APA 2
Suitable for brazing ceramics to metals as well as other non-metallic components without the need for prior metallization of the contact surface. Typical applications include: ? Aerospace components ? Medical equipment components ? Vacuum tubes ? Wave guide and Klystron assemblies
Available Forms
Available in powder and paste.
Characteristics
Suitable for use in all vacuum brazing applications as well as under partial pressure of argon gas. Brazing of active alloys under protective nitrogen atmosphere is not recommended. It is important to maintain a high purity, oxygen-free environment; any oxidation of reactive elements will limit alloy wettability across the non-metallic surface. For controlled atmosphere brazing or vacuum brazing the recommended radial joint clearance for gold-base alloys ranges between 0-0.002 in (0-0.05 mm).
Properties
The properties of a brazed joint are dependent upon the base metal, joint design and brazing technique. This alloy in particular is ductile and will exhibit exceptional corrosion resistance due to the high gold content.
Specs
Solidus
1780 F / 971 C
Liquidus
1780 F / 971 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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