#A-45T is free flowing, low melting and an excellent substitute to the cadmium-bearing brazing alloys with similar silver contents. #A-45T narrow melt range (75 ºF) makes it suitable for manual or machine feeding into the braze joint. This brazing alloy is best suited for narrow gap filling in the range of 0.001-0.005 inches. #A-45T is particularly useful in brazing steel, copper, copper alloys; and should be used in conjunction with Ultra Flux. The ability to join similar as well as dissimilar metals has allowed for numerous applications in the refrigeration and air conditioning fields.


Melting Pt. 1195 ºF
645 ºC
Flow Pt. 1270 ºF
685 ºC
MBT1 1450
AWS A5.8 BAg-36
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) 275 in @ 0.031 diameter
31 in @ 0.093 diameter
70 in @ 0.062 diameter

Physical Constants

Solidus 1195 ºF
645 ºC
Liquidus 1270 ºF
685 ºC
Brazing Range 1310 to 1550 ºF
710 to 843 ºC
Specific Gravity 8.95
Density 4.72 T.oz./cu.in.
Electrical Conductivity 18 % IACS
Electrical Resistivity 9.60 Micro ohm-cm
Color Pale Yellow


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

Good for dissimilar metals with moderate flow characteristics.

Available Forms

Standard forms of #A-45Tare brazing wire 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) Z.49.1, "Safety in Welding and Cutting." For more complete information, refer to the Material Safety Data Sheet for #A-45T.


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-36
  • EN: AG 104
  • Lucas: Silvaloy 452
  • PI: Silver Braze 45T
  • UNS: P07454


  • Brazing Temperature Range High: 1351 F / 733 C
  • Brazing Temperature Range Low: 1301 F / 705 C
  • Liquidus: 1251 F / 677 C
  • Solidus: 1195 F / 646 C



  • Ag: 45%
  • Cu: 27%
  • Zn: 25%
  • Sn: 3%

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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