BNi?2 Powder for Vacuum BrazingR&D Laboratory Use

Watch out:? Higher brazing temperature than BNi-2; no chromium →limited oxidation resistance at elevated service temperatures
How to Decide — Quick Decision Tree
Step 1:? Does the part need oxidation/corrosion resistance at hightemperature?
Yes → BNi-2
No → Go to Step 2
Step 2:? Is the joint clearance very tight (≤0.05 mm) or theoverlap very long?
Yes → BNi-3
No → Go to Step 3
Step 3:? Do you need more ductility or he wider gaps (0.05–0.15mm)?
Yes → BNi-4
Still unsure → BNi-2? (it covers most cases)
One-Line Summary
Watch out:? Higher brazing temperature than BNi-2; no chromium →limited oxidation resistance at elevated service temperatures
How to Decide — Quick Decision Tree
Step 1:? Does the part need oxidation/corrosion resistance at hightemperature?
Yes → BNi-2
No → Go to Step 2
Step 2:? Is the joint clearance very tight (≤0.05 mm) or theoverlap very long?
Yes → BNi-3
No → Go to Step 3
Step 3:? Do you need more ductility or he wider gaps (0.05–0.15mm)?
Yes → BNi-4
Still unsure → BNi-2? (it covers most cases)
One-Line SummaryRite Material
High joint strength at room and elevated temperature
Industry standard for a reason — it covers 80% of high-temp brazingneeds
Best for:? Stainless steel assemblies, heat exchangers, turbinecomponents, diamond/CBN tool brazing, chemical e, generalindustrial brazing
Watch out:? Chromium forms stable oxides → requires good vacuum ordry protective atmosphere; not for nuclear core applications
 
2. Powder Application Methods
Method A: Make brazing paste (most common for honeycomb, heatexchangers, precision parts)
Mix BNi?2 powder with organic binder at powder : binder = 7:3 ~8:2, stir uniformly. Apply by bing, dispensing or screen printing.Dry at room temperature or 80–120 °C to fully evaporate solvent tooid pores.Rite Material

BNi?2 Brazing Powder for Energy Thermal Components