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High Carbon Prestressed Concrete Steel Strand 12.7mm Low Relaxation 7 Wire Prestressing Strand
High Carbon Prestressed Concrete Steel Strand 12.7mm Low Relaxation 7 Wire Prestressing Strand
High Carbon Prestressed Concrete Steel Strand 12.7mm Low Relaxation 7 Wire Prestressing Strand
High Carbon Prestressed Concrete Steel Strand 12.7mm Low Relaxation 7 Wire Prestressing Strand
High Carbon Prestressed Concrete Steel Strand 12.7mm Low Relaxation 7 Wire Prestressing Strand
High Carbon Prestressed Concrete Steel Strand 12.7mm Low Relaxation 7 Wire Prestressing Strand
High Carbon Prestressed Concrete Steel Strand 12.7mm Low Relaxation 7 Wire Prestressing Strand
High Carbon Prestressed Concrete Steel Strand 12.7mm Low Relaxation 7 Wire Prestressing Strand
High Carbon Prestressed Concrete Steel Strand 12.7mm Low Relaxation 7 Wire Prestressing Strand
High Carbon Prestressed Concrete Steel Strand 12.7mm Low Relaxation 7 Wire Prestressing Strand
Specifications
Brand Name :
Bangyi
Model Number :
BY-PC-1*7
Certification :
SGS, ISO, CE, ROHS
Place of Origin :
Shandong, China
Payment Terms :
T/T
Supply Ability :
70000 Tons/Year
Delivery Time :
5-10 Days
Packaging Details :
3.0-3.5Tons /Coil
Product Name :
PC 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 :
9.53-21.8mm
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
Description
High Carbon Prestressed Concrete Steel Strand 12.7mm Low Relaxation 7 Wire Prestressing Strand
Product Introduction

Prestressed steel strands are manufactured from high-strength carbon steel wire rods through cold drawing, twisting, and stabilization processes. Each strand consists of 7 high-strength steel wires with a diameter of 15.2mm and tensile strength of ≥1860MPa. Produced in strict compliance with GB/T 5224-2014 standards, these strands feature surface treatments including hot-dip galvanizing or epoxy coating for excellent corrosion resistance. The relaxation rate is ≤2.5%, ensuring long-term stress maintenance.

Product Parameters
High Carbon Prestressed Concrete Steel Strand 12.7mm Low Relaxation 7 Wire Prestressing Strand
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
1x79.50 (9.53)+0.30 -0.1554.84302.5
1x711.10 (11.11)+0.30 -0.1574.25822.5
1x712.70+0.30 -0.1598.77752.5
1x715.20 (15.24)+0.30 -0.1514011012.5
1x715.70+0.40 -0.1515011782.5
1x717.80 (17.78)+0.40 -0.15191 (189.7)15002.5
1x718.90+0.40 -0.1522017272.5
1x721.60+0.40 -0.1528522372.5
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
2509.53±0.4151.6140589.080.13.52.5 (70%) / 3.5 (80%)
25011.11±0.4169.68548120.1108.13.52.5 (70%) / 3.5 (80%)
25012.70±0.4192.90730160.1144.13.52.5 (70%) / 3.5 (80%)
25015.24±0.41139.351094240.2216.23.52.5 (70%) / 3.5 (80%)
2709.53+0.65 -0.1554.84432102.392.13.52.5 (70%) / 3.5 (80%)
27011.11+0.65 -0.1574.19582137.9124.13.52.5 (70%) / 3.5 (80%)
27012.7+0.65 -0.1598.71775183.7165.33.52.5 (70%) / 3.5 (80%)
27015.24+0.65 -0.15140.001102260.7234.63.52.5 (70%) / 3.5 (80%)
Product Display
High Carbon Prestressed Concrete Steel Strand 12.7mm Low Relaxation 7 Wire Prestressing Strand
Product Advantages
  • Ultra high strength and toughness: Breaking force ≥260kN, elongation ≥3.5%, maintaining structural integrity under extreme loads
  • Low relaxation characteristics: Low-temperature stabilization technology reduces long-term stress loss by 40% compared to ordinary steel strands, ensuring long-term structural safety
  • Strong corrosion resistance: Hot-dip galvanized layer thickness ≥275g/㎡, epoxy coating adhesion ≥10MPa, suitable for harsh environments including ocean and salt alkali conditions
  • Convenient construction: Lightweight and flexible single bundles facilitate easy threading and tensioning on site, increasing construction efficiency by over 30% compared to traditional steel bars
Product Applications

Widely used in large-span bridges (suspension bridges, cable-stayed bridge box girders), high-rise buildings (super high-rise shear wall structures), hydraulic engineering (dams, prestressed anchoring of aqueducts), rail transit (ballastless track slabs for high-speed rail), and geotechnical anchoring (slope support, foundation pit anchoring) and other fields.

High Carbon Prestressed Concrete Steel Strand 12.7mm Low Relaxation 7 Wire Prestressing Strand
Product Certifications

Our steel wire rope meets international production standards and has obtained multiple certifications including:

SGS
CE
ISO
High Carbon Prestressed Concrete Steel Strand 12.7mm Low Relaxation 7 Wire Prestressing Strand
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High Carbon Prestressed Concrete Steel Strand 12.7mm Low Relaxation 7 Wire Prestressing Strand

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Product Detail
Brand Name :
Bangyi
Model Number :
BY-PC-1*7
Certification :
SGS, ISO, CE, ROHS
Place of Origin :
Shandong, China
Payment Terms :
T/T
Supply Ability :
70000 Tons/Year
Contact Supplier
High Carbon Prestressed Concrete Steel Strand 12.7mm Low Relaxation 7 Wire Prestressing Strand
High Carbon Prestressed Concrete Steel Strand 12.7mm Low Relaxation 7 Wire Prestressing Strand
High Carbon Prestressed Concrete Steel Strand 12.7mm Low Relaxation 7 Wire Prestressing Strand
High Carbon Prestressed Concrete Steel Strand 12.7mm Low Relaxation 7 Wire Prestressing Strand
High Carbon Prestressed Concrete Steel Strand 12.7mm Low Relaxation 7 Wire Prestressing Strand

Shandong Bangyi Metal Products Co., Ltd

Verified Supplier
1 Years
shandong, binzhou
Since 1996
Main Products :
Galvanized Steel Wire Rope, Plastic Coated Steel Wire Rope, Stainless Steel Wire Rope
Total Annual :
50 million US dollars-70 million US dollars
Certification Level :
Verified Supplier
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