The tin content in SILVALOY® A38T FC provides good wetting on many difficult to wet metals such as stainless steel and tungsten carbide. This alloy, being free of Pb or Cd is preferred for long heating cycles. The recommended maximum operating temperature for SILVALOY A38T FC is up to 400°F in continuous service and up to 600°F in intermittent service. The flux coating is a water base mixture consisting of potassium salts of fluorine and boron. When the rod is placed into the torch flame, the flux will melt several hundred degrees before the alloy, flowing onto the work surface and preparing the surface for the subsequent melting of the braze alloy.

Applications
Typical applications are the joining of ferrous, nonferrous and dissimilar metals and alloys with close joint clearances. SILVALOY A38T FC is used for joining ferrous metals (stainless steel, Tungsten or molybdenum carbide), and nonferrous (copper, copper alloys, nickel, nickel alloys). The largest use of this alloy is for furnace brazing although it is also suitable for other brazing procedures.