Why are certain metals like copper and aluminium used for making electrical wires, while iron is not?

Copper and aluminium are excellent conductors of electricity, second only to silver, and they are also ductile, allowing them to be drawn into thin wires. They are relatively inexpensive compared to silver and offer a good balance of conductivity, ductility, and cost-effectiveness. Iron, while a metal, is not as good a conductor as copper or aluminium, and it is also more prone to rusting and is less ductile, making it unsuitable for drawing into efficient and durable electrical wires.