Hot Dip Galvanized Steel Strand 1x7 Gj Steel Strand 2.1mm 2.8mm 3.0mm Galvanized Wire Strand
1x7 galvanized steel strand is a single twisted steel strand made of 7 galvanized steel wires with the same diameter, twisted according to the structure of "1 central steel wire + 6 outer steel wires". It is the simplest twisted structural steel strand. The galvanized layer provides excellent corrosion protection for the steel wire and extends the service life of the product.
| 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 |
| Standard Cross-Sectional Area (mm²) | Wire Diameter (mm) | Diameter (mm) | Actual Cross-Sectional Area (mm²) | Minimum Breaking Force (kg) | Weight (kg/km) |
|---|---|---|---|---|---|
| 25 | 7/2.2 | 6.6 | 26.6 | 2630 | 228 |
| 35 | 7/2.6 | 7.8 | 37.2 | 3680 | 318 |
| 50 | 7/3.0 | 9 | 49.5 | 4900 | 424 |
| 50(1) | 19/1.8 | 9 | 48.32 | 4900 | 411 |
| 70 | 19/2.2 | 11 | 72.2 | 7150 | 615 |
| 95 | 19/2.5 | 12.5 | 93.2 | 9230 | 795 |
| 100 | 19/2.6 | 13 | 100.8 | 11090 | 859 |
| 120 | 19/2.8 | 13 | 116.9 | 11600 | 995 |
| 135 | 19/3.0 | 13 | 134.24 | 16200 | 1144 |
| Steel Strand | Cross Section Area (mm²) | Diameter (mm) | Tolerance % | Minimum Breaking Force Of Steel Strand/KN | Approx. weight KG/100M |
|---|---|---|---|---|---|
| 7x0.3 | 0.90 | +2 | 0.49 | / | 0.40 |
| 7x0.33 | 1.00 | 0.60 | 0.49 | ||
| 7x0.4 | 1.20 | 0.88 | 0.71 | ||
| 7x0.5 | 1.50 | 1.37 | 2.10 | 1.11 | |
| 7x0.7 | 2.10 | -3 | 2.69 | 4.13 | 2.18 |
| 7x0.8 | 2.40 | 3.52 | 5.41 | 2.85 | |
| 7x0.9 | 2.70 | 4.45 | 6.84 | 3.60 | |
| 7x1.0 | 3.00 | 5.50 | 7.99 | 4.45 |
The 1+6 symmetrical twisting structure ensures even force distribution on the steel strand, making it less prone to torsional deformation and maintaining stable shape under complex working conditions.
Under the same cross-sectional area, its tensile strength is higher than that of ordinary single steel wire, and it can provide greater bearing capacity per unit weight.
The zinc layer formed by hot-dip galvanizing process is combined with steel wire metallurgy, which can effectively isolate air, moisture and corrosive media, suitable for harsh environments such as humidity and salt alkali.
Compared to multi twisted steel strands, the 1x7 structure has both rigidity and flexibility, making it easy to install and bend on site.
- Communication and Power: As an overhead ground wire and cable fixing device, it supports communication cables and transmission lines
- Construction Engineering: Used for auxiliary fixation of foundation pit support, slope protection, and prestressed tensioning structures
- Transportation: Tensioning devices for road guardrails, mooring cable components for port terminals
- Agriculture, Forestry, and Fisheries: Supporting skeleton for orchard greenhouses, fixed rope for aquaculture cages
Our steel wire rope meets international production standards and has obtained multiple certifications:
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