SilverAlloy A-38T


INTRODUCTION

Aufhauser SilverAlloy A-38T has similar melt temperatures to cadmium-containing alloys SilverAlloy Cd-30 and SilverAlloy Cd-35. The tin content provides good wetting on many difficult to wet metals such as stainless steel and tungsten carbide.

APPLICATIONS

The tin content provides good wetting on many difficult to wet metals such as stainless steel and tungsten carbide. This alloy, being free of lead (Pb) or cadmium (Cd) is preferred for long heating cycles and is suitable for use in controlled atmosphere brazing without flux. Typical applications are the joining of ferrous, nonferrous and dissimilar metals and alloys with close joint clearances. SilverAlloy A-38T is used for joining ferrous metals (stainless steel, tungsten or molybdenum carbide), and nonferrous (copper, copper alloys, nickel, nickel alloys). The largest use of this alloy is for furnace brazing although it is also suitable for other brazing procedures.

GENERAL INFORMATION

CHEMICAL COMPOSITION
Silver Copper Zinc Tin
37-39 31-33 26-30 1.5-2.5
PHYSICAL and MECHANICAL PROPERTIES
Solidus 1200°F (649°C)
Liquidus 1330°F (721°C)
Brazing Range 1330-1550°F
Specific Gravity 9.05
Density 4.77 TO/Cu.In.
Electrical Conductivity 18 %IACS
Electrical Resistivity 9.50 Microhm-cm
Color Light Yellow
 
SPECIFICATIONS MEET or EXCEED
AWS A5.8 BAg-34
 
AVAILABLE FORMS
Powder/Paste
Wire, Rods*, Foil
Specialty preforms per customer specifications
 
*STANDARD SIZES AND DIAMETERS
Diameters: 1/32", 3/64", 1/16", 3/32", 1/8"
Sizes: 18", 20", 36" cut lengths
 

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    Aufhauser Corporation
    39 West Mall, Plainview, NY 11803 USA

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