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small OD copper tubing

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  • small OD copper tubing

    Is there copper tubing with OD of ~ 4mm? What is the smallest OD copper tubing available and where can i find some? Im planning on building some heat sinks.

  • #2
    Refrigeration capillary tubing comes in that and smaller diameters. I've used stuff less than 2.5mm in diameter.

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    • #3
      Most hardware and hobby stores carry the K&S Engineering display. They generally have copper tubing down to 1/16th od by 32nds. 5/32" is .15625 (3.96875 mm).

      Stuart

      Edit: the wall thickness on that tubing is .014" BTW
      Stuart de Haro

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      • #4
        www.smallparts.com has small-diameter tubing.
        ----------
        Try to make a living, not a killing. -- Utah Phillips
        Don't believe everything you know. -- Bumper sticker
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        • #5
          copper brake pipe from an auto factors? I think 3/16th is the smallest 'normal' size tho
          Dave
          Just south of Sudspumpwater UK

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          • #6
            i wonder if home depot has some. what would they call it? im sure the guys working there wont have any idea what im talking about if i ask them for small OD copper tubing..

            thanks in advance

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            • #7
              Hobby shops
              They carry 1/16 copper tube.
              You can also get 1/32 SS tube from Walthers Hobby in Milwaukee
              Rich
              Green Bay, WI

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              • #8
                im looking at multi-hole EDM tubing, has anyone has any experience with this, how expensive is it? (trying to maximize surface area - can either have lots of small tubes or can have bigger tubes that are sub-divided inside)

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                • #9
                  Might look at the therm-o-couple used on gas hot water heaters.it would be close to 4mm
                  Mansfield, Ohio

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                  • #10
                    coppertube starting at .010

                    EDM supplies has copper tubing starting at .01 x12 inches long and they have it in .001 steps up to .25
                    800 676-7336
                    Jim

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                    • #11
                      thanks everyone! ill try to get some this comming week

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