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ProductsDiscover Ruibaolong's full range of High-Performance PC Steel Wire, PC Steel Bar, and Cold Drawn Wire. We specialize in SWRH82B Spiral Ribbed, Plain, and Indented surfaces, as well as Hose Reinforcement Wire. ISO 9001 certified manufacturer for PCCP and infrastructure projects.
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About UsTianjin Ruibaolong Prestressed Steel Strand Co., Ltd. is a leading ISO 9001 certified manufacturer established in 2010. We specialize in producing and exporting high-quality PC wire and steel bars globally.
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BlogAbout Ruibaolong We are a professional metal products manufacturer dedicated to High-Performance PC Steel Wire. With a strong market network covering China and an expanding global footprint, we supply essential materials for bridges, buildings, and infrastructure. Here, we share our journey in connecting the world with strength and durability.
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Spiral Ribbed PC Steel Wire for Railway Sleepers (4.8–7.0 mm)
Designed for Railway Safety. High bonding spiral ribs provide 40% better concrete grip than plain wire. Perfect for high-speed rail sleepers and track slabs.
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Spiral Ribbed PC Steel Wire for Railway Sleepers (4.8–7.0 mm)
Product Details
Product Overview
Spiral Ribbed Prestressed Steel Wire is a high-bond reinforcement specifically designed for pre-tensioned concrete railway sleepers.
Compared with plain or lightly indented wire, the continuous helical rib profile provides superior mechanical anchorage, ensuring reliable prestress transfer and long-term structural stability under dynamic rail loads.
Why Bonding Performance Matters in Railway Sleepers
Railway sleepers are subjected to:
- Continuous vibration from passing trains
- High cyclic axle loads
- Long-term fatigue stress
In pre-tensioned sleepers, prestressing force must be fully transferred from the steel wire into the concrete within a limited transmission length.
Plain wire relies mainly on surface friction, which can lead to:
- Micro-slippage under vibration
- Loss of effective prestress
- End-zone cracking and reduced service life
Spiral ribbed wire solves this problem through positive mechanical interlock, not friction alone.
Key Advantages of Spiral Ribbed PC Wire
Superior Bonding Capacity
The continuous helical ribs act like a screw embedded in concrete, delivering 40–50% higher bonding strength compared to plain or indented wire.
Zero Slippage Under Dynamic Load
Mechanical interlock prevents longitudinal movement even under heavy vibration and repeated loading conditions.
High Fatigue Resistance
Designed to withstand up to 2 million load cycles, making it suitable for high-speed and heavy-load railway systems.
Recommended Specifications for Railway Sleepers
| Item | Specification |
|---|---|
| Diameter Range | 4.8 mm / 5.0 mm / 6.0 mm / 7.0 mm |
| Tensile Strength | 1570 MPa / 1670 MPa / 1770 MPa |
| Surface Profile | Continuous spiral ribbed |
| Delivery Condition | Stress-relieved, coil form |
Applicable Standards
- GB/T 5223
- EN 10138
- ASTM A881
Compliance with project-specific technical requirements can be provided upon request.
Typical Applications
- Pre-tensioned concrete railway sleepers
- High-speed rail track systems
- Heavy-load freight rail infrastructure
Contact & Technical Support
Ruibaolong supplies spiral ribbed prestressed steel wire specifically engineered for railway sleeper production.
👉 Contact our technical team to request specifications, test reports, or samples for evaluation.
Certificate
The company focuses on the research, development, production, and sales of prestressed steel wires and bars. Products are widely used in power poles, pipe piles, floor slabs, sleepers, and other infrastructure and construction fields. The sales network covers the whole country and continues to expand overseas export markets.
Related Products
The company focuses on the research, development, production, and sales of prestressed steel wires and bars. Products are widely used in power poles, pipe piles, floor slabs, sleepers, and other infrastructure and construction fields. The sales network covers the whole country and continues to expand overseas export markets.
Frequently Asked Questions
The company focuses on the research, development, production, and sales of prestressed steel wires and bars. Products are widely used in power poles, pipe piles, floor slabs, sleepers, and other infrastructure and construction fields. The sales network covers the whole country and continues to expand overseas export markets.
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Tianjin Ruibaolong Prestressed Steel Strand Co., Ltd. is one of the professional manufacturers specializing in the research, development, production, and operation of prestressed steel wires, cold-drawn steel wires, and steel wires for roll welding machines.
Address: No. 3, Tianyu Road, Tianyu Science and Technology Park, Jinghai District, Tianjin
Email: globaltrade@rblprestress.com
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