On Sun, 9 Feb 2014 17:32:13 -0800 (PST), "
wrote:

On Sunday, February 9, 2014 7:10:45 PM UTC-5, John B. wrote:


You could have argued that "T-6" was actually a marine alloy as it is,

so often, used to designate the masts and spars of sail boats :-)



Cheers,



John B.

You need to refresh your memory on aluminum alloys. As I remember all the marine alloys are five thousand and something.

Dan

But spars are most often 6061 or 6063. Which just goes to show that
"marine," "aircraft," and "surgical" don't have much meaning when it
comes to materials.

--
Ned Simmons