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High Strength Prestressed Steel Strand Low Relaxation For Prestressed Concrete Anchorage
SWRH 82B High Carbon Steel

High Strength Prestressed Steel Strand Low Relaxation For Prestressed Concrete Anchorage

Prestressed steel strand is made up of multiple high-strength steel wires twisted together, and after stabilization treatment, it has excellent mechanical properties. The standard specification is 7 φ 5 (7 steel wires with a diameter of 5mm), with a tensile strength of over 1860MPa, a yield strength of not less than 1670MPa, and an elongation rate of ≥ 3.5%.

Key Specifications

Product NamePrestressed Steel Strand
Steel GradeSWRH 82B High Carbon Steel
StandardGB/T 5224-2014, ASTM A416, BS 5896, JIS G 3536
FeatrueLow Relaxation
Diameter9.53-21.8mm
PackagePacking In Coils ,with PVC Film And Weaving Bag / Hessian Cloth
ApplicationBridges On Railway And Highway, Overhead Crane Beam, Rock-soil Anchoring Project
Tensile Strength1860Mpa

Trade Information

Brand Name
CSW
Model Number
CSW-PC-1*7
Place of Origin
Shandong, China
Certification
SGS, ISO, CE, ROHS
Standard Packaging
3.0-3.5Tons /Coil
Delivery Time
5-10 Days
Payment Terms
T/T
Supply Ability
70000 Tons/Year
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Product Introduction

Prestressed steel strand is made up of multiple high-strength steel wires twisted together, and after stabilization treatment, it has excellent mechanical properties. The standard specification is 7 φ 5 (7 steel wires with a diameter of 5mm), with a tensile strength of over 1860MPa, a yield strength of not less than 1670MPa, and an elongation rate of ≥ 3.5%. The product is strictly produced in accordance with the GB/T 5224-2014 standard, and the surface can be galvanized, coated with epoxy resin or treated with non bonding according to the needs, meeting the durability requirements in different environments.

Product Advantages

  • Ultra high strength: The strength is 3-4 times that of ordinary steel, which can significantly reduce the self weight of the structure and reduce the amount of materials used Low relaxation: After stabilization treatment, the relaxation loss is ≤ 2.5%, maintaining the prestressing effect for a long time and improving structural safety Corrosion resistance: The special coating can resist acid, alkali, and salt erosion, making it suitable for harsh environments such as the ocean and chemical industry Convenient construction: Good flexibility, easy transportation and tensioning, shortened construction period, and reduced installation costs

Applications

Widely used in bridge engineering (large-span cable-stayed bridges, suspension bridges, box girders), high-rise buildings (super high-rise shear walls, core tubes), water conservancy engineering (dams, aqueducts, water gates), geotechnical anchoring (slope support, foundation pit enclosure), and rail transit (high-speed rail box girders, subway shield tunnel segments) and other fields. With outstanding performance, it has become the core load-bearing component of modern prestressed concrete structures, helping to achieve engineering design goals of large span, lightweight, and durability.

Certifications

Our steel wire rope meets international production standards and has obtained multiple certifications: SGS CE ISO

Technical Data — Diameter, Weight & Breaking Load

Steel Strand StructureNominal Diameter Da /mmDia Tolerance /mmStrand Nominal Cross-Sectional Area Sn/mm²Approx. 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
GradeNominal 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%)

Values are typical mill data. Request the full mill test certificate for your exact specification.

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