Contact Info
- Tel: +86-311-87813582
- Fax: +86-311-87829648
- Email: Kaiwork@126.com
- Whatsapp: +86 86 138 3318 2035
- Add: No.345, Youyi North Street, Shijiazhuang City, Hebei Province, China.
Engineering-Grade Structural Integrity. Manufactured for high-load post-tensioned and pre-tensioned applications, our 11.11mm 7-wire bonded prestressed concrete steel strand delivers uncompromising tensile performance, strict metallurgical tolerances, and certified compliance with global infrastructure standards.
11.11mm 7-Wire Low-Relaxation Bonded PC Strand | Structural Engineering Grade
​Designed for critical load paths and high-stress environments. Every coil is engineered to meet strict international mechanical standards.
|
Technical Parameter |
Specification Value |
Governing Standard |
|
Nominal Diameter |
11.11 mm (0.438 inch) |
ASTM A416 / A416M |
|
Strand Configuration |
7-Wire (1 Center Wire + 6 Helical Outer Wires) |
BS 5896 / EN 10138-3 |
|
Nominal Cross-Sectional Area |
65.0 mm² |
GB/T 5224 |
|
Specified Tensile Strength |
1860 MPa (Grade 270) |
ISO 6934-4 |
|
Minimum Breaking Load (MBL) |
≥120.9 kN |
ASTM A416 |
|
Relaxation Class |
Class 2 (Low Relaxation, Max 2.5% at 1000h) |
JIS G3536 |
|
Surface Condition |
Uncoated, Bright, Stress-Relieved, Bonded |
Clean, Corrosion-Inhibited Free |
· ​Optimized Low-Relaxation Performance: Advanced thermal-mechanical stabilization reduces initial stress loss, guaranteeing long-term structural prestress retention over design life cycles.
· ​Superior Mechanical Interlock: The precise helical geometry of the 7-wire layout maximizes shear bond strength between the steel tendon and structural grout/concrete.
· ​High Strength-to-Weight Ratio: High-carbon structural steel wire rods deliver maximum ultimate breaking load while minimizing dead weight in heavy civil designs.
· ​Traceable Metallurgical Quality: Produced under ISO 9001 quality management systems. Complete Mill Test Certificates (MTC) supplied with full chemical composition and mechanical test logs.
​Engineered for heavy-load-bearing structural applications across global construction sectors:
· ​Transportation Infrastructure: Long-span highway/railway bridges, box girders, precast segmental bridges, and elevated viaducts.
· ​Commercial & Industrial Frameworks: High-rise building floor systems, parking structures, and large-span industrial roofs.
· ​Geotechnical & Heavy Civil Engineering: Rock/soil ground anchoring, dam reinforcement, containment structures, and marine port wharfs.
· ​Global Certifications: Fully compliant with ASTM A416, BS 5896, EN 10138, and ISO 6934.
· ​Rigorous Testing Protocol: Batch testing covers ultimate tensile strength, yield strength, elongation, and isothermal relaxation.
· ​Third-Party Inspection: Independent factory audits and pre-shipment inspections by SGS, BV, Intertek, or TUV are fully accommodated.
· ​Standard Export Configuration: Wrapped in moisture-proof plastic film and heavy-duty anti-rust woven cloth, secured with high-tensile steel strapping.
· ​Handling & Lifting: Wooden palletized coils designed for safe forklift and crane handling, optimized for 20ft/40ft container export shipping.
​Need precise pricing, mill test samples, or project-specific delivery schedules? Submit your technical specifications or Bill of Quantities (BOQ) to our engineering sales team.
​Q: What international standards do your 11.11mm PC strands comply with?
A: Our steel strands are manufactured in strict compliance with ASTM A416, BS 5896, EN 10138, and GB/T 5224, making them fully compatible with global engineering project requirements.
​Q: Can you provide Mill Test Certificates (MTC) and third-party inspection?
A: Yes. Every batch comes with a detailed Mill Test Certificate. We also welcome third-party inspections such as SGS, BV, or Intertek prior to shipment.
​Q: What is the standard packaging for export?
A: Standard export packaging includes moisture-proof plastic film, woven cloth wrapping, strapped with steel bands, and securely loaded onto wooden pallets for container shipping.
