Bending stainless steel tube without expensive tooling.

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Bending stainless steel tube without expensive tooling.

Post by zebedee » Aug 19th, '20, 04:11

Demonstration of custom building a bimini too.

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Re: Bending stainless steel tube without expensive tooling.

Post by Even Keel » Aug 20th, '20, 08:59

Great trick. I might try it for some aluminium fencing. Thanks

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Re: Bending stainless steel tube without expensive tooling.

Post by Furstin » Aug 20th, '20, 09:22

Wonder what the 90deg radius is you can get without flattening the inside.
I suspect routing out the board on bench to tube profile is important.

I had a muffler shop do some mandrel bends for me on tube, but larger diameter than 25mm, but could probably do it.

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Re: Bending stainless steel tube without expensive tooling.

Post by Tezza » Aug 20th, '20, 10:18

Watching home garden show on TV on Sunday and he used below to bend pipe. Interesting he poured sand into pipe and sealed first
D0271DA8-D96C-4D4C-B380-15685CC09A8C.png
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Re: Bending stainless steel tube without expensive tooling.

Post by Furstin » Aug 20th, '20, 10:37

Copper?

I'm not sure a plumbers pipe bender will stand up to stainless, probably pop the casting.



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Re: Bending stainless steel tube without expensive tooling.

Post by Tezza » Aug 20th, '20, 10:47

Furstin wrote:
Aug 20th, '20, 10:37
Copper?

I'm not sure a plumbers pipe bender will stand up to stainless, probably pop the casting.



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Good question . I think it was copper
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Re: Bending stainless steel tube without expensive tooling.

Post by JimJ » Aug 21st, '20, 00:03

probably pop the casting.
or your poofer valve

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Re: Bending stainless steel tube without expensive tooling.

Post by Harb » Aug 26th, '20, 22:22

Too much hard work routing the groove in the wood block, I bought a second hand sparkies steel conduit bender from Greysonline auction for $9 + $3 fees . Sometimes they pop up on Gummies as well.
http://constructionmanuals.tpub.com/142 ... er-244.htm


The small copper benders are good for stainless as well. I used one of these eBay cheapies
pipe.jpeg
pipe.jpeg (10.77 KiB) Viewed 171 times

to put all the bends in the 3/8" Stainless fuel line for the boat, the handle needed some help by pushing the pipe at the same time but considering I had to work on the floor to bend the 8mtrs+ pipe in different directions to follow the contour of the hull and floor it actually worked better then expected.

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Re: Bending stainless steel tube without expensive tooling.

Post by Furstin » Oct 6th, '20, 15:48

Can't see one that will do 7/8" pipe....

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Re: Bending stainless steel tube without expensive tooling.

Post by Harb » Oct 7th, '20, 22:20

Furstin wrote:
Oct 6th, '20, 15:48
Can't see one that will do 7/8" pipe....

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You mean the red bender in the pic ? :lol: I bought it from ebay to do the bends in the 3/8 fuel line.
For 7/8" or 1" I use the bender I got from auction that looks like this
pipeben.jpeg
pipeben.jpeg (4.12 KiB) Viewed 88 times

You get the idea of the size of it and how to use it in the link above the red bender
and for stainless pipe it helps to get a longer extension handle.

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