
ASTM A416 Grade 270 Prestressed Concrete Steel Strand 9.53mm 12.7mm 15.2mm
Prestressed steel strand is a high-strength steel cable composed of multiple steel wires twisted together. After stress relief treatment, it is used in prestressed concrete structures to enhance bearing capacity and reduce deformation.
Key Specifications
| Product Name | Prestressed Concrete Steel Strand |
|---|---|
| Steel Grade | SWRH 82B High Carbon Steel |
| Standard | GB/T 5224-2014, ASTM A416, BS 5896, JIS G 3536 |
| Featrue | Low Relaxation |
| Diameter | 9.53mm-21.8mm |
| Package | Packing In Coils ,with PVC Film And Weaving Bag / Hessian Cloth |
| Tensile Strength | 1860Mpa |
| Application | Bridges On Railway And Highway, Overhead Crane Beam, Rock-soil Anchoring Project |
Trade Information
Product Introduction
Prestressed steel strand is a high-strength steel cable composed of multiple steel wires twisted together. After stress relief treatment, it is used in prestressed concrete structures to enhance bearing capacity and reduce deformation. With a common tensile strength grade of 1860 MPa, it is primarily used for large-span structures including bridges, buildings, and water conservancy projects.
This product enhances the compressive performance of concrete through prestressing technology and is commonly employed in post-tensioning construction applications. Product Specifications GB/T 5224-2014 Standard ASTM A416 1X7 Standard JIS G 3536 Standard Product Display
Product Advantages
- Excellent Material: Manufactured from high-quality high carbon steel wire rod 82B, which has undergone stabilization treatment High Tensile Strength: Up to 1860MPa with excellent toughness, suitable for bridges, high-rise buildings, water conservancy projects, and more Low Relaxation Characteristics: Relaxation rate ≤ 1%, minimal stress loss during long-term use, ensuring prestressed structure durability and reducing maintenance costs Complete Specifications: Various models ranging from 9.53mm to 21.8mm diameters to meet different engineering requirements, with specialized tensioning equipment and anchoring devices available
Applications
s PC Strands are primarily used in prestressed concrete structure reinforcement applications including: Large-span bridges for railway and highway infrastructure Overhead crane beams Rock-soil anchoring projects Multi-storey industrial buildings Stadiums and sports facilities Coal mining operations Product Certification Our steel wire rope meets international production standards and holds multiple certifications including: SGS Certification CE Certification ISO Certification
Technical Data — Diameter, Weight & Breaking Load
| Steel Strand Structure | Nominal Diameter (mm) | Diameter Tolerance (mm) | Nominal Cross-Sectional Area (mm²) | Approx. Weight per Meter (g/m) | Core Wire Diameter Range (%) |
|---|---|---|---|---|---|
| 1x7 | 9.50 (9.53) | +0.30 | 54.8 | 430 | ≥2.5 |
| 1x7 | 11.10 (11.11) | ±0.15 | 74.2 | 582 | - |
| 1x7 | 12.70 | - | 98.7 | 775 | - |
| 1x7 | 15.20 (15.24) | - | 140 | 1101 | - |
| 1x7 | 15.70 | +0.40/-0.15 | 150 | 1178 | - |
| 1x7 | 17.80 (17.78) | - | 191 (189.7) | 1500 | - |
| 1x7 | 18.90 | - | 220 | 1727 | - |
| 1x7 | 21.60 | - | 285 | 2237 | - |
| Grade | Nominal Diameter (mm) | Tolerance (mm) | Section Area (mm²) | Strand Weight (kg/1000m) | Minimum Breaking Load (KN) | Minimum Load at 1% Extension (KN) | Elongation (%) | 1000Hrs Relaxation (%) |
|---|---|---|---|---|---|---|---|---|
| 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) | Section Area (mm²) | Strand Weight (kg/1000m) | Breaking Load (KN) | Load at 0.2% Permanent Elongation (KN) | Minimum Elongation (%) | Relaxation Value 1000h (%) |
|---|---|---|---|---|---|---|---|---|
| SWPR7A | 9.3 | - | 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 | - | 138.70 | 1101 | 240.0 | 204.0 | ≥3.5 | ≤3.0 |
| SWPR7B | 9.2 | - | 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 | - | 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.
Related Products
12.7mm 15.2mm Prestressed Concrete Steel Strand ASTM A416 Grade 270 PC Steel Strand
Low Relaxation PC Strand 9.53mm 15.2mm 12.7mm ASTM A416 Galvanized PC Strand 1*7