#A-40N2 has good corrosion resistance properties on stainless steels and is also useful on carbide applications.  This silver brazing alloy is used extensively for the brazing of carbide tips, but flows more sluggishly than #50N


Melting Pt. 1220 ºF 660 ºC
Flow Pt. 1435 ºF 780 ºC
MBT1 1575
AWS A5.8 BAg-4
AMS 4772
Resale Options Brazing Rod 
Brazing Strip 
Brazing Wire
Preform Options Brazing Rings
Brazing Washers 
Custom Designs 
Brazing Slugs 
Approx. Wire Length (BCuP/lb.) (BAg/Tr.oz) 275 in @ 0.031 diameter 
30 in @ 0.093 diameter 
65 in @ 0.062 diameter

Physical Constants

Density 4.76 T.oz./cu.in.
Color Light Yellow


Good corrosion properties with stainless steels. Used in joining of tungsten carbines.

Available Forms

#A-40N2 is available in wire, rod, strip and preforms.

Safety Information

It is essential that adequate ventilation be provided so that personnel will not inhale gases and fumes while brazing. The operation and maintenance of brazing equipment or facility should conform to ANSI/ASC Z49.1, "Safety in Welding, Cutting and Allied Processing." For complete information, refer to the MSDS.


Download SDS Sheet

Bellman-Melcor distinguishes itself as a provider of premium quality brazing alloys at industry competitive prices. Our extensive inventory of brazing and soldering alloys ensures that in most cases your order can be available for immediate delivery.


Compare With

  • AWS: BAg-4
  • Lucas: Silvaloy 403
  • PI: Silver Braze 40Ni2
  • UNS: P07400


  • Brazing Temperature Range High: 1535 F / 835 C
  • Brazing Temperature Range Low: 1485 F / 807 C
  • Liquidus: 1435 F / 779 C
  • Solidus: 1240 F / 671 C



  • Ag: 40%
  • Cu: 30%
  • Zn: 28%
  • Ni: 2%

The information and recommendations contained in this publication have been provided without charge & compiled from sources believed to be reliable and to represent the best information available on the subject at the time of issue. No warranty, guarantee, or representation is made by the Prince and Izant Company, Inc. as to the absolute correctness or sufficiency of any representation contained in this and other publications; Prince and Izant Company, Inc. assumes no responsibility in connection therewith; nor can it be assumed that all acceptable safety measures are contained in this and other publications, or that other or additional measures may not be required under particular or exceptional conditions or circumstances. The company and product names referenced herein are for identification purposes only. All trademarks and registered trademarks are the property of their respective owners.

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