Copper-Clad Aluminum vs Aluminum-Clad Copper: Similar Names, Different Applications
Although they sound alike, copper-clad aluminum (CCA) and aluminum-clad copper (ACC) are two very different materials with distinct structures and applications. Choosing the right one depends on your specific electrical and mechanical needs.
Basic Structures
- CCA (Copper-Clad Aluminum): A core of aluminum with a thin outer layer of copper. The main benefit is reduced cost and weight while maintaining decent conductivity.
- ACC (Aluminum-Clad Copper): A core of copper covered with aluminum. This material is rare and typically used where bonding to aluminum conductors is essential.
Comparison Table
| Property | CCA (Copper-Clad Aluminum) | ACC (Aluminum-Clad Copper) |
|---|---|---|
| Core Material | Aluminum | Copper |
| Outer Layer | Copper | Aluminum |
| Weight | Light | Heavy |
| Conductivity | 60–65% of copper | Closer to copper |
| Applications | Speaker wires, coaxial cables, LAN cables | Specialty bonding or transition connections |
| Cost | Lower | Higher |
| Market Availability | Wide | Limited |
Applications
CCA wire is widely used in the telecom and audio industry where cost-efficiency and weight reduction are critical. Despite lower conductivity, it performs adequately in short-distance wiring.
ACC strip, on the other hand, is used in special electrical joints where copper and aluminum need to be joined without galvanic corrosion. It’s also applied in custom components for aerospace and defense sectors.
Why the Confusion?
The terms sound nearly identical, yet they serve opposite structural roles. It’s important to clearly specify the required type in procurement and technical drawings to avoid serious compatibility or safety issues.
Our Supply Options
We provide premium-grade copper-clad aluminum (CCA) strip and wire for electrical applications. All materials meet IEC and ASTM standards and are available in customizable widths and thicknesses.
Need help selecting the right conductor strip? Contact us today for expert advice, samples, and competitive pricing.
