Amdry 7801 is a nickel-based, chromium-free, braze filler metal with a composition of AWS BNi-3 and AMS 4778 (grade 140C). Its relatively low melting temperature makes it a good candidate when the braze temperature has to be kept low, and its excellent ductility makes it a good choice for applications that undergo stress in service. Braze in vacuum, argon, or dry hydrogen atmospheres. Amdry 7801 is available as a powder. It is available as a paste or customized tape on request.
Characteristics
Material type | Brazing Powder |
---|---|
Product form | Powder |
Material safety datasheet number | 50-1039; 50-1097; 50-1106; 50-1119 |
Achieved surface function primary |
Dimensional Restoration |
Suitable for service environmen |
Combustion/Flue Gas |
Recommanded brazing range (min) | 1010 |
Recommanded brazing range (max) | 1177 |
Brazing gap size range (min) | 0.01 |
Brazing gap size range (max) | 0.1 |
Liquidus temp. | 1038 |
Solidus temp. | 982 |
Base composition | Nickel |
Nominal chemistry | Ni 4.5Si 3.2B |
Customer specification approved |
AWS A5.8 BNi-3, 140C GE B50TF205, Class A Honeywell Allied Signal EMS 54752 Type IX Rolls-Royce plc MSRR 9500/114 SAE International AMS 4778, 140C |
Recommended process technology |
Brazing |
Datasheet number | DSM-0284 |