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Bonded PC Strand

Our Bonded PC Strand is manufactured strictly in accordance with international standards such as ASTM A416, BS 5896, ISO 6934-4, and AS/NZS4672.1. Utilizing high-quality high-carbon steel wire rods, our 7-wire strands undergo rigorous stabilizing treatment to ensure exceptionally low relaxation and high tensile strength (Grade 270 / 1860 MPa). It is the premier choice for demanding pre-tensioning and post-tensioning engineering projects globally.

Bonded PC Strand (Prestressed Concrete Steel Strand)

 

Key Features & Advantages

High Tensile Strength: Available in Grade 270 with a minimum tensile strength of 1860 MPa, offering superior load-bearing capacity.

Exceptionally Low Relaxation: Relaxation value at 1000 hours is less than 2.5% under 70% initial load, ensuring long-term structural stability.

Superior Elongation & Ductility: High uniform elongation ensures excellent safety margins and seismic resistance during tensioning.

Strict Quality Control: 100% traceabilities from raw materials to finished products. Passed deflection tensile tests and fatigue tests.

 

Typical Applications

This product is widely utilized in major infrastructure and civil engineering, including:

Bridges & Viaducts: Pre-cast concrete girders, segmental bridges, and stay cables.

Buildings & Structures: Large-span industrial workshops, commercial high-rises, and post-tensioned slabs.

Geotechnical Anchoring: Rock/soil anchors, retaining walls, and slope stabilization projects.

Special Containments: LNG storage tanks, nuclear power plant containment vessels, and silos.

 

Packaging & Shipping

We understand the harsh conditions of international transit. Therefore, we provide robust sea-worthy packaging:

Coil Weight: Commonly 2.5 - 3.5 Metric Tons per coil, or customized to clients' lifting capacities.

Inner Protection: Wrapped with heavy-duty waterproof plastic film and anti-rust paper to isolate moisture.

Outer Protection: Encased in a durable polypropylene woven sheet and secured tightly with 6-8 heavy steel bands.

Palletization: Positioned securely on wooden pallets/skids with eye-to-sky or eye-to-wall loading configurations.

 

Technical Specification Table

ASTM A416 Standard Technical Data Sheet

Uncoated Seven-Wire Steel Strand for Prestressed Concrete (Grade 270 / 1860 MPa)

 

Nominal Diameter (mm)

Nominal Diameter (inch)

Steel Area (mm² )

Weight (kg/1000m)

Min. Breaking Load (kN)

Min. Load at 1% Extension (Low-Relaxation, kN)

Elongation in 600mm min. (%)

9.53

3/8"

54.8

432

102.3

92.1

≥3.5%

11.11

7/16"

74.2

582

137.9

124.1

≥3.5%

12.70

1/2"

98.7

775

183.7

165.3

≥3.5%

13.20

0.520"

107.7

844

200.2

180.1

≥3.5%

14.29

9/16"

123.9

970

230.0

207.0

≥3.5%

15.24

0.600"

140.0

1102

260.7

234.6

≥3.5%

17.78

0.700"

189.7

1487

353.2

318.0

≥3.5%