Silver Braze 65Ni2
Silver Braze 65Ni2 is a zinc-free brazing alloy commonly used in flux free brazing of Kovar and other low expansion alloys found in vacuum tube applications. Due to its nickel content tt can also be used to successfully join tungsten carbide and other cobalt-containing materials used in cutting tools.
Available Forms
Wire, strip, engineered preforms, specialty preforms per customer specification, powder and paste.
Characteristics
Silver Braze 65Ni2 is an intermediate temperature silver brazing alloy with a slightly wide melt range (175°F) and can therefore tend to liquate if heated slowly between the solidus and liquidus. However, the long melting range is useful when wide gap joints are brazed as it will bridge the gap and produce larger fillets than more fluid filler metals. Silver Braze 65Ni2 can be brazed by both torch and induction as well as under a protective atmosphere.
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 filler metal. The following tensile results were generated from 1020 steel butt joints: Test Temperature (°F) Room Temperature 200 400 600 800 1000 1200 Tensile Strength (lbs/in2) 52,000 52,000 52,000 52,000 29,000 16,000 7,500
Specs
Solidus
1385 F / 750 C
Liquidus
1560 F / 850 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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