Soldering Stainless steel - Page 61 - Home Brew Forums
Register Now For Free!

Home Brew Forums > Home Brewing Beer > DIY Projects > Soldering Stainless steel

Reply
 
Thread Tools
Old 09-15-2011, 04:40 PM   #601
Bobby_M
Vendor and Brewer
HBT_SPONSOR.png
 
Bobby_M's Avatar
Recipes 
 
Aug 2006
Whitehouse Station, NJ
Posts: 23,339
Liked 1767 Times on 1124 Posts


The only thing I wonder is whether it's better to solder the locknut to the interior wall so that when you tighten the element in, it's pulling the solder joint tighter. In other words, the whole assembly isn't hanging off the solder. I thought maybe the curved wall of the vessel would be an issue for sealing but if I try this, I'd use a few small C-clamps to draw the curved walls tight to the flat of the nut. Maybe it won't work.
__________________
Welcome to BrewHardware.com. I love you.
New Stirplates are IN!
Chugger Pumps, Pump Kits, Camlocks, Sightglasses, Clear USA made Silicone Tubing, RIMS, Electric Install Parts, etc.

 
Reply With Quote
Old 09-16-2011, 02:31 PM   #602
lschiavo
HBT_LIFETIMESUPPORTER.png
 
lschiavo's Avatar
Recipes 
 
Sep 2009
Upper Peninsula of..., Michigan
Posts: 4,788
Liked 1113 Times on 755 Posts


Quote:
Originally Posted by Bobby_M View Post
I'd use a few small C-clamps to draw the curved walls tight to the flat of the nut. Maybe it won't work.
I wouldn't solder it while clamped. This would pre-stress the joint and make it more likely to fail IMO.

Fortunatly for me, I have a greenlee hydraulic punch that I was able to flatten and dimple all the locations I soldered. Im sure a tool could be made like the pull through device but to flatten around the hole instead.

 
Reply With Quote
Old 09-18-2011, 02:23 AM   #603
BigJim_inFLA
 
BigJim_inFLA's Avatar
Recipes 
 
Aug 2011
Lakeland, FL
Posts: 110
Liked 10 Times on 7 Posts


Just wanted to say thank you for all the tips and tricks. Just started an electric brew kettle and soldered the 1" nut for the element and the 1/4" half coupling for the sight glass. Worked like a charm!

 
Reply With Quote
Old 09-18-2011, 06:43 AM   #604
StMarcos
Recipes 
 
Apr 2008
Sebastopol, CA
Posts: 978
Liked 35 Times on 28 Posts


I did mention this many pages back, but it is worth saying again. You can use a standard mapp gas bottle with a regular torch (no oxygen), and use the 56% Ag solder to braze brass to stainless or stainless to stainless. I'm talking about sanke keg type thicknesses and regular brass or stainless nipples. It's MUCH easier than messing about with flaring, soft solder, and the liquid flux. Not only that, but the joint will be stronger. The paste flux (such as handy flux) is much easier to deal with than the liquid HCl flux. I'm all for making the most of Home Depot stuff to get by with brewing stuff, but when you have a thread this long, with people trying all sorts of measures JUST to make a nipple securely attached to a keg with soft solder, why not just get a bottle of mapp and some 56% Ag and be done with it? You don't have to learn to TIG or oxyacetylene, and you can still call it diy (no paying welders), and it's just better than using 4% Ag soft solder.

brewman ! Likes This 
Reply With Quote
Old 09-18-2011, 04:10 PM   #605
gmartin
Recipes 
 
Nov 2010
Lansing, Michigan
Posts: 29

`For whatever it's worth, the Harris documentation states that a properly soldered joint will be stronger than a brazed joint, because the higher heat of brazing weakens the metal to be joined. Dunno, but I suppose that they know their products.

 
Reply With Quote
Old 09-19-2011, 03:41 PM   #606
Quaffer
Recipes 
 
Dec 2008
Snohomish, WA
Posts: 418
Liked 30 Times on 15 Posts


Quote:
Originally Posted by StMarcos View Post
I did mention this many pages back, but it is worth saying again. You can use a standard mapp gas bottle with a regular torch (no oxygen), and use the 56% Ag solder to braze brass to stainless or stainless to stainless. I'm talking about sanke keg type thicknesses and regular brass or stainless nipples. It's MUCH easier than messing about with flaring, soft solder, and the liquid flux. Not only that, but the joint will be stronger. The paste flux (such as handy flux) is much easier to deal with than the liquid HCl flux. I'm all for making the most of Home Depot stuff to get by with brewing stuff, but when you have a thread this long, with people trying all sorts of measures JUST to make a nipple securely attached to a keg with soft solder, why not just get a bottle of mapp and some 56% Ag and be done with it? You don't have to learn to TIG or oxyacetylene, and you can still call it diy (no paying welders), and it's just better than using 4% Ag soft solder.
That may be true, but that is what I tried first and I had miserable luck with it. I brazed a 1/2" copper adapter to my Sanke. It worked for two brews, and then it snapped right off. I could see that there had been almost no adhesion to the stainless. I must have used the wrong silver rod (don't know the Ag content) or flux. I tried to repair it but with no better success. The soft-soldered joints on the other hand are holding up just fine so far after many brews.
__________________
Alcohol, the source of - and solution to - all of life’s problems. H.J.S.
My keezer, My E-brewery build thread, How I soldered 1" nut for heater

 
Reply With Quote
Old 09-26-2011, 06:32 PM   #607
loldmopar
Recipes 
 
Aug 2011
Saint Louis, MO
Posts: 13

Quote:
Originally Posted by Brewmoor View Post

This video was one of my inspirations too. It was the reason I decided to braze my fittings instead of paying a welder. Here is another good one.

http://www.youtube.com/watch?v=6dF-l-ebX9o
As I'm researching this to figure it all out, I saw the credits at the end of this video. David Holden is a family friend. Looks like I'm going to his shop in the morning to learn how to braze and maybe braze the couplers into my kegs.

 
Reply With Quote
Old 10-04-2011, 04:16 AM   #608
Dert
Recipes 
 
May 2011
Mpls, Mn
Posts: 96
Liked 15 Times on 10 Posts


This process worked well for me!
Click image for larger version

Name:	image-1593136670.jpg
Views:	1135
Size:	15.9 KB
ID:	35235   Click image for larger version

Name:	image-2322853553.jpg
Views:	1117
Size:	15.3 KB
ID:	35236  

 
Reply With Quote
Old 10-04-2011, 05:04 PM   #609
Flomaster
 
Flomaster's Avatar
Recipes 
 
Nov 2010
Orange, Ca
Posts: 2,149
Liked 38 Times on 35 Posts


Quote:
Originally Posted by Dert
This process worked well for me!
Ahh looks like you soldered on the outside of the keggle instead of the inside.

-= Jason=-

Sent from my HTC Incredible using Home Brew Talk

 
Reply With Quote
Old 10-05-2011, 02:38 AM   #610
Dert
Recipes 
 
May 2011
Mpls, Mn
Posts: 96
Liked 15 Times on 10 Posts


Yes after pulling the tool through. I did a MLT, BK, and HLT 1/2" and 3/4" couplings and 1" locknuts. Total of 12 fittings.

 
Reply With Quote
Reply
Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
Stainless steel question baer19d Kettles, Mash Tuns & Hot Liquor Tanks 22 06-16-2011 05:05 AM
is there any way to tell if something is Stainless Steel Grinder12000 Equipment/Sanitation 25 05-12-2010 01:44 PM
Stainless Steel v. Aluminum DirtyJersey Beginners Beer Brewing Forum 18 03-23-2009 08:37 PM
Stainless Steel Disconnects shif7y Bottling/Kegging 0 05-26-2007 07:05 PM
hardened steel instead of stainless? photogscott Equipment/Sanitation 5 05-09-2007 07:03 AM


Forum Jump