It's inevitable that every time this topic comes up, someone confuses
the 2 or 3% silver-loaded tin-lead solder with the hard solders known as
"silver solder". They're entirely different things. The 2 or 3%
silver-loaded tin-lead solder is a soft solder, very similar in use and
properties to ordinary tin-lead solder. The "silver solders" used for
brazing stainless steel and other materials are hard solders, with a
much higher melting point and very different properties.

Roy Lewallen, W7EL

Jim - NN7K wrote:
Also, there are things like stainless steel, and aluminium that don't
like regular 60/40 solder-- however silver solder will solder to
stainless antenna rods (repair antenna whips, ect). . .