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Thread: looking for 6061T6 2"-1/2 OD 0.083" wall tube

  1. #1

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    Nov 2017
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    27

    looking for 6061T6 2"-1/2 OD 0.083" wall tube

    I'm looking for 6061T6 2"-1/2 OD 0.083" wall tube and can't find it. (0.065" or 0.125" wall
    only). I looked at aircraftspruce, wicks and onlinemetals. Have you some addresses ?

    Thanks in advance for help.

  2. #2

    Join Date
    Oct 2011
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    WA
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    1,181
    I don't know. But might try looking for aluminum pipe instead of tube.
    Usually two thickness. Schedule 20 or 40 (or 80?)
    Pipe is sold by inner diameter, more or less...
    So 2" is 2.38" outside. https://www.onlinemetals.com/en/buy/aluminum-pipe
    Last edited by Bill Berson; 03-23-2021 at 08:44 PM.

  3. #3

    Join Date
    Dec 2016
    Location
    Zionsville, Indiana
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    40
    Try AED Motorsports, https://www.aedmotorsport.com/.

  4. #4

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    Nov 2017
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    27
    I found https://www.tubeservice.com/ (from a thread on homebuiltairplanes.com)
    This reference is on their catalog.

    If you have another one, I appreciate your sharing it if you want.

    Thanks for your answers.
    Last edited by JLS; 03-30-2021 at 09:44 AM.

  5. #5

  6. #6

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    Nov 2017
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    Thanks for sharing but this tube is for wing spars, 0.083" wall is for strength, (0.035" and 0.065" wall is too thin, 0.125" is
    too heavy).2"-1/2 OD is for leading edge radius.

  7. #7

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    WA
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    The Avid is 2.5" x.065", I think.
    Depending on your design, then another sleeve doubler at strut might work. Say 3 feet long slitted to clamp tight and rivet.

  8. #8

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    Nov 2017
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    I'm interested in as strength as possible so 0.083" with wood doubler is my choice.
    Last edited by JLS; 04-03-2021 at 06:58 AM.

  9. #9

    Angry

    I'm just catching up. I had learned 6061 is for marine use like Grumman canoes and boats, 7075 is for 707's and DC-8's and the new stuff is 7475 before GLARE. I had an ALCOA catalog in 1981 but that was just to examine catalog numbers that were neither sequential nor mathematical. "Neither a plumber nor an electrician be" in making exhaust pipes (pipe bender or conduit bender) and carefully choose the shoes and mandrels for the hydraulic tube bender to maintain constant section. Bear with my lack of agility. I think of strength for close-in missiles as 4130. How many g's? I lost you at 2. Then I found the BELL Cobra was limited to 120 degrees of roll angle. Pshew! I was way past comfort at 45 degrees.
    Last edited by 2ndsegment; 04-04-2021 at 05:26 AM.

  10. #10

    Join Date
    Nov 2017
    Posts
    27
    Here are some notes and calculus.
    These are SVG files, I advise you that to download them you should open them with a recent
    navigator (Chrome, Firefox, MS Edge). There is no danger of computer viruses.

    spruce sleeve inertia
    https://drive.google.com/file/d/18oO...ew?usp=sharing
    (not OK in google drive preview, download to view)

    Inertia of disc sector (rounded sleeve with tube fitting)
    https://docs.google.com/spreadsheets...it?usp=sharing
    GoogleSheet discrete sum

    3 view
    https://drive.google.com/file/d/1ZLz...ew?usp=sharing
    (OK in google drive preview)

    bending calculus of 2.5" 0.083" spar with wooden sleeve
    https://drive.google.com/file/d/1FcP...ew?usp=sharing
    (download to better view)
    Last edited by JLS; 04-22-2021 at 01:05 PM.

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