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Application
- Aerospace & Aviation
- Low-Voltage Electrical (Electric Brush Wires）
- Chemical & Metallurgical Engineering Equipment
- Industrial Machinery & Equipment Clusters
- Superconducting Technology Applications
- Rail Transit Equipment
- Smart Grid & Power Transmission/Distribution Applications
- New Energy Wind Power
- Power Storage Equipment
- New Energy Vehicle Systems
- Products
China Square Copper Braided Wires - High Flexibility, Excellent Conductivity | Trusted Suppliers & Factory
Technical Data
Material: Annealed Cu-ETP wires, C11000, copper content ≥ 99.95%
Finish: Bare, tin plating
Packing Modes: In rolls, on spools or wooden drums
Product Display
Type And Specification
| Type | Single Wire Diameter | Elongation, not less than |
| BGTS | 0.10mm (AWG38 ), 0.12mm | 18% |
| BGTSX | 0.10mm (AWG38 ), 0.12mm | 15% |
| BGTSR | 0.05mm (AWG44), 0.07mm(AWG41) | 15% |
Model And Meaning
Customization Upon Request
Round Type: Single Wire Diameter: 0.07mm (AWG41)
| Part No. | Nominal Cross Section (mm²) | Calculating Cross Section (mm²) | Structure | Calculating Outside Diameter (mm) | Max. DC Resistance at 20℃ (Ω/km) | Calculating Weight (kg/km) | ||
| Total Wire Number | Strands×Wire Number Per Strand / Single Wire Diameter (mm) | BGTSR | BGTSRX | |||||
| BGTSR(X)-2 | 2 | 1.93 | 504 | 7×72/0.07 | 2.2 | 9.16 | 9.65 | 18.3 |
| 1.93 | 504 | 7×3×24/0.07 | 2.2 | 9.16 | 9.65 | 18.6 | ||
| BGTSR(X)-3.5 | 3.5 | 3.47 | 903 | 7×3×43/0.07 | 2.7 | 5.35 | 5.51 | 33.3 |
| BGTSR(X)-4 | 4 | 4.01 | 1044 | 12×3×29/0.07 | 2.9 | 4.59 | 4.83 | 39.0 |
| 4.03 | 1050 | 7×3×50/0.07 | 3.0 | 4.59 | 4.83 | 39.0 | ||
| BGTSR(X)-5 | 5 | 4.84 | 1260 | 7×3×60/0.07 | 3.2 | 3.71 | 3.86 | 46.5 |
| 5.02 | 1305 | 15×3×29/0.07 | 3.2 | 3.71 | 3.86 | 48.5 | ||
| BGTSR(X)-6 | 6 | 5.65 | 1470 | 7×3×70/0.07 | 3.6 | 2.93 | 3.21 | 54.2 |
| BGTSR(X)-8 | 8 | 7.75 | 2016 | 12×3×56/0.07 | 4.2 | 2.33 | 2.44 | 73.0 |
| BGTSR(X)-10 | 10 | 9.69 | 2520 | 12×3×70/0.07 | 4.8 | 1.83 | 1.91 | 90.5 |
| BGTSR(X)-12 | 12 | 11.90 | 3096 | 12×3×86/0.07 | 5.4 | 1.50 | 1.60 | 112.2 |
| BGTSR(X)-16 | 16 | 15.34 | 3990 | 19×3×70/0.07 | 6.2 | 1.16 | 1.21 | 150.5 |
Round Type: Single Wire Diameter: 0.05mm (AWG 44)
| Part No. | Nominal Cross Section (mm²) | Calculating Cross Section (mm²) | Structure | Calculating Outside Diameter (mm) | Max. DC Resistance at 20℃ (Ω/km) | Calculating Weight (kg/km) | ||
| Total Wire Number | Strands×Wire Number Per Strand / Single Wire Diameter (mm) | BGTSR | BGTSRX | |||||
| BGTSR(X)-1 | 1 | 0.99 | 504 | 7×3×24/0.05 | 1.4 | 18.5 | 19.3 | 9.3 |
| BGTSR(X)-1.3 | 1.3 | 1.32 | 672 | 7×3×32/0.05 | 1.7 | 14.2 | 14.8 | 12.5 |
| BGTSR(X)-1.5 | 1.5 | 1.48 | 756 | 7×3×36/0.05 | 1.8 | 11.9 | 12.7 | 14.0 |
| BGTSR(X)-1.8 | 1.8 | 1.81 | 924 | 7×3×44/0.05 | 2.0 | 10.2 | 10.7 | 17.5 |
| BGTSR(X)-2 | 2 | 1.98 | 1008 | 7×3×48/0.05 | 2.2 | 9.16 | 9.65 | 19.0 |
| BGTSR(X)-2.5 | 2.5 | 2.30 | 1176 | 7×3×56/0.05 | 2.3 | 7.39 | 7.72 | 22.5 |
| BGTSR(X)-3 | 3 | 2.95 | 1505 | 7×5×43/0.05 | 2.6 | 6.16 | 6.43 | 29.0 |
| BGTSR(X)-4 | 4 | 3.95 | 2016 | 12×3×56/0.05 | 2.7 | 4.59 | 4.83 | 39.0 |
| BGTSR(X)-5 | 5 | 4.94 | 2520 | 15×3×56/0.05 | 3.2 | 3.71 | 3.86 | 48.5 |
| BGTSR(X)-6 | 6 | 6.26 | 3192 | 19×3×56/0.05 | 3.6 | 2.93 | 3.21 | 60.0 |
| BGTSR(X)-8 | 8 | 8.05 | 4104 | 19×3×72/0.05 | 4.2 | 2.33 | 2.44 | 78.5 |
| BGTSR(X)-10 | 10 | 10.00 | 5096 | 7×7×104/0.05 | 4.8 | 1.83 | 1.91 | 97.0 |
| 10.07 | 5130 | 19×3×90/0.05 | 4.8 | 1.83 | 1.91 | 97.8 | ||
| BGTSR(X)-12 | 12 | 12.08 | 6156 | 19×3×108/0.05 | 5.4 | 1.50 | 1.60 | 117.0 |
Product Advantages
Micro-stranded construction (single wire down to 0.05mm) ensures a small bending radius and high resistance to repeated flexing, suitable for high-dynamic applications.
Made of high-purity Cu-ETP copper (≥99.95%), low DC resistance, reduced power loss, especially effective for high-frequency current transmission.
Available bare or tin-plated. Tin plating provides effective oxidation and corrosion resistance, and improves soldering reliability.
Strictly manufactured according to GB/T12970.4-2009, ensuring consistency and traceability.
Structure, cross-section, and packing can be adjusted upon request; non-standard solutions are available.
Operating Conditions
Temperature range:
–40°C to +200°C (tin-plated)
Environment:
Dry or moderate humidity. Avoid prolonged contact with acids, alkalis, or corrosive gases. Tin-plated version can be used in mildly corrosive environments.
Current rating:
Refer to the max. DC resistance values in the specification table and select the appropriate cross-section based on actual heat dissipation of the equipment.
Maintenance and Care
Periodically inspect the conductor surface for oxidation, blackening, or mechanical damage, especially when used in high-humidity or chemical atmospheres.
During installation, avoid excessive tension or kinking; keep the minimum bending radius no less than 5 times the outer diameter of the wire.
For tin-plated products stored long-term, use sealed packaging and store in a dry, clean environment to prevent discoloration of the tin layer.
In high-frequency equipment, ensure that terminal crimping or soldering is secure to avoid local overheating due to high contact resistance.
After-Sales Service
Factory inspection reports and material certificates are provided, traceable to raw material batches.
Technical team available to assist with selection, structural optimisation, and failure analysis.
Small batch sample orders supported; lead time for bulk orders is usually 15–25 working days (expediting possible upon request).
Customization Upon Request
Zhejiang Bridgold Copper Tech Co., Ltd. is a professional leader China copper braid flat, copper braid wire, copper braid wire flat, copper braided wire, copper earth braid manufacturers and suppliers with high quality and low price. Welcome to contact us.
Frequently Asked Questions (FAQ)
Our braided wires are manufactured using high-purity annealed Cu-ETP (C11000) copper wires with a copper content of ≥ 99.95%, ensuring exceptional electrical conductivity and minimal signal/power loss.
Micro-stranded wire configurations offer ultra-high flexibility and smaller bending radii, preventing wire fatigue and breakage during high-dynamic movement or repeated flexing applications.
Bare copper offers maximum conductivity for standard environments, while tin-plated copper adds high resistance against oxidation and corrosion, improves solderability, and operates safely in temperatures up to +200°C.
Yes, we provide full customization services for stranding structures, nominal cross-sections, single wire diameters, outside diameters, and tailored packaging modes (rolls, spools, or wooden drums).
All products strictly adhere to the GB/T12970.4-2009 standard. Complete factory inspection reports and raw material traceability certificates are provided with every delivery.
We fully support small-batch sample orders for testing and verification. Bulk order lead times generally range between 15 and 25 working days, with expedited manufacturing available on request.