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7 Wire Prestressed Concrete Steel Strand 1860Mpa Low Relaxation PC Strand 12.7mm ASTM A416 Grade
Place of Origin:
Shandong, China
Brand Name:
Bangyi
Certification:
SGS, ISO, CE, ROHS
Model Number:
BY-PC-1*7
Standard Packaging:
3.0-3.5Tons /Coil
Delivery Time:
5-10 Days
Payment Terms:
T/T
Supply Ability:
70000 Tons/Year
Product Details
Highlight:
7 Wire Prestressed Concrete Steel Strand
,Low Relaxation PC Strand 12.7mm
,Prestressed Concrete Steel Wire Strand
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 Relaxtion
Tensile Strength:
1860Mpa
Diameter:
9.53-21.8mm
Package:
Packing In Coils ,with PVC Film And Weaving Bag / Hessian Cloth
Application:
Bridges On Railway And Highway, Overhead Crane Beam, Rock-soil Anchoring Project
Product Description
7 Wire Prestressed Concrete Steel Strand 1860Mpa Low Relaxation PC Strand 12.7mm ASTM A416 Grade
Product Introduction
Prestressed steel strands are manufactured from high carbon steel wire rods through processes including acid washing, phosphating, cold drawing, twisting, and stabilization treatment. Each bundle contains 2-7 steel wires with a diameter range of 9.53mm-21.6mm. The product strictly adheres to the GB/T 5224-2014 standard, featuring a yield strength of ≥ 1860MPa and maximum total elongation of ≥ 3.5%, with core properties of high strength and low relaxation. Surface treatments such as galvanizing and epoxy coating are available to meet requirements in various corrosive environments.
Product Parameters
GB/T 5224-2014 Standard
| Steel Strand Structure | Nominal Diameter Da /mm | Dia Tolerance /mm | Strand Nominal Cross-Sectional Area Sn/mm² | Approx. Weight per meter(g/m) | Range(extened)% of core wire's diameter not less than |
|---|---|---|---|---|---|
| 1x7 | 9.50 (9.53) | +0.30 -0.15 | 54.8 | 430 | 2.5 |
| 11.10 (11.11) | 74.2 | 582 | |||
| 12.70 | 98.7 | 775 | |||
| 15.20 (15.24) | 140 | 1101 | |||
| 15.70 | +0.40 -0.15 | 150 | 1178 | ||
| 17.80 (17.78) | 191 (189.7) | 1500 | |||
| 18.90 | 220 | 1727 | |||
| 21.60 | 285 | 2237 |
ASTM A416 1X7 Standard
| 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 (70% Initial Load) 3.5 (80% Initial Load) |
| 11.11 | 69.68 | 548 | 120.1 | 108.1 | 3.5 | |||
| 12.70 | 92.90 | 730 | 160.1 | 144.1 | 3.5 | |||
| 270 | 9.53 | +0.65 -0.15 | 54.84 | 432 | 102.3 | 92.1 | 3.5 | 2.5 (70% Initial Load) 3.5 (80% Initial Load) |
| 11.11 | 74.19 | 582 | 137.9 | 124.1 | 3.5 | |||
| 12.7 | 98.71 | 775 | 183.7 | 165.3 | 3.5 | |||
| 15.24 | 140.00 | 1102 | 260.7 | 234.6 | 3.5 |
Product Shown
Product Advantages
- Excellent mechanical properties: Using the Soxhlet treatment process, tensile strength is 3-4 times that of ordinary steel, relaxation loss is ≤ 2.5%, and long-term prestress retention rate exceeds 97%.
- Outstanding construction efficiency: Single bundles have large weight and strong flexibility, significantly reducing threading frequency on site, with construction speed increased by more than 40% compared to ordinary steel bars.
- Durable and reliable: Special anti-corrosion coating withstands Cl⁻ erosion with service life exceeding 50 years in marine engineering and saline alkali environments.
- Accurate cost control: Material utilization rate exceeds 95%, with maintenance costs in later stages only 30% of ordinary steel structures, offering significant cost advantages throughout the entire lifecycle.
Product Application
Widely used in bridge engineering (large-span cable-stayed bridges, suspension bridge box girders), high-rise buildings (super core tubes, transfer layer structures), water conservancy facilities (dam bodies, prestressed anchoring of aqueducts), rail transit (ballastless track slabs of high-speed railways, shield tunnel segments), and geotechnical anchoring (slope support, foundation pit anchoring). This product serves as the core load-bearing component of modern prestressed concrete structures.
Product Certificate
Our steel wire rope meets international production standards and has obtained multiple certifications including SGS, CE, ISO, and others.
Inquiry
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