Welding Copper to Stainless

[bienen]

I am considering fabricating some brewing equipment instead of buying, has anyone welded copper to stainless? What filler materials did you use?

Test sample: first picture is weld side, second picture is back of weld.

 

[PintoBean]

You cannot "weld" ferrous and non-ferrous metals together. You can however braze or solder them together with a silver based filler.

 

[outside92129]

What are you going to use it for? What alloys are you planning to join?

http://www.millerwelds.com/resource...hread.php?19107-Copper-to-stainless-TIG-welds

 

[bienen]

Alloys: 316 or 321 stainless / 110 or 101 copper. My primary focus is wort chillers, future projects are kettles.

The test samples that are pictured are; 17-7 stainless and 110 copper. The fusion weld is autogenous (no filler material fusion). The copper sheet is .010 thicker than the stainless and pulled into the weld join. The copper flowed similar to silicon bronze...