CONDUCTOR MATERIAL
Gold-Plated Copper
Specifications
| Short name | Au/Cu |
|---|---|
| Family | Alloy |
| Purity | 4N copper + 24K gold plating (0.5–3 μm) |
| Manufacturing process | Electroplate after copper draw |
| Conductivity | 98 % IACS |
| Resistivity | 1.76e-8 Ω·m |
| Tensile strength | 220 MPa |
Overview
Copper conductor plated with gold. Used where corrosion resistance dominates (humid environments, marine, military) rather than for raw conductivity — gold conducts worse than copper. Common on connector contact surfaces rather than full conductor runs.
Typical uses
- contact plating
- high-corrosion environments
- military-spec cables