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.
Heavy-Duty Infrastructure Grade. Engineered for massive post-tensioned and pre-tensioned structural systems, our 15.24mm (0.6 inch) 7-wire bonded prestressed concrete steel strand delivers ultimate breaking load performance, strict metallurgical tolerances, and certified compliance with global civil engineering standards.
15.24mm (0.6 inch) 7-Wire Low-Relaxation Bonded PC Strand | ASTM A416 Grade 270
​Designed for critical heavy-load paths and high-stress structural spans. Every coil adheres to stringent international mechanical benchmarks.
|
Technical Parameter |
Specification Value |
Governing Standard |
|
Nominal Diameter |
15.24 mm (0.600 inch / 3/5") |
ASTM A416 / A416M |
|
Strand Configuration |
7-Wire (1 Center Wire + 6 Helical Outer Wires) |
BS 5896 / EN 10138-3 |
|
Nominal Cross-Sectional Area |
140.0 mm² (0.217 in²) |
GB/T 5224 |
|
Specified Tensile Strength |
1860 MPa (Grade 270) |
ISO 6934-4 |
|
Minimum Breaking Load (MBL) |
≥ 260.7 kN (58,600 lbs) |
ASTM A416 |
|
Relaxation Class |
Class 2 (Low Relaxation, Max 2.5% at 1000h) |
JIS G3536 |
|
Surface Condition |
Uncoated, Bright, Stress-Relieved, Bonded |
Clean |
· ​Maximum Load-Bearing Capacity: The 140.0 mm² cross-section and 260.7 kN MBL provide the robust tensile performance required for heavy-duty, long-span concrete designs.
· ​Optimized Low-Relaxation Property: Advanced thermal-mechanical stabilization significantly minimizes long-term stress loss, ensuring permanent prestressing force over extended structure lifecycles.
· ​Superior Bonding Performance: Precise 7-wire helical geometry creates an optimal mechanical interlock with structural cement grout, eliminating tendon slip in post-tensioned applications.
· ​Full Traceability & Certification: Produced under strict ISO 9001 protocols. Each commercial shipment includes a detailed Mill Test Certificate (MTC) verifying chemical composition and mechanical test logs.
​Engineered for heavy-load structures across large-scale civil and marine projects:
· ​Major Transportation Projects: Long-span highway/railway bridges, continuous rigid-frame bridges, cable-stayed bridges, and viaducts.
· ​Heavy Commercial & Industrial Structures: Nuclear containment vessels, large-span industrial roofs, heavy-load floor systems, and parking structures.
· ​Geotechnical & Marine Engineering: High-capacity ground anchors, rock slopes, dam stabilization, and deepwater port wharfs.
​Q: What international standards do your 15.24mm PC strands satisfy?
A: Our 15.24mm steel strands comply strictly with ASTM A416, BS 5896, EN 10138, and GB/T 5224, matching the specific blueprint demands of international engineering firms.
​Q: What is the standard packaging and container loading capacity?
A: Coils are wrapped in moisture-proof plastic film and heavy-duty anti-rust woven cloth, secured with steel strapping, and palletized. A standard 20ft container safely loads approximately 20 to 27 metric tons.
​Q: Can we request third-party quality inspection prior to shipment?
A: Yes. We fully welcome independent pre-shipment inspections and audits conducted by global agencies such as SGS, BV, Intertek, or TUV.
