GE B50TF217
AWS: BNi-5a
BNi-5a is suitable for the brazing of nickel, chromium, or iron base metals. Some applications include highly stressed sheet metal components, jet engine parts, and assemblies used in corrosive conditions.
Available Forms
Foil, powder, paste, tape and preforms to customer specifications
Characteristics
BNi-5a has a lower silicon content than BNi-5 but it’s still a good choice for narrow, deep joints or for honeycomb components. It also contains less boron than BNi-5. When wetting to base metals which contain higher Al or Ti content in an inert atmosphere, nickel plating of the base metal is recommended. Dry reducing atmospheres or inert atmospheres are recommended.
Properties
The properties of a brazed joint are dependent upon the base metal, joint design and brazing technique. For atmospheric brazing the recommended radial joint clearance for nickel-base alloys fall within .000-.002” range for atmosphere brazing.
Specs
American Welding Society (AWS)
BNi-5a
Solidus
1931 F / 1065 C
Liquidus
2111 F / 1150 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.
Resources Center
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