| Silvaloy
A-50N (BAg-24) |
 |
| Nominal
Composition: |
|
|
| Silver |
|
50.0
± 1.0% |
| Copper |
|
20.0 ± 1.0% |
| Zinc
|
|
28.0
± 2.0 % |
| Nickel |
|
2.0
± 0.5 % |
| Total
Other Elements |
|
0.15%
Max. |
| Physical
Constants: |
|
|
| Solidus |
|
1220°F
(660°C) |
| Liquidus |
|
1305°F
(705°C) |
| Brazing
Range |
|
1310-1550°F
(710-843°C) |
| Specific
Gravity |
|
8.98 |
| Density
(T.oz./cu.in.) |
|
4.73 |
| Electrical
Conductivity (% IACS) |
|
15.0 |
| Electrical
Resistivity (Microohm-cm) |
|
11.75 |
| Color |
|
Light
Yellow |
DESCRIPTION:
Silvaloy A-50N is a silver brazing alloy
that has found numerous applications for joining 300 series stainless
steels in the food, medical and dental fields. The absence of
cadmium in the alloy permits direct contact to food and for various
medical or hospital applications. Addition of nickel to the silver-copper
zinc alloy imparts corrosion properties which retards joint or
interface corrosion of the brazed assembly. The nickel element
in Silvaloy A-50N also improves the bond strength when joining
of tungsten carbide cutting tips. Silvaloy A-50N is a suitable
replacement to the cadmium containing BAg-3 alloy. Its low liquidus
of 1305°F reduces surface oxidation and sensitization to stainless
steels.
PROPERTIES
OF BRAZED JOINTS:
Generally, the joint strength using Silvaloy
A-50N 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. The
recommended maximum operating temperature for Silvaloy A-50N is
up to 700°F (370°C).
APPLICATIONS:
Typical applications are the joining of
300 series stainless steels in the food, medical, and dental fields.
A good replacement to Silvaloy 50N in attaching carbides.
| SPECIFICATIONS: |
|
| AWS
A5.8 |
BAg-24 |
| ASME
|
BAg-24 |
| AMS
|
4788 |
SAFETY INFORMATION:
It is essential that adequate ventilation
be provided so that personnel will not inhale gases and fumes
while 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 Silvaloy A-50N.
AVAILABLE
FORMS:
Standard forms of Silvaloy A-50N are wire,
strip, and preforms.
|
