Lucas-Milhaupt PREMABRAZE® 140 Gold-Copper Braze Alloy

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Lucas-Milhaupt PREMABRAZE® 140 Gold-Copper Braze Alloy
Categories:	Metal; Nonferrous Metal; Copper Alloy; Solder/Braze Alloy
Material Notes:	Alloy Premabraze 140 is a high-purity gold/copper alloy which is commonly used in vacuum brazing. Premabraze 140 can be used on any of the common ferrous and non-ferrous alloys – which may include copper, nickel and Kovar. This alloy exhibits good wetting characteristics on metallized ceramics. Typical applications include brazing of electron tubes, vacuum tubes, radar devices, wave guides in the electronic industry, and other aerospace applications. Premabraze 140 is readily used in the brazing of ceramic to metal seals. Premabraze 140 is generally used in reducing, vacuum, or inert atmospheres. The composition of the alloy allows for use in applications where braze filler metals low in volatile constituents are required. Due to its narrow plastic range, Premabraze 140 exhibits free flowing characteristics. Available forms: Wire, strip, engineered preforms, specialty preforms, powder and paste. Information provided by Lucas-Milhaupt.
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Available Properties
Specific Gravity Density Electrical Resistivity, 20.3% IACS Melting Point Solidus Liquidus Processing Temperature, Brazing Range Cadmium, Cd Carbon, C Copper, Cu, Remainder Gold, Au Lead, Pb Other, each, High vapor pressure elements. Other, total, high vapor pressure elements (Including zinc, cadmium, and lead) Phosphorus, P Zinc, Zn

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