Aufhauser SilverAlloy A-50Ni2 is a cadmium-free silver brazing alloy. Addition of nickel to the silver-copper zinc alloy imparts corrosion properties which retards joint or interface corrosion of the brazed assembly.
SilverAlloy A-50Ni2 is a suitable replacement for the cadmium-containing BAg-3 alloy. Its low liquidus of 1305°F (707°C) reduces surface oxidation and sensitization to stainless steels. Typical applications are the joining of 300-series stainless steels in the food, medical, and dental fields. The nickel element in SilverAlloy A-50Ni2 also improves the bond strength when joining tungsten carbide cutting tips. SilverAlloy A-50Ni2 is used for joining most ferrous and non-ferrous metals except aluminum and magnesium. Good replacement for SilverAlloy 50N in carbide brazing.
GENERAL INFORMATIONChemical Composition
Addition of nickel to the silver-copper zinc alloy imparts corrosion properties which retards joint or interface corrosion of the brazed assembly. The nickel element in SilverAlloy A-50Ni2 also improves bond strength when joining tungsten carbide cutting tips. SilverAlloy A-50Ni2 is a suitable replacement to the cadmium-containing SilverAlloy Cd-50Ni3 alloy. Its low liquidus of 1305°F reduces surface oxidation and sensitization to stainless steels.
Generally, the joint strength using SilverAlloy A-50Ni2 will surpass the strengths of the base metals. Strength is a function of the base metals being joined, type of joint, design of joint, joint clearances and brazing procedures. The recommended maximum operating temperature for SilverAlloy A-50Ni2 is up to 700°F (370°C).
PHYSICAL and MECHANICAL PROPERTIES
|Brazing Range||1310-1550°F (710-843°C)|
|Electrical Conductivity||15 %IACS|
|Electrical Resistivity||11.75 μohm-cm|
SPECIFICATIONS MEET or EXCEED
|AWS A5.8 BAg-24|
|ISO 3677: B Ag 50 Zn Cu Ni 660-750|
|EN 17672 Ag 450|
|Wire, Rods*, Foil|
|Specialty preforms per customer specifications|
*STANDARD SIZES AND DIAMETERS
|Diameters: 1/32", 3/64", 1/16", 3/32", 1/8"|
|Sizes: 1, 3, 5, or 50 troy ounce|
|Lengths: 18, 20, or 36 inches|