Product Specifications


AM Ni-3 is a Nickel based brazing alloy primarily used to join stainless steel, nickel and cobalt based alloys. AM Ni-3 is excellent for corrosion and oxidation resistance in high temperature applications. 


Brazing Characteristics

AM Ni-3 brazes very well in hydrogen and vacuum atmospheres. AM Ni-3 is a free-flowing alloy (within the capillary) and will diffuse into the base metal creating an intermetallic layer. Recommended joint clearance at brazing temperature for AM Ni-3 is 0.000 in. – 0.002 in. (0.00 mm – 0.05 mm). A minimum brazing temperature of 1930°F (1055°C) is recommend for furnace and vacuum applications



AM Ni-3 conforms to American Welding Society (AWS) A5.8/A5.8M 2019: BNi-3 and Society of Automotive Engineers (SAE) AMS 4778


Available Forms

Atomized Powder and Paste


Compare With:

  • AMS: 4778
  • AWS: BNi-3
  • Wesgo: Nibsi-4
  • Metglas: MBF-30 
  • EN: Ni 103
  • Lucas: Handy Hi-Temp 910 
  • PI: AMS 4778
  • UNS: N99630


  • Brazing Temperature Range High:  1994°F / 1090°C
  • Brazing Temperature Range Low:  1930°F / 1055°C
  • Liquidus:  1900°F / 1038°C
  • Solidus: 1800°F / 982°C


  • Ni: 92.3%
  • Si: 4.5%
  • B: 3.2%