1×7 Galvanized Steel Wire Strand
1×7 structural galvanized steel strand is a single stranded metal product manufactured by twisting 7 hot-dip galvanized steel wires in the same direction or alternately using advanced twisting processes. Compliant with YB/T 5004-2012 standard, this product features a steel wire strength range of 1175-1570MPa and offers exceptional high strength, corrosion resistance, and easy installation characteristics.
Technical Specifications
YB/T 5004-2012 Standard Specifications
| Structure |
Wire Diameter (mm) |
Wire Strand Diameter (mm) |
Cross Section Area (mm²) |
Nominal Tensile Strength/MPa |
Approx. weight (kg/km) |
|
|
|
|
1270 |
1370 |
1470 |
1570 |
1670 |
|
| 1x7 | 1.00 | 3.00 | 5.50 | 6.43 | 6.93 | 7.44 | 7.94 | 8.45 | 43.70 |
| 1x7 | 1.20 | 3.60 | 7.92 | 9.25 | 9.98 | 10.71 | 11.44 | 12.17 | 62.90 |
| 1x7 | 1.40 | 4.20 | 10.78 | 12.60 | 13.59 | 14.58 | 15.57 | 16.56 | 85.60 |
| 1x7 | 1.60 | 4.80 | 14.07 | 16.44 | 17.73 | 19.03 | 20.32 | 21.62 | 112.00 |
| 1x7 | 1.80 | 5.40 | 17.81 | 20.81 | 22.45 | 24.09 | 25.72 | 27.36 | 141.00 |
| 1x7 | 2.00 | 6.00 | 21.99 | 25.69 | 27.72 | 29.74 | 31.76 | 33.79 | 175.00 |
| 1x7 | 2.20 | 6.60 | 26.61 | 31.10 | 33.55 | 36.00 | 38.45 | 40.88 | 210.00 |
| 1x7 | 2.60 | 7.80 | 37.17 | 43.43 | 46.85 | 50.27 | 53.69 | 57.11 | 295.00 |
| 1x7 | 3.00 | 9.00 | 49.50 | 57.86 | 62.42 | 66.98 | 71.54 | 76.05 | 411.90 |
| 1x7 | 3.20 | 9.60 | 56.30 | 65.78 | 70.46 | 76.14 | 81.32 | 86.50 | 447.00 |
| 1x7 | 3.50 | 10.50 | 67.35 | 78.69 | 84.89 | 91.08 | 97.28 | 103.48 | 535.00 |
| 1x7 | 3.80 | 11.40 | 79.39 | 92.76 | 100.10 | 107.40 | 114.70 | 121.97 | 630.00 |
| 1x7 | 4.00 | 12.00 | 87.96 | 102.80 | 110.90 | 119.00 | 127.00 | 135.14 | 698.00 |
Product Overview
Key Advantages
- Excellent Corrosion Resistance: Hot-dip galvanized surface with zinc layer thickness exceeding 20μm, providing effective protection against atmospheric, rainwater, salt spray, and mild acid-base corrosion
- High Strength and Load Capacity: Single steel wire tensile strength reaches 1270-1860MPa. The 1×7 structure achieves uniform stress distribution through twisting technology, with overall breaking force exceeding 6.5 times that of single steel wire of same diameter
- Optimized Structural Design: 1+6 twisting structure (1 central steel wire + 6 outer steel wires) ensures regular geometric shape and smooth surface
- Superior Process Performance: Moderate flexibility enables bending and folding operations, facilitating on-site cutting, installation, and anchoring
Applications
Electric Power & Communication
- Ground wire (lightning protection wire) for overhead transmission lines, providing mechanical support and lightning protection
- Strengthening core for communication optical cables to enhance line tensile strength
- Cable systems for substations and communication towers to improve structural stability
Transportation & Construction
- Blocking cables for highway crash barriers to absorb impact energy
- Suspension components for building curtain walls to bear glass curtain wall loads
- Temporary support structures for large venues during construction phase
Industrial & Agricultural
- Mooring column cables at port terminals for securing ship berths
- Skeleton support for greenhouses to resist wind and snow loads
- Traction steel cables for mining equipment in lifting and dragging operations
Quality Certifications
Our steel wire rope meets international production standards and holds multiple certifications: