Just started reading up on dealing with cross comb formation.
This is the only scenario where I hope to need to wire; needing to remove comb then reorient it with wire.
If steel wire, what kind of material and what gauge?
Why not fishing line?
I wouldn’t re-orient it with wire. If the wire is not embedded, it can cause all sorts of problems. If you want to remount comb into a frame, most people use rubber bands, and I think @JeffH has used cotton thread held in place with thumb tacks on occasion. It needs to be something that the bees can chew through when they have attached the comb.