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.
British Standard Infrastructure Grade. Engineered strictly in accordance with BS 5896, our 12.9mm Super Grade 7-wire bonded prestressed concrete steel strand delivers exceptional breaking load capacity, strict metallurgical tolerances, and certified compliance for international civil engineering and structural projects.
BS 5896 12.9mm Super Grade Bonded PC Strand | 7-Wire Low-Relaxation Steel Strand
​Designed for critical load paths and high-stress structural spans under British and European design codes. Every coil adheres to rigorous mechanical benchmarks.
|
Technical Parameter |
Specification Value |
Governing Standard |
|
Nominal Diameter |
12.9 mm (Super Grade) |
BS 5896 / EN 10138-3 |
|
Strand Configuration |
7-Wire (1 Center Wire + 6 Helical Outer Wires) |
BS 5896 |
|
Nominal Cross-Sectional Area |
100 mm² |
BS 5896 |
|
Specified Tensile Strength |
1860 MPa (Super Grade) |
BS 5896 |
|
Minimum Breaking Load (MBL) |
≥ 186 kN |
BS 5896 |
|
Relaxation Class |
Class 2 (Low Relaxation, Max 2.5% at 1000h) |
BS 5896 / JIS G3536 |
|
Surface Condition |
Uncoated, Bright, Stress-Relieved, Bonded |
Clean |
· ​BS 5896 Certified Performance: Manufactured specifically to meet the stringent mechanical and dimensional requirements of British Standards for prestressed concrete.
· ​Superior 1860 MPa Tensile Strength: High-carbon structural steel wire rods deliver an impressive 186 kN minimum breaking load, ensuring maximum structural safety factors.
· ​Low-Relaxation Stability: Advanced thermal-mechanical stabilization restricts stress relaxation to a maximum of 2.5% at 1000 hours, maintaining permanent prestressing force over extended lifecycles.
· ​Enhanced Bonding Interlock: The precise 7-wire helical geometry creates an optimal mechanical bond with structural grout, preventing slippage in post-tensioned applications.
​Engineered for heavy-load-bearing structures across global markets utilizing British Standards:
· ​Transportation Infrastructure: Highway and railway bridges, viaducts, precast segmental girders, and flyovers.
· ​Commercial & Civil Structures: High-rise building frames, heavy-load floor systems, and large-span industrial roofs.
· ​Geotechnical & Marine Engineering: High-capacity ground anchors, rock slopes, dam stabilization, and port wharfs.
​Q: Do these strands fully comply with BS 5896 specifications?
A: Yes. Our 12.9mm strands are produced in strict compliance with BS 5896 (and equivalent EN 10138 standards), ensuring complete acceptance by international consultants and engineers.
​Q: What is the standard export packaging and container load?
A: Coils are wrapped in moisture-proof plastic film and heavy-duty anti-rust woven cloth, secured with high-tensile steel strapping, and palletized. A standard 20ft container loads approximately 20 to 27 metric tons.
​Q: Can we request third-party quality inspection prior to shipment?
A: Yes. We fully support independent pre-shipment inspections and audits conducted by recognized global agencies such as SGS, BV, Intertek, or TUV.
