Lucas-Milhaupt BRAZE 750 (Hard) Silver Based Cadmium Free Filler Metal

Subcategory: Silver Alloy; Copper Alloy; Zinc Alloy; Nonferrous Metal; Solder/Braze Alloy

Material Notes:

Characteristics: This alloy is a intermediate silver brazing filler metals with a slight tendency to liquate (i.e. separate into low and high melting constituents) if heated slowly through their melting ranges. When this filler metal is used for brazing silver base alloys, the remelt temperature is raised by solution of silver in the brazing alloy. Conversely, the remelt temperature of this brazing alloy is lowered by solution of copper when brazing copper base alloys.

Applications: This brazing filler metal is commonly used in the silversmithing trade and other applications where their silver-white color is advantageous in color-matching, and the corrosion resistance of high-silver, low-zinc alloy is desired.

This filler metal is often used in combination to perform sequential or step brazing of adjacent joints, to avoid remelting the previously made joints.

Because of its zinc content, this filler metal can be used to join iron and nickel-base alloys. The low-zinc content of Braze 750 minimizes zinc fuming when furnace brazing, particularly in a controlled atmosphere without flux. The low-zinc content also causes very little change in the brilliance of the enamel, when enameling after brazing.

Information provided by Lucas-Milhaupt, Inc.