Gold Braze 35623™
Gold Braze 35623™ Technical Data
Uses
The most common use of BAu-3 is for step brazing with BAu-1 & BAu-2. BAu-3 has excellent wetting to Ni, Mo, SS, Kovar and Mo-Mn with minimal diffusion. Also used for high-integrity joints in aerospace and automotive applications, vacuum tubes, wave guide and Klystron assemblies and power surge arrestors. BAu-3 is often brazed under partial pressure due to the high vapor pressure of copper.
Brazing Characteristics
Wets well to superalloys and provides high ductility due to high levels of copper. BAu-3 exhibits lower corrosion resistance than other Au-Ni alloys.
Properties of Brazed Joints
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 gold base alloys fall within .0015-.002” range.
Specifications
GB356523 alloy conforms to: Unified Numbering System (UNS) P00351 and American Welding Society (AWS) A5.8/A5.8M BVAu-3 Grade 1 and Grade 2.
Available Forms
Strip, wire, powder, and preforms to specifications.
Compare With
- AWS: BAu-3
- Lucas: Premabraze 127
- Morgan/Wesgo: Nicoro
- PI: Gold Braze 35623
- UNS: P00350
Specifications
- Brazing Temperature Range High: 1950 F / 1066 C
- Brazing Temperature Range Low: 1900 F / 1038 C
- Liquidus: 1850 F / 1010 C
- Solidus: 1814 F / 990 C
Composition
- Cu: 62%
- Au: 35%
- Ni: 3%
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