Silver Alloys

Brazing is a technique of joining metals or ceramics where the joint bond is formed by the capillary attraction of the liquid filler metal into the gap between the narrowly fitted surfaces. Brazing differs from welding in that only the melting of the filler metal is involved in the creation of the joint assembly.
Brazing offers multiples advantages over welding, namely:
  • Operation speed;
  • Possibility of forming several joints at once, even on complex geometries;
  • Possibility of combining brazing and a post-braze heat treatment (PBHT), such as tempering or aging, in the same thermal cycle;
  • Less deformation
  • Insignificant impact on base metal properties (mechanical properties or corrosion resistance).
A distinction is made between brazing and soldering, depending on the melt temperature of the filler metal:
  • Brazing involves the use of braze filler rods with a melting point above 450°C (900°F): copper alloys, silver alloys, nickel alloys, cobalt alloys, gold alloys, and aluminum alloys.
  • Soldering involves the use of solder filler metals with a melting point below 450°C (900°F), particularly the following alloys: tin-lead (Sn-Pb), tin-silver (Sn-Ag), tin-silver-copper (Sn-Ag-Cu), tin-antimony (Sn-Sb), and zinc-aluminum (Zn-Al).
Contact our metallurgists, to get the right alloy for your welding project.