BrazeLet® BNi1A

Nickel-based brazing alloy

The nickel-based brazing alloy BrazeLet BNi1A provides high strength joints with excellent oxidation resistance suitable for brazing stainless steels and nickel-based superalloys. It is suitable for brazing in vacuum or protective atmospheres (dry hydrogen or argon). The alloy is similar to BrazeLet BNi1, but has low carbon content. Joint properties can be further improved by employing a diffusion hold after brazing. The brazing alloy is typically used for joining parts subjected to high stresses and temperatures such as turbine components and diamond tools.

     
 

Nominal composition: Ni – 14Cr – 4.5Si – 4.5Fe – 3.2B
Powder type: Gas atomised
Melting range: 980 – 1080 °C
Minimum brazing temperature: 1175 °C
Recommended gap clearance: 50 – 150 µm
Particle size distribution: -106 (F) µm, -63 µm
Applicable specifications: AMS4776, ISO 17672 Ni610, AWS A5.8M/A5.8 BNi-1a, ISO 3677 B-Ni74CrFeSiB-980/1080

 
     

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