#A-38T

A general purpose brazing alloy providing good flow and ductility. Forms good fillets and is an economical alternative to other cadmium-free alloys. #A-38T is used for brazing ferrous metals, copper, copper alloys, nickel, nickel alloys and combinations of these metals. The tin content provides good wetting on many difficult wet metals such as stainless steel and tungsten carbide. This alloy, being free of Zn or Cd, preferred for long heating cycles and is suitable for use in a controlled atmosphere brazing without flux. The greatest use of this alloy is during furnace brazing, although it is also suitable for other brazing procedures.

Specifications

Melting Pt. 1200 ºF
650 ºC
Flow Pt. 1330 ºF
720 ºC
MBT1 1500
AWS A5.8 BAg-34
ASME NA
AMS 4761
Resale Options Brazing Paste 
Brazing Rod 
Brazing Strip 
Brazing Wire
Preform Options Brazing Discs 
Brazing Rings 
Brazing Washers 
Custom Designs 
Cut-Offs 
Edgewounds
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

Solidus 1200 ºF
649 ºC
Liquidus 1330 ºF
721 ºC
Brazing Range 1330 to 1550 ºF
721 to 843 ºC
Specific Gravity 9.05
Density 4.77 T.oz./cu.in.
Electrical Conductivity 18 % IACS
Electrical Resistivity 9.50 Micro ohm-cm
Color Pale Yellow

Applications

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

Similar melt temperatures to cadmium alloys Sil. 30 and Sil. 35. Suitable for ferrous and non ferrous.

Available Forms

Standard forms of Brazeit #A-38T are 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) Z49.1, "Safety in Welding and Cutting". For more complete information refer to the Material Safety Data Sheet for Brazeit A-38T.

Downloads

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

  • AMS: 4761
  • AWS: BAg-34
  • Lucas: Silvaloy 380
  • PI: Silver Braze 38
  • UNS: P07380

Specifications

  • Brazing Temperature Range High: 1430 F / 777 C
  • Brazing Temperature Range Low: 1380 F / 749 C
  • Liquidus: 1330 F / 721 C
  • Solidus: 1200 F / 649 C

Composition

 

  • Ag: 38%
  • Cu: 32%
  • Zn: 28%
  • 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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