Pure aluminum has the highest thermal conductivity among all aluminum materials, and is the best choice for making high performance heat sinks.
| 1070 | >235 W/m-K | for cold forging |
| 6063-T5 | 209 W/m-K | for extrusion |
| 6061-T6 | 167 W/m-K | for machining |
| A380.0 | 109 W/m-K | for die casting |
In addition to high thermal conductivity, pure aluminum also has the following advantages:
- Very good machinability
- Suitable for anodizing
- Excellent resistance to atmospheric attack