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Joining dissimilar metals…. copper and steel

21K views 41 replies 24 participants last post by  Equilibrium  
Your turbotorch should silver solder, although with large heavy pieces a large tip might be necessary. If you had oxy-acetylene I would suggest brazing. Silver solder works very well and is very strong. Sand the base material shiny, flux it, and put a small piece of silver solder between the two pieces. When they come together, you should be done. If you see a little line of solder between the two pieces, you know you have a good joint. I have not used silver solder on steel, but I would not expect any problems. Silver solder is a great process, cool to watch it flow, but realize that the parts will need to be very hot, probably glowing a dull red or so.

I am sure that there are other folks with more experience with silver solder than I. ;-)