Gold Braze 5025
AWS: BVAu-7
Gold Braze 5025 can be used on any of the common ferrous, non-ferrous, and super alloys. In aerospace industry, Gold Braze 5025 can be used in brazing of fuel line assemblies and aero-engine components. Gold Braze 5025 can be used as the highest melting BAu alloy for step brazing in conjunction with AMS 4786 and AMS 4787.
Available Forms
Wire, strip, rod, engineered preforms and specialty preforms per customer specification, powder and paste.
Characteristics
Gold Braze 5025 wets a wide range of high temperature iron and nickel base alloys such as the stainless steels, A286, Inconel and Inconel X very well. It does not alloy excessively with these materials nor produce the severe intergranular penetration normally associated with the nickel based brazing alloys containing boron. Gold Braze 5025 has increased ductility compared to the other gold/nickel alloys, due to its increased level of Pd. Joint clearances of 0.0015” - 0.003” are normally suggested.
Properties
The properties of a brazed joint are dependent upon numerous factors including base metal properties, joint design and brazing technique. For controlled atmosphere brazing or vacuum brazing the recommended radial joint clearance for gold base alloys fall within 0.000in – 0.002in (0.00mm-0.05mm) range.
Specs
American Welding Society (AWS)
BVAu-7
Solidus
2015 F / 1101 C
Liquidus
2050 F / 1121 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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