Annealing is a process of heating a metal so as to make it softer. The effect is particularly strong for copper, so annealed copper is much, much, much softer than unannealed copper.

Bending annealed copper wire causes it to work harden, which reverses the annealing. So, annealed copper is soft. This is sort of magical and is the main reason that copper wire is often superior to aluminum wire.

The annealing copper wires is mainly used in the following applications :

1 Braided copper wires

2 Copper conductors (Annealed)

3 Copper cables

4 Transformers windings(paper coated)

5 Used for Jointing tin Boxes

and in other various applications .