The conductive properties of pure metal materials are ranked. Among them, the material with the best conductivity is silver (Ag), followed by copper (Cu), after copper, it is gold (Au), and then aluminum (Al). Analyzed from the application level, silver and gold are precious metals and cannot be used in large quantities when the unit price is too high. Copper is the best choice for moderate price and good performance, and it is the main force used in the current industry. It is widely used in electrical related industries, such as enameled coils used in motors, whose internal conductors are made of copper. Although aluminum is the cheapest material among them, the difference in its electrical conductivity is an unacceptable conductor material in applications where high efficiency is the premise.
