| Premabraze 127 can be used on any of the common nickel, molybdenum and iron base heat resistant alloys. Because of its low penetration of the base metal, it is well suited for brazing of thin sections, such as thin wall tubing or electronic vacuum devices. Premabraze 127 is readily used in brazing of nickel-cobalt-iron alloys and metallized ceramics. Premabraze 127 is a modified gold-copper alloy. The addition of nickel renders this alloy somewhat more sluggish in flow characteristics but improves wettability on ferrous alloys. Premabraze 127 is generally used in a vacuum, or a reducing, or inert atmosphere. It is a more ductile alloy and less susceptible to hydrogen embrittlement than standard gold-copper alloys. Premabraze 127 is less likely to penetrate the grain boundaries of glass sealing such as nickel-cobalt-iron alloys in comparison to standard gold-copper alloys. The composition of the alloy allows for use in applications where braze filler metals low in volatile constituents are required. Available forms: Wire, strip, engineered preforms, specialty preforms, powder and paste. Information provided by Lucas-Milhaupt. |
