Aluminum conductor magnet wire can reduce weight and material cost, but designers must account for lower conductivity, larger conductor size and connection reliability.
Enameled Copper Wire vs Enameled Aluminum Wire
Compare enameled copper wire and enameled aluminum wire by conductivity, weight, cost, winding size, mechanical behavior, termination and application suitability.

Aluminum alloy
An Aluminium alloy (or aluminum alloy; see spelling differences) is an alloy in which aluminium (Al) is the predominant metal. The typical alloying elements are copper, magnesium, manganese, silicon, tin and zinc. There are two principal classifications, namely casting alloys…

Enameled Aluminum Wire
Enameled aluminum wire is a lightweight magnet wire option used in selected motors, transformers and coils where weight, cost and design space are important.