High-Strength 1x7 12.7mm pc steel strand for Prestressed Concrete Structures – Chunpeng Group
Chunpeng Group, a globally recognized manufacturer with over three decades of expertise in prestressed concrete materials, delivers premium-quality steel strands engineered for durability, performance, and long-term structural integrity. Our 1x7 12.7mm PC Strand, available in 1860 MPa tensile strength grade, is specifically designed for pre-tensioned and post-tensioned applications in demanding infrastructure projects worldwide. Whether you're constructing bridges, high-rise buildings, or industrial facilities, this product offers unmatched reliability and compliance with international standards such as ASTM A416/A416M.
Key features include ultra-high tensile strength, low relaxation properties for consistent load transfer over time, and precise manufacturing that ensures uniformity across every coil. The strand’s seven-wire construction provides flexibility during installation while maintaining excellent resistance to fatigue and environmental stressors. With a minimum breaking strength of up to 183.7 kN (41,300 lbf) and a steel area of 98.7 mm², it meets the rigorous demands of modern civil engineering projects requiring both safety margins and efficient material usage.
This prestressed concrete steel strand is ideal for use in large-span railway and highway bridges, overhead crane beams, rock-soil anchoring systems, multi-story industrial structures, stadiums, mining operations, and other critical infrastructure. Its standardized diameter of 12.7 mm (0.500 in), tolerance-controlled dimensions, and optimized weight of approximately 775 kg per 1,000 meters make it highly suitable for both prefabricated components and on-site cast-in-place elements. The inclusion of low-relaxation characteristics enhances long-term performance under sustained loads—crucial for reducing maintenance costs and extending service life in seismic zones or harsh climates.
Manufactured using raw materials sourced from trusted suppliers like Shougang Group and Tianjin Iron Company, our production process ensures stable quality and consistent output—averaging 10,000 tons monthly. Each coil is carefully packaged with vapor corrosion inhibitors, triple-layer wrapping, and wooden pallet support to prevent damage during transit. Coils are packed eye-up in shipping containers, optimizing space utilization—typically fitting between 20,000–25,000 kg per 20-foot container—to streamline logistics for global clients.
Engineers and project managers seeking durable, high-performance solutions will appreciate how this product supports sustainable construction practices through reduced material waste, improved structural efficiency, and enhanced safety margins. It aligns with green building principles by enabling lighter, stronger designs that reduce overall carbon footprint without compromising resilience.
Customers frequently praise the strand's ease of handling, consistent mechanical properties, and compatibility with various anchorage systems—including dead-end and live-end wedges used in post-tensioning installations. Many report significant reductions in installation time due to the straightness and uniformity of each coil, which minimizes bending issues and simplifies tensioning procedures.
Common inquiries often revolve around specifying the correct grade (e.g., 1860 MPa vs. 1725 MPa), determining the appropriate type (standard, galvanized, weather-resistant, or unbonded), and confirming compliance with local building codes. For accurate quotations, we recommend providing details such as required diameter, strand grade, quantity, and the relevant ASTM standard year. This allows us to tailor solutions that meet regional specifications while ensuring optimal cost-efficiency and technical fit.
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