I did a Google search and came up with some interesting definitions for brazing:

BRAZING
Joining metals by fusion of nonferrous alloys that have melting points above 800°F. but lower than those of the metals being joined. This may be accomplished by means of a torch (torch brazing), in a furnace (furnace brazing) or by dipping in a molten flux bath (dip or flux brazing). The filler metal is ordinarily in rod form in torch brazing; whereas in furnace and dip brazing the work material is first assembled and the filler metal may then be applied as wire, washers, clips, bands, or may be integrally bonded, as in brazing sheet.
http://www.rollformedshapes.com/metalterms.htm


Brazing is a joining process whereby a filler metal or alloy is heated to melting temperature above 450 °C (840 °F)—or, by the traditional definition in the United States, above 800 °F (427 °C)—and distributed between two or more close-fitting parts by capillary action. At its liquid temperature, the molten filler metal and flux interacts with a thin layer of the base metal, cooling to form a strong, sealed joint. By definition the melting temperature of the braze alloy is lower (sometimes substantially) than the melting temperature of the materials being joined. The brazed joint becomes a sandwich of different layers, each metallurgically linked to the adjacent layers.

Common brazements are about 1⁄3 as strong as the parent materials[citation needed] due either to the inherent lower yield strength of the braze alloy or to the low fracture toughness of intermetallic components. To create high-strength brazes, a brazement can be annealed to homogenize the grain structure and composition (by diffusion) with that of the parent material . On the other hand, brazed joints in automotive sheet metal are considerably stronger than the surrounding native sheet steel[1].
http://en.wikipedia.org/wiki/Brazing


Brazing: This form of soldering utilizes high temperature alloys to join high temperature metals. When brazing sterling, care must be used to prevent firescale or firestain which is formed at higher temperatures than soldering.
http://www.silversmithing.com/glossary.htm

brazing - Welding with brass alloy rods
http://www.fdjtool.com/custom.aspx?id=17

BRAZE
To join metal surfaces using brass, bronze, or copper as a filler material.
http://www.horseshoes.com/glossary/b/glsrb.htm

brazing. Joining metals by flowing a thin layer, capillary thickness, of nonferrous filler metal into the space between them. Bonding results from the intimate contact produced by the dissolution of a small amount of base metal in the molten filler metal without fusion of the base metal. Sometimes the filler metal is put in place as a thin solid sheet or as a clad layer and the composite is heated as in furnace brazing. The term brazing is used where the temperature exceeds some arbitrary value, such as 800° F; the term soldering is used for temperatures lower than the arbitrary value.
http://www.nedians.8m.com/metalglos.html

Now in my business if we did it with oxygen and acetylene it was called brazing. If we did it with a Turbo Torch it was soldering.

It would seem that a case can be made to call a soldering process that requires 800F or higher temps brazing; independent of the brazing rod's content as long as it is nonferrous.
Best,

Mike


Last edited by AmarilloMike; 01/24/09 07:34 AM.

I am glad to be here.