What wire

[Lukebgb]

I'm wondering if there's any specific type of wire I should get for hardening? I would assume it doesn't matter as long as the wire doesn't melt before it is at temp. 

[Waggy]

Wire for what? if it's steel then only certain types of steel can be hardened ie high carbon steels:

"Mild steel doesn't harden very well. It doesn't have enough carbon. Get something like O1, silver steel or if you want to go full watchmaker, then Sandvik 20AP". Source

[Lukebgb]

The wire you wrap around a piece of blue pivot steel or what ever high carbon steel to heat it up for hardening? 

[oldhippy]

I had a box of extremely thin brass wire which I used to hang clock parts by when using lacquer. That will be ok for what you want just google very fine brass wire.