something interesting about annealing

[Awrksmokey]

I have this question;

what is the farthest extent possible to anneal a piece of steel? would that change the steel's composition? would it make a see-able (visible would be the word) difference, I am very new here and to blacksmithing. feelable difference?

thanks so much,

awrkiron

[anvil]

Nope, none of the above. It would just look and feel like a piece of iron.

[Awrksmokey]

dang, ok. thanks sir