.015 | |||
| Mg: 0.03-0.06 (Nodulizer) | |||
| Insulating Composite Material | Epoxy Fiberglass / FRP | Base: Epoxy Resin | No metallic elements. Provides electrical insulation (Resistivity >10¹² Ω·cm), corrosion resistance. |
| Reinforcement: E-Glass Fiber (>60%) | |||
| Additives: Hardener, fillers (e.g., SiO₂) |
- Insulated Components: These are made from specialized composite materials designed to block electric current in electrified tracks.
- Manufacturing Process: Generally produced via rolling or forging, often finished with heat treatment.
| Manufacturing Stage | Key Process Details |
|---|---|
| 1. Raw Material Preparation | Selection of high-carbon or high-strength steel to meet structural standards. |
| 2. Heating & Shaping | Heated to ~950-1000°C and shaped via hot rolling or forging for a dense structure. |
| 3. Cutting | Rolled stock is cut to the required fishplate lengths. |
| 4. Hole Creation | Bolt holes are punched or drilled for rail connection. |
| 5. Heat Treatment | Quenching and tempering are applied to enhance hardness, strength, and wear resistance. |
| 6. Machining & Finishing | Final machining for precise dimensions; surfaces are cleaned and polished. |
| 7. Surface Treatment & Inspection | Application of anti-corrosion coatings. Final inspection includes dimensional checks, hardness/tensile testing, and ultrasonic flaw detection. |
- Function: They are designed to connect two rail ends while providing durability and minimizing wear.
Founded in 2008, GNEE RAIL is a leading global manufacturer and supplier of railway components, specializing in high-quality rail fish plates (joint bars/splice bars) with strong production capacity and global service capabilities.
Our rail fish plate portfolio is comprehensive and compliant with international standards including UIC, AREMA, BS, DIN, and GB, covering light rail (8kg-30kg), heavy rail (38kg-75kg), and crane rail (QU70-QU120) systems. We offer diverse types such as insulated joint bars, bulged fish plates, and compromise rail joints,with precise specifications (4-hole/6-hole, 24-inch/36-inch), ensuring excellent mechanical performance.We uphold strict quality control supported by ISO 9001:2015 certification, an in-house inspection center, and third-party audits by SGS and BV. Our one-stop service includes customization, production, packaging, and after-sales support, tailored to clients' project needs.
Click here to obtain the detailed product catalog of GNEE RAIL.
