Copper & Aluminum Properties
| Property |
Copper |
Aluminum |
| Volume Conductivity @ 20°C (IACS) |
100.0% |
61.8% |
| Volume Resistivity @ 20°C (ohm-cir mil per foot) |
10.371 |
16.782 |
| Temperature Coefficient of Resistance @ 20°C |
0.00393 |
0.00410 |
| Coefficient of Linear Expansion (per °C) |
0.000017 |
0.000023 |
| Density @ 20°C (gm/cubic cm) |
8.89 |
2.703 |
Rea COPPER magnet wire is manufactured from electrolytic tough pitch copper that meets ASTM B49-78, B115.83A and Rea's physical and electrical specifications.
Rea ALUMINUM magnet wire is derived from selected rods of high purity, electrical grade 1350 aluminum. The basic properties of this aluminum is covered by specification ASTM B230.