Tig Brazing Copper To Stainless

I would like to know if it is possible to tig weld copper pipe fittings to 300 series stainless steel.

Tig brazing copper to stainless.

My client is presently silver soldering these butt joints but that is pretty expensive. It is different than steel but it is straightforward enough. Pay attention to those and your project will be fine. This is the copper to stainless butt after welding.

Silicon bronze will join carbon steel copper bronze brass cast iron pretty much any of these to any other. You can t treat copper like steel. But remember its not as strong as a weld. Tig welding copper is not hard but it doesn t get done that often.

If you are tig welding copper buy oxygen free copper. I use the term silver brazing instead of silver solder because technically anything over 840 degress f is brazing. The filler material flows into any and all microscopic crevices in the metal and pulls the pieces together similar to a permanent velcro. The brazing alloys and fluxes are available at most hvac r suppliers and if the guy at the counter.

Now technically this would be classified as tig brazing because the stainless steel has a higher melting point then the silicon bronze filler rod. Copper to stainless tig welds 10 05 2009 11 46 pm. The gold look of silicon bronze makes stuff look cool. It will subject to 100 x ray prior to the second butt see the outer prep for a 6 sleeve and another co.

Silicon bronze rod has a melting temp of around 1050 c while stainless steel has a melting point of 1400 1450 c. The little details are various. But because of its low melt point silicon bronze tig brazing works better on galvanized sheet than welding with mild steel rods. So here is the video with a few tips on silver brazing copper to steel and brazing stainless steel bolts to some copper washers.

Buy the right copper.