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Does aluminum alloy conduct electricity?

January 24, 2024

Aluminum alloys have some electrical conductivity but are slightly less conductive than pure aluminum or other highly conductive metals such as copper and silver. The electrical conductivity of aluminum alloy is mainly affected by other elements added to the alloy, as well as the microstructure and heat treatment state of the alloy and other factors.

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In aluminum alloys, adding some alloying elements (such as copper, magnesium, zinc, etc.) can increase its strength and hardness, but may reduce its electrical conductivity. Therefore, in some applications that require high conductivity, such as wires of electronic devices, battery conductors, etc., pure aluminum or high-conductivity metals are usually selected.


However, aluminum alloys are still widely used in many electronic devices, such as mobile phones, laptops, tablets, etc. In these applications, aluminum alloys are mainly used to make housings and structural components, rather than to conduct electrical current directly. In addition, aluminum alloy has good thermal conductivity and can be used in electronic devices that require effective heat dissipation, such as radiators and heat dissipation modules.


To sum up, although the conductivity of aluminum alloy is relatively poor, its application in electronic equipment is still based on its excellent strength, lightweight and heat dissipation performance.