You might consider using Copperweld wire. That way you have both the
strength and the freedom from rust. It's not mild, however -- it's hard
and springy, so it would be harder to work with.

Roy Lewallen, W7EL

Ralph Mowery wrote:

I built a 2 meter 6 element beam out of some single strand guy wire. It
worked fine for a year or so that I had it up. There is no electrical
problem with steel but mechanical it may be something else. Rust being one
of them, the small size of the elements at 100 mhz may not be able to stand
up under wind.