Nickel brazing alloys are generally used when braze specifications call for corrosion resistance and high-temperature service properties but can also be used in subzero applications. Nickel alloys have low vapor pressure, making these alloys suitable for vacuum systems and vacuum tube applications. We recommend using our Prince & Izant GWH-LB flux when torch, air-atmosphere furnace, or induction coil brazing. Because of their joint strength and corrosion resistance, nickel brazing alloys are ideal for jet engine parts and assemblies, food handling equipment, nuclear energy, and carbide tools.
| Product | AWS | AMS | Composition | Solidus | Liquidus |
|---|---|---|---|---|---|
| AMS 4782 | BNi-5 | 4782 | CR 19% NI 71% SI 10% | 1975 F | 2075 F |
| AMS 4775 | BNi-1 | 4775 | B 3% C 0.8% CR 14% FE 4.5% NI 73% SI 4.5% | 1790 F | 1900 F |
| AMS 4776 | BNi-1a | 4776 | B 3% CR 14% FE 4.5% NI 74% SI 4.5% | 1790 F | 1970 F |
| AMS 4777 | BNi-2 | 4777 | B 3.125% CR 7% FE 3% NI 82.375% SI 4.5% | 1780 F | 1830 F |
| AMS 4778 | BNi-3 | 4778 | B 3% NI 92% SI 4.5% | 1800 F | 1900 F |
| AMS 4779 | BNi-4 | 4779 | B 1.9% NI 94.6% SI 3.5% | 1800 F | 1950 F |
| GE B50TF17 Class A | - | - | NI 99.5% | - | - |
| GE B50TF17 Class B | - | - | NI 99% | - | - |