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Interesting. I have not experimented much with oxy/acetylene welding, since it is so bad about speed and warpage. I never use solder for anything but electronics and copper pipe.

Since i also work with silver i had to learn how to solder. And brass solder is quite strong. I used it on mechanic parts were i could not weld. (because i only use a rod welder for budged reasons) And on tungsten carbide tools to connect the crabite with steel.

Right on. I did solder a silver ring I made once, but that is all.