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Old 08-19-2010, 07:20 PM   #1 (permalink)
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Bending Copper

Can you Bend ACR copper (with a tubing bender) without splitting it? 1- 1/8 and 1-5/8.

Thanks
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Old 08-19-2010, 08:05 PM   #2 (permalink)
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don't know what acr is, but it is either type m or l that is soft and will bend.
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Old 08-19-2010, 08:17 PM   #3 (permalink)
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don't know what acr is, but it is either type m or l that is soft and will bend.
I believe it is Type L HARD (but it can be Type K Hard) But I always heard ti referred to a ACR. (It is Nitrogen filled) It is what is used in refrigeration.
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Old 08-19-2010, 08:30 PM   #4 (permalink)
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You may be able to anneal it so it will bend, what that will do to it strength wise I have no idea. I've tried bending hard copper with some of my benders, a bender that works great on soft copper is not happy with hard at all, all I seemed to get were kinks.
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Old 08-20-2010, 05:34 PM   #5 (permalink)
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i use copper tube at work thats for refrigeration all the time and it is soft and bend real easy
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Old 08-20-2010, 07:45 PM   #6 (permalink)
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i use copper tube at work thats for refrigeration all the time and it is soft and bend real easy
You use soft copper (That comes in rolls and looks like shit) When you are doing grocery stores, remote condensers, industrial AC, etc. you should use 20' sticks of ACR (It comes plugged and charged with nitrogen so the inside is pristine) and You can lay it out and make it look GOOD.

My experience has been if you try to bend it, it creases (but I never tried it in a real bender). My question is one of you guys with nice benders have tried it and what results they get.
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Old 08-20-2010, 07:50 PM   #7 (permalink)
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Old 08-21-2010, 01:34 PM   #8 (permalink)
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if you are refering to hard drawn ACR, you can bend it by heating the area you want to bend till it is cherry red that will anneal it and make it fairly easy to bend.
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