Home Brew Forums > Home Brewing Beer > DIY Projects > Brew Stands > HERMS coil: What wall thickness for stainless tubing? 0.035" ok?
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Old 02-14-2009, 01:47 AM   #1
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Default HERMS coil: What wall thickness for stainless tubing? 0.035" ok?

Looking at buying 50' of this for my stainless HERMS coil.

Would this work?:

304 Stainless Steel Coil Tube .1/2" OD x 50' (.035" W)

http://cgi.ebay.com/ws/eBayISAPI.dll...m=230325461979

It comes in a 32"x32"x5" box so I'd have to recoil it to fit in the HLT.

For those of you that have stainless HERMS coils: Is 0.035" a good wall thickness to use? Will I be able to recoil it around a corney or something similar?

Is the fact that it's "welded tube" an issue? I'm assuming not and that it means that a welded seam is visible on the inside. (Like a lot of my other stainless parts [nipples, elbows, etc.] I've ordered so far)

Kal



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Old 02-14-2009, 02:22 AM   #2
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That item doesn't come up on ebay anymore...


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Old 02-14-2009, 03:33 AM   #3
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I hope you got it Kal and that is why its gone...

You will be able to recoil it, but it is difficult and does not hold its form like copper. You will not be able to wrap it around a corny without heat and some better tools than I have. I was able to make my coil small enough to fit in a keggle by forcing it around my 6 gallon pot that has a 12 inch diamter.

Good luck
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Old 02-14-2009, 02:12 PM   #4
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Strange that the link doesn't work. Here it is again:

304 Stainless Steel Coil Tube .1/2" OD x 50' (.035" W) - eBay (item 230325461979 end time Mar-15-09 08:57:48 PDT)

It's a power seller with unlimited stock. $85 for 50'. (I wouldn't have listed it here if it was a one-off)

Been watching ebay for a few months now for 50 foot stainless coil with 1/2" OD and there's never been any 'deals'. This is still cheaper than buying a premade 50' stainless IC ($99 from MidwestSupplies) and cutting off the ends.

Justin: Corney's too small - you're right. It's for the HERMS coil in my 20 gal Blichmann HLT so I'll probably coil it in a 12-14" diameter. You mentioned not having problems coiling the 50' of 1/2" OD stainless that you bought. Was it also 0.035" wall thickness?

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Old 02-16-2009, 03:17 PM   #5
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Well I've gone ahead and ordered the 50' of stainless tubing. Hopefully it'll be ok. I'll post back once I get it.

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Old 02-16-2009, 03:44 PM   #6
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I don't know the wall thickness of my coil...sorry

For future reference McMaster-Carr Part Number: 8989K98 $70.33 USD... sorry. I didn't know how much the Ebay one was for because I couldn't see it. Maybe yours is 316 and more awesomer!!
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Old 02-16-2009, 03:49 PM   #7
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Nope, it's 304 coil.

Strange that the ebay links aren't working. It's item #230325461979 (you can search on that).

$70 from McMaster? CRAP! I paid $85 though my wall is 0.035" thick instead of 0.02" like the McMaster stuff. Thinner wall would be easier to bend though. Oh well.

Could have bought 316 from McMaster for $78. Blah.

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Old 02-16-2009, 03:55 PM   #8
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Sorry

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