从China供应商批量进口7-Wire Prestressed Concrete Steel Strand

This 7-wire prestressed concrete steel strand is a low-relaxation product with a 1x7 configuration, designed for high-strength applications in precast and post-tensioned concrete structures. The strand is available in tensile strengths of 1670 MPa, 1770 MPa, 1860 MPa, and 2000 MPa, meeting the requirements of ASTM A416, BS5896, and GB/T5224 standards. Its corrosion-resistant steel composition ensures durability in harsh environmental conditions, making it suitable for long-span bridges, high-rise buildings, and other critical infrastructure projects.

The strand consists of six outer wires helically wrapped around a single king wire, optimising load distribution and reducing stress concentration. Standard wire diameter for this configuration is 5.0 mm, 5.2 mm, or 5.3 mm, with typical cross-sectional areas of 140 mm² to 150 mm² depending on the grade. The surface is typically coated with a protective layer to enhance resistance to moisture and chloride exposure, which is critical for marine or coastal applications.

This product is primarily used in the construction of precast concrete elements such as beams, slabs, and piles, as well as in the post-tensioning of bridges and parking structures. Buyers include precast concrete manufacturers, civil engineering firms, and infrastructure developers. The strand is supplied in coils or reels, with typical packaging in waterproof wrapping and wooden or steel pallets for export. Confirm MOQ, coil weights, and incoterms with the supplier before ordering.

Tianjin Qiangbang Industrial Co., Ltd. is based in the Huayuan Industrial Park, Nankai District, Tianjin, China. The company operates as an imported-tier supplier, specialising in steel products for construction and industrial applications. Its address at Haiyi International Mansion places it within a key industrial hub for metal manufacturing and export logistics.

The supplier’s profile indicates a harbor trust tier, reflecting verified export capabilities. While the response rate is currently listed as 0.00, this may be due to recent onboarding or data updates. The company focuses on exporting steel strands, with a product range aligned to international standards for prestressed concrete applications. Buyers are advised to confirm response times and verification status directly with the supplier.