Which material has higher conductivity for conductors used in aircraft?

Copper is the material recognized for having the highest electrical conductivity among the common metals used as conductors in aircraft applications. This characteristic makes copper a preferred choice in the aerospace industry, where efficient electrical systems are critical for performance and safety. Not only does copper provide excellent conductivity, but it also has favorable mechanical properties that contribute to its durability and reliability in demanding environments.

While aluminum is also used in aircraft wiring due to its lightweight properties and cost efficiency, it does not conduct electricity as well as copper. Silver, which possesses even higher conductivity than copper, is not widely used in aircraft due to its cost and susceptibility to tarnishing, which can lead to reduced effectiveness over time. Tin is typically used for coating other metals, including copper, to enhance corrosion resistance rather than as a primary conductor.