Re: what grade aluminum

[Gbouff1@aol.com]

Thanks for the info.  FWIW I found an article from the 50s that waa  on 
someone's site which gave the Britsh Grade# (BS 1470 NS3).   The equivalent 
international grade is 3103.  I haven't tried to source this  yet, it may not 
be 
available in the US.  If its not avaiable, I'll  probably end up with 6061 
which 
is very common.
 
Thanks,
 
Gary Bouffard