On Tue, 07 Oct 2008 07:40:46 GMT, John Doe
wrote:

"Stupendous Man" wrote:
John Doe wrote:

Is there any difference between 6061 aluminum and aircraft grade
aluminum for that purpose?

Is "aircraft grade" something like "industrial strength" or "heavy
duty"?

The three word term "aircraft grade aluminum" in quotes produces
almost one million results on the Yahoo search engine. The term is
commonly used (and defined) at McMaster, a huge metal parts supply
merchant on the web at (http://www.mcmaster.com/) and physically
located in the United States.


The problem is, there are several different "aircraft grade" aluminums
- of which 6061 T6 is one. All Zenith aircraft are built almost
exclusively of 6061 T6

6061 T6 is les likely to crack when bending than a 7000 series in T6.
T6 is a hardness spec (solution heat treated and aged IIRC) and is
harder than T3 or T0 (normalized)
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