
12.7mm 15.2mm Prestressed Concrete Steel Strand ASTM A416 Grade 270 PC Steel Strand
Prestressed steel strand is a steel product made by twisting multiple high-strength steel wires. By applying prestress, it can greatly improve the tensile performance of concrete structures and is the core load-bearing material of prestressed concrete engineering.
Key Specifications
| Product Name | Prestressed Concrete Steel Strand |
|---|---|
| Steel Grade | SWRH 82B High Carbon Steel |
| Featrue | Low Relaxation |
| Tensile Strength | 1860Mpa |
| Diameter | 9.53-21.8mm |
| Package | Packing In Coils ,with PVC Film And Weaving Bag / Hessian Cloth |
| Standard | GB/T 5224-2014, ASTM A416, BS 5896, JIS G 3536 |
| Application | Bridges On Railway And Highway, Overhead Crane Beam, Rock-soil Anchoring Project |
Trade Information
Product Introduction
Prestressed steel strand is a steel product made by twisting multiple high-strength steel wires. By applying prestress, it can greatly improve the tensile performance of concrete structures and is the core load-bearing material of prestressed concrete engineering. Mainstream specifications: Made by twisting 7 steel wires with a diameter of 5mm~7mm, the finished product diameter is usually 12.7mm, 15.2mm, 17.8mm, 21.6mm, etc.
Mechanical properties: The tensile strength can reach 1860MPa, which is more than 6 times that of ordinary steel.
Product Advantages
- High strength: Can effectively reduce the cross-sectional size of the structure and lower engineering costs Flexibility: Convenient for transportation and on-site construction, adaptable to complex structural shapes Durability: Special anti-corrosion treatment can extend the service life of the structure to over a hundred years Standardization: Unified specifications, stable quality, convenient for engineering design and construction
Applications
Bridge engineering: Box girders, cable-stayed cables, and main suspension cables for large-span bridges Building structure: High-rise building floor slabs, transfer floors, prestressed frames Transportation Engineering: Highway slope anchoring, railway sleepers, tunnel support Special engineering: Nuclear power plant containment, dam body, offshore platform structure
Certifications
Our steel wire rope meets international production standards and has obtained multiple certifications such as SGS, CE, ISO, etc.
Technical Data — Diameter, Weight & Breaking Load
| Grade | Nominal Diameter (mm) | Tolerance (mm) | Area of Section (mm²) | Weight of strand (kg/1000m) | Minimum Breaking Load (KN) | Minimum Load at 1% extension (KN) | Elongation not less than (%) | 1000Hrs Relaxation Value Not More Than |
|---|---|---|---|---|---|---|---|---|
| 250 | 9.53 | ±0.41 | 51.61 | 405 | 89.0 | 80.1 | 3.5 | 2.5 | 3.5 |
| 250 | 11.11 | ±0.41 | 69.68 | 548 | 120.1 | 108.1 | 3.5 | 2.5 | 3.5 |
| 250 | 12.70 | ±0.41 | 92.90 | 730 | 160.1 | 144.1 | 3.5 | 2.5 | 3.5 |
| 250 | 15.24 | ±0.41 | 139.35 | 1094 | 240.2 | 216.2 | 3.5 | 2.5 | 3.5 |
| 270 | 9.53 | +0.65/-0.15 | 54.84 | 432 | 102.3 | 92.1 | 3.5 | 2.5 | 3.5 |
| 270 | 11.11 | +0.65/-0.15 | 74.19 | 582 | 137.9 | 124.1 | 3.5 | 2.5 | 3.5 |
| 270 | 12.7 | +0.65/-0.15 | 98.71 | 775 | 183.7 | 165.3 | 3.5 | 2.5 | 3.5 |
| 270 | 15.24 | +0.65/-0.15 | 140.00 | 1102 | 260.7 | 234.6 | 3.5 | 2.5 | 3.5 |
| Steel Grade | Nominal Diameter (mm) | Tolerance (mm) | Area of Section (mm²) | Weight of strand (kg/1000m) | Breaking Load (KN) | Load at 0.2% permanent elongation (≥KN) | Minimum Elongation at Max Load ≥(%) | Relaxation Value 1000h ≤(%) |
|---|---|---|---|---|---|---|---|---|
| SWPR7A | 9.3 | +0.4/-0.2 | 51.61 | 405 | 88.8 | 75.5 | 3.5 | 3.0 |
| SWPR7A | 10.8 | +0.4/-0.2 | 69.68 | 546 | 120.0 | 102.0 | 3.5 | 3.0 |
| SWPR7A | 12 | +0.4/-0.2 | 92.90 | 729 | 160.0 | 136.0 | 3.5 | 3.0 |
| SWPR7A | 15 | +0.4/-0.2 | 138.70 | 1101 | 240.0 | 204.0 | 3.5 | 3.0 |
| SWPR7B | 9.2 | +0.4/-0.2 | 54.84 | 432 | 102.0 | 86.8 | 3.5 | 3.0 |
| SWPR7B | 11.1 | +0.4/-0.2 | 74.19 | 580 | 138.0 | 118.0 | 3.5 | 3.0 |
| SWPR7B | 12.7 | +0.4/-0.2 | 98.71 | 774 | 183.0 | 156.0 | 3.5 | 3.0 |
| SWPR7B | 15.2 | +0.4/-0.2 | 138.70 | 1101 | 261.0 | 222.0 | 3.5 | 3.0 |
Values are typical mill data. Request the full mill test certificate for your exact specification.
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