SilverAlloy A-40Ni2


INTRODUCTION

Aufhauser SilverAlloy A-40Ni2 may be used on copper, brass, nickel-silver, bronze, steel. Good corrosion properties with stainless steels. Often used in joining tungsten carbides.

APPLICATIONS

SilverAlloy A-40Ni2 is an intermediate temperature silver brazing filler metal with a fairly long (205°F) melting range. It has a tendency to liquate (i.e. separate into low & high melting constituents), and therefore it is preferable to use this filler metal where the assembly can be heated rapidly through the filler metal melting range, or where the assembly can be preheated before the filler metal is applied. Aufhauser White or Black SilverFlux is normally used with SilverAlloy A-40Ni2. Typical applications are the joining of 300-series stainless steels in food, medical, and dental fields. The nickel element in SilverAlloy A-40Ni2 also improves the bond strength when joining tungsten carbide cutting tips.

GENERAL INFORMATION

CHEMICAL COMPOSITION
Silver Copper Zinc Nickel Total other
40 30 28 2 0.15 max

ADDITIONAL INFORMATION

Generally, the joint strength using SilverAlloy A-40Ni2 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.

PHYSICAL and MECHANICAL PROPERTIES
Solidus 1240°F (671°C)
Liquidus 1435°F (779°C)
Brazing Range 1435-1650°F (779-900°C)
Specific Gravity 8.968
Density 4.658 TO/Cu.In.
Color Light Yellow
 
SPECIFICATIONS MEET or EXCEED
AWS A5.8 BAg-4
ASME BAg-4
UNS P07440
EN 17672 Ag 440
 
AVAILABLE FORMS
Powder/Paste
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 ounces
Lengths: 18, 20, or 36 inches
 
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Contact Us

  • Address:
    Aufhauser Corporation
    39 West Mall, Plainview, NY 11803 USA

  • Phone: +1-212-246-0205

  • Email: sales @ brazing.com