Prestressed steel strands are manufactured from high carbon steel wire rods through processes including acid washing, phosphating, cold drawing, twisting, and stabilization treatment. Each bundle contains 2-7 steel wires with a diameter range of 9.53mm-21.6mm. The product strictly adheres to the GB/T 5224-2014 standard, featuring a yield strength of ≥ 1860MPa and maximum total elongation of ≥ 3.5%, with core properties of high strength and low relaxation. Surface treatments such as galvanizing and epoxy coating are available to meet requirements in various corrosive environments.

• Excellent mechanical properties: Using the Soxhlet treatment process, tensile strength is 3-4 times that of ordinary steel, relaxation loss is ≤ 2.5%, and long-term prestress retention rate exceeds 97%.
• Outstanding construction efficiency: Single bundles have large weight and strong flexibility, significantly reducing threading frequency on site, with construction speed increased by more than 40% compared to ordinary steel bars.
• Durable and reliable: Special anti-corrosion coating withstands Cl⁻ erosion with service life exceeding 50 years in marine engineering and saline alkali environments.
• Accurate cost control: Material utilization rate exceeds 95%, with maintenance costs in later stages only 30% of ordinary steel structures, offering significant cost advantages throughout the entire lifecycle.

Widely used in bridge engineering (large-span cable-stayed bridges, suspension bridge box girders), high-rise buildings (super core tubes, transfer layer structures), water conservancy facilities (dam bodies, prestressed anchoring of aqueducts), rail transit (ballastless track slabs of high-speed railways, shield tunnel segments), and geotechnical anchoring (slope support, foundation pit anchoring). This product serves as the core load-bearing component of modern prestressed concrete structures.

Our steel wire rope meets international production standards and has obtained multiple certifications including SGS, CE, ISO, and others.