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Galvanized Steel strand
Our Galvanized PC Strand is a high-strength, low-relaxation solution made from hot-dip galvanized steel wires, ideal for prestressing applications.
Material: Premium high-carbon steel wires
Strand Types:
3-wire strand
7-wire strand (most commonly used)
19-wire strand
Coating: Durable hot-dip galvanized zinc coating for enhanced corrosion protection
Diameter Options: Standard sizes include 9.53mm, 12.7mm, and 15.2mm. Custom diameters are available to meet specific project needs.
Strength Grades: Typically 1860 MPa or higher, depending on project requirements
Surface Finish: Smooth and bright galvanized coating, ensuring uniform corrosion resistance
Standards Compliance: Meets ASTM A416, ASTM A475, EN 10138, BS 5896, and other international standards
Features of Galvanized PC Strand:
Galvanized PC strand is an essential material for modern construction and infrastructure projects that demand high strength, minimal relaxation, and excellent corrosion resistance. Its versatility makes it a trusted choice for bridges, marine structures, and prestressed concrete systems.
Using galvanized PC strand ensures a durable, long-lasting, and cost-effective solution for challenging environments. The strands are hot-dip galvanized, providing superior fatigue resistance and outstanding protection against corrosion.
The hot-dip galvanizing process involves passing single steel wires through a zinc bath, creating a protective zinc layer. The galvanized steel wires are then twisted into strands, typically using seven hot-dip galvanized steel wires. Quality checks, such as the wrapping test, ensure the zinc coating adheres firmly, even after twisting or winding six turns, preventing peeling and maintaining structural integrity.
Where can galvanized PC strand be used?
Arch bridge cable systems
Cable-stayed bridge systems
Suspension bridge cable systems
Prestressed structures not directly in contact with concrete mortar
Construction projects requiring lifting and tension support, including:
Agricultural greenhouses
Photovoltaic mounting suspension systems
Other applications include:
Bridges and concrete structures
Offshore and marine projects
Tunnels and dams
Retaining walls and ground anchors
Industrial buildings
Wind turbine foundations
Galvanized PC strand, reinforced with hot-dip galvanized steel wires, provides reliability and longevity, making it the preferred choice for projects exposed to harsh environmental conditions.
The specifications is conforming with the standard YB/T 152-1999
Specification:12.7mm, 12.9mm, 15.2mm, 15.7mm as per GB/T5224
Tensile Strength: 1860Mpa
Galvanized coating thickness: 190- 400 g/m2
| Structure | Nominal diameter | Tolerance on Diameter | Nominal Area of Section | Weight of strand | Tensile Strength, Rm | Minimum Breaking load,Fm | 0,2% proof force, Fp0.2 | Elongation Lo=500mm, Agt | Curvative of strand | Lay Length | The Relaxation at 1000h (initial load to 70% of nominal max load ) (r/%) Not more than |
| (mm) | (mm) | (mm2) | (kg/1000m) | (N/mm2) | KN | KN | (%) | mm | mm | ||
| 1X7 | 12. 50 | +0.30 -0.10 | 93 | 730 | 1860 | 173 | 154 | 3.5 | 25 | (12-16)D | 2.5 |
| 1X7 | 12. 90 | 100 | 785 | 1860 | 186 | 166 | |||||
| 1X7 | 15.2 | +0.40 -0.20 | 139 | 1091 | 1860 | 259 | 230 | ||||
| 1X7 | 15. 70 | 1 | 1178 | 1860 | 279 | 248 |
Other Specifications:
PC Strand is conforming with ASTM A 416 - Grade 270K - Low Relaxation.
Galvanization Complying to ASTM A 475, Class A.
We support customized packaging ways.
Q: What is a galvanized PC strand?
A: A galvanized PC strand is a high-strength steel strand coated with zinc through a hot-dip galvanizing process. It is widely used in prestressed concrete, bridges, and marine structures due to its excellent corrosion resistance and long-lasting durability.
Q: How are hot-dip galvanized steel wires made?
A: Hot-dip galvanized steel wires are created by passing single steel wires through a molten zinc bath. This forms a protective zinc layer that prevents rust and corrosion. Multiple galvanized wires are then twisted together to form a strong PC strand.
Q: Where can I use galvanized PC strand?
A: Galvanized PC strand is suitable for a variety of applications, including bridges, tunnels, marine structures, industrial buildings, wind turbine foundations, and prestressed concrete systems. It is also ideal for cable-stayed, suspension, and arch bridge systems.
Q: What are the advantages of using galvanized PC strand?
A: The main benefits include high strength, excellent fatigue resistance, and superior corrosion protection. Hot-dip galvanized steel wires ensure the strand can withstand harsh environmental conditions and maintain structural integrity over time.
Q: How do I ensure the quality of a galvanized PC strand?
A: Quality is checked through tests such as the wrapping test, which confirms the zinc layer adhesion. After twisting or winding, the zinc coating should remain intact, ensuring maximum durability and performance in demanding construction projects.
