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Old 11-13-10, 01:17 PM
  #4  
NoReg
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What is the question? Structural, working properties? All I really know about it is that they make ultralight aircraft out of the stuff, not just the ribs, but main structural spars. Based on this, and the fact it can be welded in these sizes I made the suggestion it was sorta stupid not to use it on frames which is what got me banned from Frameforums, back when you could be banned from them. At some level anything you can do with 6/4 you should be able to do with this stuff. I like to collect dimensions, and I was interested to note Rob English uses .028 in his 3/8" seat stays. I figured it could be .035 or larger, the Bontrager sizing is .058. and .035 in 5/8", stepped o 1/2" as far as I recall, so his scantling seems very small. I can do what I like though since I don't sell anything.

(.028 is a higher ratio of wall thickness on a 3/8" tube, which is a point worth noting in some application)
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