Tim Williams wrote:

Of course, there's a metallurgical side to that gray area I'm sure...

Of corse.

something about braze fillers interlocking in the base metal. Not that it
manages to overturn the old 900°F-is-brazing definition.

Every soldering / brazing (and even welding to some extend) is about
diffusion of two (different) metals. Yes even soldering steel. Soldering
not only "clues" on the surface, it also is going some ore more atomical
layers deep.

For example, soft-solder some pieces of lead. You're hard-pressed to call
that anything but a braze!

By definition, it is soldering.


You might call me dumb, but brazing for me comes from the sound of doing
the job with brass and iron. :-)


Nick

--
Motormodelle / Engine Models
http://www.motor-manufaktur.de