Gold Braze 5050™
Gold Braze 5050™ Technical Data
Gold Braze 5050 can be used on any of the common ferrous and non-ferrous alloys. This alloy exhibits good wetting characteristics on metallized ceramics. Typical applications include brazing of electron tubes, vacuum tubes, radar devices, and wave guides in the electronic industry. This alloy is readily used in the brazing of ceramic to metal seals.
Gold Braze 5050 is generally used in reducing, vacuum or inert atmospheres. It is a less ductile alloy than standard gold-copper-nickel alloys. The composition of the alloy allows for use in applications where braze filler metals low in volatile constituents are required. This alloy exhibits free flowing characteristics due to its narrow melt range.
Properties of Brazed Joints
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.
Gold Braze 5050 alloy conforms to: American Welding Society (AWS) A5.8/A5.8M BVAu-10
Wire, strip, engineered preforms, specialty preforms per customer specification, powder and paste.
- AWS: BVAu-10
- Lucas: Prembraze 402
- Morgan/Wesgo: Au50Cu50
- PI: Gold Braze 5050
- Brazing Temperature Range High: 1878 F / 1026 C
- Brazing Temperature Range Low: 1828 F / 998 C
- Liquidus: 1778 F / 970 C
- Solidus: 1751 F / 955 C
- Cu: 50%
- Au: 50%
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