"William Wixon" wrote in message
...
| i'd like to get the stuff they use to make aluminum truck cargo bed caps.
| 1" square, radiused corners, thin wall, i assume not extruded, aluminum
| tubing. i've used 6061 T6 tubing before and somehow this stuff doesn't
seem
| like 6061 T6 to me, it seems softer and more weldable. they use this
stuff
| to build aluminum truck caps and it has welded connections. i don't know
| what it's called so i don't know where to look for it and every place i
have
| looked has 6061 T6 non-radiused (square) corner extruded stuff, "aircraft
| grade". the stuff i'm looking for would be, i assume, NOT aircraft grade.
|
| b.w.

Aircraft grade don't mean nothin' but marketing. Aircraft use all
grades/alloys of aluminum, providing the alloy's actually what the markings
say it is.