Copper Clad Aluminum Wire (CCA)
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Ranging from 0.08mm to 6mm
Aluminum conductor with a thin copper coating
We manufacture two types of copper-clad aluminum (CCA) wire: clad type and electroplated type, each designed to meet different application needs. CCA single wires are available in diameters ranging from 0.08mm to 6mm and can undergo further processing such as annealing, stranding, and plating to achieve specific technical requirements.
- Clad Type: This wire is produced using a cladding and welding process, where a copper layer is concentrically bonded to an aluminum or aluminum alloy core. The result is a metallurgical bond between the two metals, ensuring they function as a single, inseparable material. Thanks to this structure, clad CCA wire can be processed like a solid metal conductor, undergoing drawing and annealing while maintaining a stable copper-to-aluminum ratio throughout the process.
- Electroplated Type: For this type of wire, a controlled layer of copper is applied to an aluminum core through electroplating. This type is commonly used in coaxial cable conductors and electrical wiring, where weight reduction and controlled conductivity are priorities.
Specifications
| Wire Type | Copper Content (%) | Copper Mass Ratio (%) | Length Ratio | Density (g/cm³) | Max. DC Resistance at 20℃ (Ω.mm²/m) | Min. Electrical Conductivity (% IACS) |
| Copper Clad Aluminum (10% Copper) | 8-12 | 27 | 2.65:1 | 3.32 | 0.02743 | 63 |
| Copper Clad Aluminum (15% Copper) | 13-17 | 37 | 2.45:1 | 3.63 | 0.02676 | 65 |
| Copper | 100 | 100 | 1:1 | 8.89 | 017241 | 100 |
Physical & Chemical Properties
| Clad Type | State | |||||
| 10H | 10A | 15H | 15A | Hard (Non-Annealed) | Soft (Annealed) | |
| Wire Size (mm) | 0.12-8.00 | 0.12-8.00 | 0.12-8.00 | 0.12-8.00 | 0.12-8.00 | 0.12-8.00 |
| Copper Content (%) | 25-31 | 25-31 | 32-40 | 32-40 | 10 | |
| Max. Resistance at 20℃ (Ω.mm²/m) | 0.02743 | 0.02743 | 0.02676 | 0.02676 | 0.02743 | |
| Density (g/cm³) | 3.32 | 3.32 | 3.63 | 3.63 | 2.85 | |
| Min. Electrical Conductivity at 20℃ (%) | 62 | 62 | 64 | 64 | 60 | |
| Elongation (%) | 1-3 | 8-25 | 1-3 | 8-25 | 19-3 | 8-25 |
| Tensile Strength (Mpa) | ≥250 | ≥110 | ≥250 | ≥110 | ≥250 | ≥110 |
Stranded CCA Wire
| Cross Section | Structure (strands/mm) | Max. Resistance (Ω/km) | Tensile Strength (Mpa) | Elongation (%) |
| 0.60/0.50 | 19/0.20 | 42.20 | 100-150 | 1-25 |
| 0.75 | 19/0.23 | 34.18 | ||
| 1.00 | 19/0.26 | 26.75 | ||
| 1.5 | 19/0.32 | 17.65 | ||
| 2.00 | 19/0.36 | 13.95 | ||
| 2.50 | 19/0.41 | 10.32 | ||
| 3.00 | 19/0.47 | 8.32 | ||
| 4.00 | 19/0.53 | 6.48 | ||
| 5.00 | 19/0.59 | 5.23 | ||
| 8.00 | 19/0.73 | 3.42 | ||
| 10.00 | 19/0.82 | 2.7 | ||
| 15.00 | 19/1.01 | 1.75 | ||
| 20-400 | Customizable | |||
Typical Applications
Copper-clad aluminum (CCA) wires are widely used in various industries due to its lightweight properties and balanced electrical performance. Their applications can be categorized into three main areas:
- High-frequency signal transmission:
-Standard conductor material for coaxial cables in cable TV systems
-50-ohm RF antennas for telecommunications
-Leaky cables for controlled signal distribution
-Flexible RF coaxial cables used in wireless communication
-Data transmission cables for networking and telecommunications - Power transmission applications:
-Stranded conductors
-Power cables
-Control cables
-Automotive wiring
-Building distribution lines
-Busbars
-RF shielding - Specialized electromagnetic wire applications:
-Motor and fan coils
-Speaker and voice coils
-Winding applications
Features
- Reduces material costs compared to pure copper conductors.
- Offers higher conductivity than standard aluminum wire.
- Supports faster signal transmission in electrical and RF applications.
- Lightweight design simplifies transportation and lowers installation costs.
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