PAL 47
PAL 47 can be used on any common molybdenum, tungsten or iron based heat-resistant alloys. The addition of nickel compared to other palladium-based alloys will also allow for adherence to stainless steel, superalloys and cemented carbides.
Available Forms
Wire, strip, engineered preforms and specialty preforms per customer specification, powder and paste.
Characteristics
PAL 47 does not have an overly wide melt range and therefore will not exhibit any significant liquation. The palladium content in PAL 47 inhibits the potential of stress corrosion cracking in iron-nickel base metals in comparison to standard silver-copper alloys. PAL 47 also exhibits higher corrosion and oxidation resistance than standard silver-copper alloys. This alloy composition is ideal for use in applications which require a low volume of volatile constituents.
Properties
The properties of a brazed joint are dependent upon the base metal, joint design and brazing technique. For controlled atmosphere brazing or vacuum brazing the recommended radial joint clearance for silver base alloys falls within 0.000in – 0.002in (0.00mm – 0.05mm) range.
Specs
Solidus
1490 F / 810 C
Liquidus
1564 F / 851 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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