SilverAlloy A-45T
Nominal Chemical
Composition
INTRODUCTION
Aufhauser SilverAlloy A-45T is a low temperature, cadmium free, filler metal suitable for brazing ferrous and non-ferrous base metals. The lower brazing temperature and free-flowing characteristics makes the A-45T an excellent substitute to the cadmium-bearing filler metals with similar silver contents.
APPLICATIONS
SilverAlloy A-45T narrow melt range (75°F) makes it suitable for manual or machine feeding into the braze joint. The alloy is best suited for narrow gap filling in the range of 0.001-0.005 inches. SilverAlloy A-45T is particularly useful in joining steel, copper, copper alloys, and should be used in conjunction with Aufhauser White SilverFlux. The ability to join similar as well as dissimilar metals has allowed for numerous applications in the refrigeration and air conditioning fields.
GENERAL INFORMATION
Chemical Composition| Silver | Copper | Zinc | Tin |
|---|---|---|---|
| 44.0-46.0 | 26.0-28.0 | 24.0-26.0 | 2.5-3.5 |
ADDITIONAL INFORMATION
Generally, the joint strength using SilverAlloy A-45T will surpass the strengths of the base metals. Strength is a function of the base metals being joined, type of joint, design of joint, joint clearances and brazing procedures. SilverAlloy A-45T is often used to braze any steels, nickel, nickel-based copper and copper-based alloys. Both flame and induction brazing techniques can be used.
PHYSICAL and MECHANICAL PROPERTIES
| Solidus | 1195°F (646°C) |
| Liquidus | 1251°F (677°C) |
| Brazing Range | 1251-1495°F (677-813°C) |
| Specific Gravity | 9.20 |
| Density | 4.85 TO/Cu.In |
| Electrical Conductivity | 18.0 %IACS |
| Electrical Resistivity | 9.60 microhm-cm |
| Color | Pale Yellow |
SPECIFICATIONS MEET or EXCEED |
| AWS A5.8 BAg-36 |
| ISO 3677: B Ag 45 Cu Zn Sn 640-680 |
| DIN 8513 LAg 45Sn |
| UNS P07145 |
| EN 17672 Ag 145 |
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 |
| Lengths: 18, 20, or 36 inches |