Description
The Backbone of Modern Concrete Structures
We’ve been supplying PC strand to construction projects for over 15 years, and one thing stands clear – it’s not just about high tensile strength, but how that strength translates to real-world performance. When you’re building a bridge that needs to span 50 meters or a parking garage that must resist heavy loads, our 7-wire PC strand with 1860 MPa tensile strength becomes the silent hero. Unlike regular rebar, we pre-stress this wire before concrete pouring, which means the final structure actively fights against cracking under pressure.
What makes our strand special? Take the relaxation properties for example. While industry standard allows 2.5% force loss over 1000 hours, our 77B grade steel consistently shows ≤2.0% in controlled tests. That’s the difference between a 50-year service life and one requiring premature maintenance. We’ve seen this play out in coastal projects where our 300g/m² zinc-coated strand outperformed competitors in salt spray tests by 30%.
Where Engineering Meets Practicality
The real test happens on-site. A contractor in Vietnam working on a high-rise told us how our 15.2mm diameter strand reduced material waste by 8% compared to their previous supplier – all because of our ±0.03mm diameter tolerance (tighter than standard ±0.05mm). This precision means less adjustment time during anchoring.
- For bridges: 7-wire configurations handle dynamic loads best
- For railway sleepers: 1770 MPa grade balances cost and durability
- For storage tanks: PE-coated strands resist chemical exposure
- For extreme climates: Our epoxy-coated option survives -40°C to 80°C
We control every step – from the high-carbon steel billets (C:0.82% for optimal strength/ductility) to the final stress-relieving process. Each coil gets 100% ultrasonic testing, not just batch sampling.
Made in China, Built for Your Project
Being a factory-direct supplier means we don’t just sell standard products. Need 19-wire strand for a special bridge project? We’ve done that. Require custom packaging for automated tensioning systems? No problem. Our facility can adjust coating thickness, spool size, or even develop hybrid coatings for specific environmental conditions.
What surprises many clients is how much our technical support impacts their workflow. One German engineering firm reduced installation time by 15% after we optimized their strand cutting lengths to match their formwork dimensions. That’s the kind of detail we bring to every project.
Whether you need ASTM A416 Grade 270 or EN 10138 compliant strand, we’ve got it – or we’ll make it. Get in touch for samples or to discuss how we can optimize your next pre-stressed concrete project.
