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Soft Soldering S/steel to S/steel

PostPosted: Sun Jun 21, 2015 12:15 am
by Rumking
I've been reading the soft soldering threads on here i see Mac and many others seems to have much success doing copper to s/steel.
My question is what about s/steel to s/steel. I got a piece of 2 inch S/Steel pipe and am trying to join a stainless funnel, using it as a (reducer) to it.
I was looking at the cheap propane tourches at burnings Mac and others have recommended and found some Ezi-weld 801 at Bunnings today aswell. will this with the correct solder be able to join stainless to stainless?
The 2 parts I need to join sleeve nicely over each other so the join really is just to make it air tight.

Am I on the right track?

Any advice or tips we'll be appreciated

Re: Soft Soldering S/steel to S/steel

PostPosted: Sun Jun 21, 2015 6:03 am
by hillzabilly
I would get it TIG welded ,if ya in the Perth area I can organize someone to do it ,brazeing would be my next choice,soft solder my last as I have never been able to get a good join with it with stainless to stainless.cheers hillzabilly ;-)

Re: Soft Soldering S/steel to S/steel

PostPosted: Sun Jun 21, 2015 10:05 am
by punchy21
Not sure on how strong these are but it can be done, check this out, very informative :handgestures-thumbupleft:




Re: Soft Soldering S/steel to S/steel

PostPosted: Sun Jun 21, 2015 3:23 pm
by Rumking
Thanks guys
hillzabilly I'm down in secret harbour down Mandurah way.
It's just a small quick job that's why I was hopping soft soldering could do the trick. It doesn't have to hold the weight or pressure of anything. It's just jointing a ss funel to the end of ss 2inch tube. It's already a snug fit but it's not water tight.

If I was going down the tig path I have some farells I'd like to join to 2inch tubbing too

Cheers

Re: Soft Soldering S/steel to S/steel

PostPosted: Sun Jun 21, 2015 7:24 pm
by toil
I have soft soldered stainless fittings to kegs using Comwell 965 flux and aquasafe solder (tin/copper - no silver). The fittings end up very solidly attached - pulled them it as hard as I could and they didn't budge. If as you suggest the two pieces fit together snugly and you have some surface area to work with, soft solder would be fine. I used a propane torch from bunnings and it was pretty easy.