1. Excellent thermal and electrical conductivity
2. Good thermal stability and heating impact resistance such as low linear expansion coefficient
3. Chemical corrosion resistance and most metals are not easy to react
4. At high temperature (above 800°C in most copper-based carcass), the strength increases with the increase of temperature
5. It has good lubrication and anti-wear
6. Easy to process, good machinability, can be made into molds with complex shapes and high precision