Why 2024?

My plans call for the use of 2024 1.5mm to use in the forming of
brackets
that will hold the bellcranks. Each part is doubled, (left and right
bracket
top and bottom parts on the bellcranks), so it seems to be extremly
strong.
Now, don't get me wrong, I can make a call today and order the
material that
it calls for, but at the moment I have quite a bit of the 6061 t-6
aluminum just
sitting here. So can anyone give me good reasons why I shouldn't use
this in
place of the 2024? Although I've read the materials data sheets on the
strengths
of each, It does seem to click for me of what the reason is for the
2024.
Any help?
Lou