the normal alloys used in the states are 6061-t6 or 6061-t832(i think that
is the right heat treatment number for the other one... t6 is more common i
believe). and don't weld, use swaged or telescoping joints, welding
destroys the heat treatment effects and allows for dissassembly when needed.
use decent all stainless steel hardware and liberal applications of
anti-oxidant compounds on all joints.

"Lex-Lutor" wrote in message
...
What will be the best material for log-periodic antenna design, my idea is
to build LP-ant. for 14-30 MHz but it must stay alive at wind over 120
mPh.
Wellding and machine work is not problem bigest problem is to select good
Aluminium?

Maybe AA6082 or AA6061 something elese ?

Thanks for any help or info ?