On 4/8/2013 4:06 PM, Ed Huntress wrote:

Snipped - just to show it's technically possible...

Something is strange there. I'd have to dig out my ASM book to check,
but 7075 has low corrosion resistance overall and is not recommended
at all for marine environments (or salty sweat, one would assume).
6061 is somewhere in the middle.


I wondered about that too.

What's the story here?