Nickel Alloys

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% - -