[GGaskill]

You won't need to heat treat. The annealed state is strong enough and it is more malleable (less brittle) that way.

 

[GGaskill]

Since we are starting to get more technical in our discussion of materials, I thought I would add a link to a discussion of metal fatigue (the real thing, not the computer game of the same name.) It has some math in it but the math can be ignored without loss of benefit.