Silver Braze 70
AWS: BAg-10
Silver Braze 70 is commonly used in the silver-smithing 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. Silver Braze 70 is often used in combination to perform sequential or step brazing of adjacent joints, to avoid re-melting the previously made joints. Because of the zinc content, it can be used to join iron and nickel-base alloys The low-zinc content also causes very little change in the brilliance of the enamel, when enameling after brazing.
Available Forms
Wire, strip, engineered preforms, specialty preforms per customer specification, powder and paste.
Characteristics
Silver Braze 70 is an intermediate silver brazing filler metals with a slight tendency to liquate (separation into low and high melting constituents) if heated slowly through the melting range. When Silver Braze 70 is used for brazing silver base alloys, the re-melt temperature is raised by solution of silver in the brazing alloy. Conversely, the re-melt temperature of this brazing alloy is lowered by solution of copper when brazing copper base alloys. Flux is generally used.
Properties
The properties of a brazed joint are dependent upon numerous factors including base metal properties, joint design, metallurgical interaction between the base metal and the filler metal. The results listed below were generated from brazed butt joints which were tested under standard room temperature conditions: Tensile Strength (lbs/in2) Copper: 30,000 - 33,000 Brass: 25,000 - 30,000 Nickel-Silver: 40,000 - 50,000 Elongation (%, 2" gage length) Copper: 5-7 Brass: 16-27 Nickel-Silver: 9-12
Specs
American Welding Society (AWS)
BAg-10
Solidus
1275 F / 691 C
Liquidus
1360 F / 738 C
Disclaimer
The information and recommendations contained in this publication have been provided without charge & compiled from sources believed to be reliable and to represent the best information available on the subject at the time of issue. No warranty, guarantee, or representation is made by the Prince and Izant Company, Inc. as to the absolute correctness or sufficiency of any representation contained in this and other publications; Prince and Izant Company, Inc. assumes no responsibility in connection therewith; nor can it be assumed that all acceptable safety measures are contained in this (and other publications, or that other or additional measures may not be required under particular or exceptional conditions or circumstances.
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