#A-25T is frequently used for the brazing of steel, copper and brass.  The low silver content makes it an economical alloy in cases where lower ductility is not an issue.


Melting Pt. 1265 ºF 
685 ºC
Flow Pt. 1420 ºF 
770 ºC
MBT1 1550
AWS A5.8 BAg-37
AMS 4772
Resale Options Brazing Paste 
Brazing Rod 
Brazing Strip 
Brazing Wire
Preform Options Brazing Discs 
Brazing Rings 
Brazing Washers 
Custom Designs 
Approx. Wire Length (BCuP/lb.) (BAg/Tr.oz) 285 in @ 0.031 diameter 
31 in @ 0.093 diameter 
70 in @ 0.062 diameter

Physical Constants

Density 4.62 T.oz./cu.in.
Color Light Yellow


Least silver of this family of brazing alloys. Moderate ductility limits joint design and application.

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 should conform to ANSI/ASC Z49.1, "Safety in Welding, Cutting, and Allied Processing." For more 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-37
  • EN: AG 108
  • Lucas: Silvaloy 255
  • PI: Silver Braze 25Sn2
  • UNS: P07523


  • Brazing Temperature Range High: 1535 F / 835 C
  • Brazing Temperature Range Low: 1485 F / 807 C
  • Liquidus: 1435 F / 779 C
  • Solidus: 1270 F / 688 C



  • Cu: 40%
  • Zn: 33%
  • Ag: 25%
  • Sn: 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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