C - Chemistry – Metallurgy – 22 – C
Patent
C - Chemistry, Metallurgy
22
C
75/16, 113/83
C22C 30/02 (2006.01) C22C 19/03 (2006.01)
Patent
CA 1085653
Abstract of the Disclosure A nickel base, relatively low temperature brazing alloy, particu- larly suitable for brazing, carbon and low alloy steels, nickel base alloys, copper alloys and stainless steels, (including thin sections, eg. honeycomb) in dry- hydrogen or inert atmospheres at partial-pressure or high vacuums. The brazing alloy is also suitable for brazing in "wet" endothermic and dissociated ammonia atmospheres. The brazing alloy consists essentially of, by weight, about 19 to 23 per cent manganese, 5 to 8 per cent silicon, 4 to 6 per cent copper, 0.6 to 1.8 per cent boron, 0.01 to 0.2 per cent rare earth, preferably mischmetal, additions of up to 3 per cent tantalum, molybdenum, columbium, tungsten, and aluminum, under 0.3 per cent carbon and the balance nickel. The brazing alloys of this Invention will braze below 1850°F, permit multiple braze cycles without remelting and provide joint service temperature to 1700°F.
289668
Alloy Metals Inc.
G. Ronald Bell & Associates
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