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Pipe bending 101 - Page 201

post #2001 of 2175
Wonder if they intend to put Brass pushfits out also. thinking.gif

Cause those would look Uber smexy with Copper tubing. Steel pushfits look nice aND I will glom onto some if that's all there is. But Brass would be the way to go for me. smile.gif

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post #2002 of 2175
This post mostly to provide inform someone else using metal tubing for his build, but I will post this here since it might help others in this thread.

The build owner (thread here) bought some lengths of chrome tubing from Home Depot. This got me curious because I want to go back to attempt metal tubing but having it pre-chromed could save me some time.

He won't able to work on them for a few weeks, so I decided to experiment on my own. I recently got two of the cheapest 1/2" chrome-plated copper tubes that are sold at Home Depot, and posting my results from bending them.

The two that I bought are faucet supply lines, from a link in that build log. They're from two different brands, BrassCraft and Homewerks Worldwide. They're both 20" long so it didn't give me a lot of room for many bends, but they were good enough for the experiment.

I used a Ridgid 398 tube bender for 1/2" tube. This could be bought used for under $40. One of the tubes (HomeWerks) was ordered online, it arrived somewhat bent. Though it wouldn't matter much here.



I put the two side by side to compare wall thickness. The BrassCraft tube has the thicker wall (left). HomeWerks, on the other hand, has a more polished finish and plating is a bit brighter in comparison. The BrassCraft tube is somewhat duller and the plating is a bit darker when placed next to the other tube, though it's hardly noticeable otherwise.



I expect the BrassCraft to hold up better for bends. The HomeWerks tube is thinner, walls are just under 1mm thick.

Now for the results from bending. Sorry these pictures didn't come out as sharp.
I cut both tubes into two pieces, then first bent the BrassCraft tube. The bends were mostly smooth though that is partly because I needed to grip the lever better to bend it. But with enough practice bends this tube is very workable. I'm pretty satisfied with the results.




One other thing- the clamping hook that holds the tube was biting a little too close to the tube, and pushed all the way it would make a "bite mark" denting that area next the the tube being bent. I just had to ease off on the hook a bit, and this will vary depending on the bending tool you use.

Bending the HomeWerks tube produced underwhelming results. It took a bit less effort to form the bends, but there is way too much outward flaring on the outside diameter. It is much more susceptible to uneven pressure so there are kinks and wrinkles on the inside of the bend.




So as I expected, the HomeWerks tube did worse due to its thinner wall. For me, this tube failed the test while BrassCraft's tube passed. I was bending both of them on a whim since they won't be used for a water cooling loop, but I should have consistently better results with the BrassCraft tube. I'm going to buy 3-foot lengths when I'm doing this for an actual build- hopefully they are from the same stock as the tubing I used here.
Edited by ccRicers - 9/14/15 at 7:21am
post #2003 of 2175
Good to know. +Rep for the review. OP should add BrassCraft tubing as reliable to first post. thumb.gif

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post #2004 of 2175
Thread Starter 
Thanks for the results,Im glad you took the time to share. thumb.gif
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post #2005 of 2175
I'm on the same path @ccRicers. But like an idiot I picked up some EK fittings in 12mm before I realized that 1/2" pipe would need a 13mm fitting. Can't find 12mm tubing here in the US to save my life, even mcmaster said no.

Has anyone tried these:

http://www.performance-pcs.com/alphacool-ht-13mm-compression-fitting-g1-4-for-plexi-brass-tubes-knurled-chrome.html

for a copper tube build?

or have a source for 12mm plated tubing in the US?

Open to other suggestions....

Thanks in advance!

Quote:
Originally Posted by ccRicers View Post

This post mostly to provide inform someone else using metal tubing for his build, but I will post this here since it might help others in this thread.

The build owner (thread here) bought some lengths of chrome tubing from Home Depot. This got me curious because I want to go back to attempt metal tubing but having it pre-chromed could save me some time.
<>
Bending the HomeWerks tube produced underwhelming results. It took a bit less effort to form the bends, but there is way too much outward flaring on the outside diameter. It is much more susceptible to uneven pressure so there are kinks and wrinkles on the inside of the bend.




So as I expected, the HomeWerks tube did worse due to its thinner wall. For me, this tube failed the test while BrassCraft's tube passed. I was bending both of them on a whim since they won't be used for a water cooling loop, but I should have consistently better results with the BrassCraft tube. I'm going to buy 3-foot lengths when I'm doing this for an actual build- hopefully they are from the same stock as the tubing I used here.

Edited by pgdeaner - 9/21/15 at 11:09am
post #2006 of 2175
I have bought 10 of the Alphacool fittings before but never actually used them in a water cool build XD That was back when I had more problems with bending copper tube so I skipped on the idea and sold them. Alternatively you can order 1/2" fittings from Rocket Science. Guy found the store for the exact reason you have, he wanted 1/2" fittings for metal tubing. They cost a bit extra but looks like they have the same Bitspower build and quality.

With the Alphacool fittings I only did a test fit with some bare soft copper tube of the same diameter. They had a bit of "wiggle" to them when inserted all the way and with collar screwed in and I didn't know how to feel about that. Didn't fill it with water to leak test.

12mm plated tubing is extremely hard to find in the US I think. US residents usually take pride in being able to order just about anything they need for reasonable prices but looks like 12mm chrome plated tube is out for us tongue.gif First PC parts store to sell it in the US might move a lot of that stuff.
post #2007 of 2175
Quote:
Originally Posted by ccRicers View Post

I have bought 10 of the Alphacool fittings before but never actually used them in a water cool build XD That was back when I had more problems with bending copper tube so I skipped on the idea and sold them. Alternatively you can order 1/2" fittings from Rocket Science. Guy found the store for the exact reason you have, he wanted 1/2" fittings for metal tubing. They cost a bit extra but looks like they have the same Bitspower build and quality.

With the Alphacool fittings I only did a test fit with some bare soft copper tube of the same diameter. They had a bit of "wiggle" to them when inserted all the way and with collar screwed in and I didn't know how to feel about that. Didn't fill it with water to leak test.

12mm plated tubing is extremely hard to find in the US I think. US residents usually take pride in being able to order just about anything they need for reasonable prices but looks like 12mm chrome plated tube is out for us tongue.gif First PC parts store to sell it in the US might move a lot of that stuff.

So those koolance cu13's come with 13mm ferrules, a few of us went and bought 1/2" ferrules from home depot that dropped right in.
post #2008 of 2175
Good info! Thanks!
Quote:
Originally Posted by kgtuning View Post

So those koolance cu13's come with 13mm ferrules, a few of us went and bought 1/2" ferrules from home depot that dropped right in.
post #2009 of 2175
Also, I had a similar experience with the HomeWerks tube from home depot. Did not bend well at all. rolleyes.gif
post #2010 of 2175
Quote:
Originally Posted by pgdeaner View Post

Good info! Thanks!

No problem. I believe they are Watts A-202, as soon as I get home I'll verify that.
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