Amdry 7703 is a nickel-based braze filler metal with a composition equivalent to AWS BNi-2 and AMS 4777 (grade 325 mesh). Joints of Amdy 7703 have excellent corrosion resistance and strength, with good ductility and oxidation resistance. Use Amdry 7703 for medium size gaps where the joint depth is not extemely deep. Braze Amdry 7703 in vacuum furnaces or furnaces or atmospheres of argon or dry hydrogen. It is available as a powder. It can be ordered as a paste or customized tape on request.
Characteristics
Material type | Brazing Powder |
---|---|
Product form | Powder |
Material safety datasheet number | 50-1038; 50-1095; 50-1104; 50-1117 |
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) | 0.08 |
Brazing gap size range (max) | 0.12 |
Liquidus temp. | 999 |
Solidus temp. | 971 |
Base composition | Nickel |
Nominal chemistry | Ni 7Cr 4.5Si 3B 3Fe |
Max. service temp. | 982 |
Customer specification approved |
AWS A5.8 BNi-2, 325 mesh SAE International AMS 4777, 325 mesh |
Recommended process technology |
Brazing |
Datasheet number | DSM-0337 |