Table 1 Physical properties of aluminium and copper

Density

8.9 g/cm³

2.71 g/cm³

Melting temperature

1083 °C

660 °C

Thermal conductivity

390 W/mK

226 W/mK

Co-efficient of thermal expansion

17/°C.10⁶

24/°C.10⁶

Specific heat capacity

385 kg °C

946 kg °C