SilverAlloy A-56T


INTRODUCTION

SilverAlloy A-56T has the lowest brazing temperature, best wetting, and best flow of all the cadmium-free alloys. It has a slight plastic range which may be noticed during melting on some applications. Its low zinc content minimizes problems due to longer heating cycles (as in furnace brazing) or due to excessive heating (as by less skilled operators). For this reason, it is often preferred over SilverAlloy 35, SilverAlloy 45, or SilverAlloy 50 for furnace brazing, or any brazing operation where the alloy is molten for an extended period of time. The fact that SilverAlloy A-56T contains no cadmium has led to its use on food- or medical-grade equipment, where cadmium may be considered a hazard and its use is prohibited by law. Excellent replacement to cadmium-containing alloys when low melt temperature is required. Good corrosion properties. Color match to stainless.

APPLICATIONS

Typical applications of SilverAlloy A-56T are the joining of ferrous, non-ferrous, and dissimilar metals, with close joint clearances. It is often selected for use on silver or stainless steel due to its excellent color match. SilverAlloy A-56T is often used also on nickel, nickel alloys, or stainless steel because it does not cause stress cracking as readily as the other low melting brazing filler metals.

GENERAL INFORMATION

Chemical Composition
Silver Copper Zinc Tin
55.0-57.0 21.0-23.0 15.0-19.0 4.5-5.5

ADDITIONAL INFORMATION

Operating temperature for SilverAlloy A-56T is up to 400°F in continuous service and up to 600°F in intermittent service. Where improved corrosion resistance is needed, SilverAlloy Cd-50Ni3 and SilverAlloy A-40Ni2 are recommended over silver base filler metals not containing nickel.

PHYSICAL and MECHANICAL PROPERTIES
Solidus 1145°F (618°C)
Liquidus 1205°F (652°C)
Brazing Range 1205-1400°F (652-760°C)
Specific Gravity 9.49
Density 4.96 TO/Cu.In
Electrical Conductivity 11.9 %IACS
Electrical Resistivity 14.5 μohm-cm
Color White
 
SPECIFICATIONS MEET or EXCEED
AWS A5.8 BAg-7
AMS 4763
ASME BAg-7
QQ-B-654A BAg-7
ISO 3677: B Ag 56 Cu Zn Sn 620-650
BS 1845 Ag20
NFA 81-362, 56 A1
UNS P07563
DIN 8513 L-Ag56Sn
EN 17672 Ag 156
 
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: 1, 3, 5, or 50 troy ounce
 

ALSO AVAILABLE

Newsletter

Keep up with our evolving product features and technology. Enter your e-mail and subscribe to our newsletter.

Latest Tweet

Contact Us

  • Address:
    Aufhauser Corporation
    39 West Mall, Plainview, NY 11803 USA

  • Phone: +1-212-246-0205

  • Email: sales @ brazing.com

Follow Us