+86 022 2376 3704
+86 022 2376 3704
Prestressed Material
High Strength Low Relaxation hot-dip Galvanized Steel Strand for Prestress.
Material: High-carbon steel wires
Strand Type:
3-wire strand
7-wire strand (most common)
19-wire strand
Coating: Hot-dip galvanized zinc coating
Diameter: Common diameters include 9.53mm, 12.7mm, and 15.2mm. Custom diameters can be provided.
Strength Grades: Typically 1860 MPa (or higher), depending on project requirements.
Surface Finish: Smooth, bright galvanized coating for uniform corrosion resistance.
Standard Compliance: ASTM A416, ASTM A475, EN 10138, BS 5896, and other international standards.
ADVANTAGES
Galvanized PC Strand is a critical material in modern construction and infrastructure projects requiring high strength, low relaxation, and exceptional corrosion resistance. Its widespread use in bridges, marine structures, and prestressed concrete systems demonstrates its versatility and reliability. By choosing galvanized PC strand, construction professionals ensure durable, long-lasting, and cost-effective solutions for demanding environments.
The strands are galvanized, with strong fatigue resistance and excellent corrosion resistance.
The process of single steel wire passing through the zinc bath is called hot-dip galvanizing, and the galvanized steel strand is twisted by 7 hot-dip galvanized steel wires. The adhesion of zinc layer is checked according to the wrapping test of the galvanized steel wire before twisting or the central steel wire of the finished galvanized steel strand. After 6 turns of winding, the zinc layer of the spiral ring shall not peel off.
Galvanized PC strand is made of multiple steel wires (commonly 3, 7, or 19 wires) that are twisted together to form a single, high-strength strand, ensuring strong load-bearing capacity.
The zinc coating protects the steel strand from corrosion and rust caused by moisture, chemicals, or exposure to aggressive environments. This makes it ideal for long-term projects.
It is commonly used in prestressed concrete structures where tensile stress is applied to enhance the strength and performance of concrete components.
The galvanized layer significantly extends the lifespan of the PC strand, especially in structures exposed to marine environments, industrial zones, or extreme weather.
Galvanized PC strands exhibit low relaxation properties, meaning they maintain their tension over time with minimal loss, ensuring structural stability.
PC strands are available in various diameters and configurations to suit the specific requirements of a project.
USE
-Where can our galvanized pc strand use?
Arch bridge cable system
Cable-stayed Bridge system
Suspension Bridge Cable system
Prestressed structure not directly contacting with concrete mortar
Buildings for lifting and fixing tension elements, for instance, construction of agricultural greenhouse; Photovoltaic Mounting Suspension System
● Bridges
● Concrete Structures
● Offshore and Marine Projects
● Tunnels and Dams
● Retaining Walls and Ground Anchors
● Industrial Buildings
● Wind Turbine Foundations
-Some common attentions in using of our galvanized pc strand.
The deflection tensile coefficient of galvanized steel strand normally used (not for bridge cable system) shall not be greater than 28%.
The deflection tensile coefficient of galvanized steel strand for bridge cable system shall be no more than 20%.
The fatigue test of galvanized steel strand in general applications (not for bridge cable system) , steel strand shall not break after being subjected to 2 million times of load.
The galvanized steel strand shall have a continuous zinc layer surface, free of local dezincification, iron exposure and other defects.
SPECIFICATIONS
The specifications is conforming with 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.
Whether you'd like to get more info on what, need help with what you're creating anytime… anywhere.
Yuanxian High-tech Material is a company serving a worldwide customers base providing innovative and reliable product solution that recognizes the value of customer care.
Quick Links
Product Category
Subscribe Newsletter
Welcome to subscribe toour email message!
