SWRH77B PC Strand Sourcing Guide (12.7mm & 15.24mm)

SWRH77B PC strands represent the high-performance tier of prestressed concrete reinforcement, primarily utilized in large-span bridges and high-rise construction due to their 1860 MPa (Grade 270) tensile strength and low-relaxation properties. Tjwasungen Hyxpcwire

Product Specifications & Raw Material

* Material Grade: SWRH77B is a JIS G3506 high-carbon steel rod (0.75%–0.80% carbon), essential for achieving consistent 1860 MPa strength. Tjwasungen

* Configurations: Standard 7-wire strands in 12.7mm (1/2") and 15.24mm (0.6") diameters are the dominant market choices. Tjwasungen

* Performance: Stress-relieved treatment ensures Low Relaxation (LR), with load loss $\le 2.5\%$ after 1,000 hours. Tjwasungen Wikipedia

2026 Market Insights

* Price Trends: Current wholesale prices for SWRH77B PC strands range from $520 to $1,100 per ton, depending on order volume and coatings. Alibaba Alibaba Large-scale infrastructure projects in North America and the Middle East are expected to keep demand high through 2026. Globalstrand Tjwasungen

* Cost Drivers: Pricing is highly sensitive to iron ore fluctuations and electricity rates due to the energy-intensive drawing process. Tjwasungen

* Regional Outlook: The West Coast of North America maintains a 10–15% price premium due to logistics, while the Gulf Coast offers more competitive rates near domestic production hubs. Tjwasungen

Sourcing Recommendations

I have identified 30+ products and 17+ specialized suppliers capable of providing SWRH77B strands with full ASTM A416 compliance. Many listed manufacturers offer raw material customization, allowing for precise SWRH77B or 82B sourcing to meet specific project fatigue requirements.

The detailed product and supplier lists, including technical data and verified contact information, are available in the files below.