#A-45 is a good general purpose brazing alloy often used when cadmium must be avoided such as in the dairy and food industries. It is also used for brazing in the electrical industry and for brazing brass parts such as ships’ piping, band instruments, lamps, etc.


Melting Pt. 1225 ºF
660 ºC
Flow Pt. 1370 ºF
740 ºC
MBT1 1500
AWS A5.8 BAg-5
AMS 4772
QQ-B-654 BAg-5
MIL-B-15395 Grade 1
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) 270 in @ 0.031 diameter 
30 in @ 0.093 diameter
65 in @ 0.062 diameter

Physical Constants

Solidus 1225 ºF
663 ºC
Liquidus 1370 ºF
743 ºC
Brazing Range 1370 to 1550 ºF
743 to 843 ºC
Specific Gravity 9.11
Density 4.80 T.oz./cu.in.
Electrical Conductivity 19.0 % IACS
Electrical Resistivity 9.08 Micro ohm-cm
Color Yellow White


Typical applications are the joining of ferrous, nonferrous and dissimilar metals and alloys with close joint clearances.

Excellent replacement to cadmium containing alloys. Broad application in furnace brazing.

Available Forms

Standard forms of #A-45 are brazing wire, brazing strip, and brazing 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 the provisions of American National Standard (ANSI) Z49.1, "Safety in Welding and Cutting". For more complete information, refer to the Material Safety Data Sheet for #A-45.


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-5
  • Lucas: Silvaloy 450
  • PI: Silver Braze 45
  • UNS: P07453


  • Brazing Temperature Range High: 1470 F / 799 C
  • Brazing Temperature Range Low: 1420 F / 771 C
  • Liquidus: 1370 F / 743 C
  • Solidus: 1225 F / 663 C



  • Ag: 45%
  • Cu: 30%
  • Zn: 25%

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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