Metals used in Induction heating
Several metals with different properties are needed in a mold for induction heating purposes.
The following table lists metals that might be used in an induction heating process:
| Metal | Use | Electrical resistivity (Ohm.m) | Rel. magnetic permeability | Thermal conductivity (W/mK) | Density (kg/m3) | Specific heat (J/kgK) |
|---|---|---|---|---|---|---|
| Copper | Induction coil | 1.666 x 10-8 | 1.0 | 400 | 8700 | 385 |
| Tool steel | Mold | 6.99 x 10-7 | 1.0 | 28 | 7750 | 460 |
| Nickel | Magnetic insert | 6.99 x 10-8 | 100 | 91 | 8900 | 460 |