| Silvaloy
6 |
 |
| Nominal Composition: |
|
|
| Silver |
|
6.00
± 0.20% |
| Phosphorus |
|
6.00 ± 0.25% |
| Copper
|
|
Balance |
| Total
Other Elements |
|
0.15%
Max. |
| Physical Constants: |
|
|
| Solidus |
|
1190°F
(645°C) |
| Liquidus |
|
1485°F
(806°C) |
| Brazing
Range |
|
1300-1500°F
(643-816°C) |
| Specific
Gravity |
|
8.08 |
| Density
(lb/cu in) |
|
0.292 |
| Electrical
Conductivity (% IACS) |
|
8.8 |
| Electrical
Resistivity (Michrohm-cm) |
|
19.6 |
| Color |
|
Light
Copper |
DESCRIPTION:
Silvaloy 6 is used for the brazing of copper and copper alloys,
brass and bronze. It can also be used on silver, tungsten and
molybdenum. It should not be used on ferrous and nickel metals
or copper alloys containing more than 10% nickel because of phosphorous
embrittlement due to reactions with iron or nickel. Silvaloy 6
is mid-range silver containing copper phosphorous alloy suitable
for wider capillary joint fit up in the range of .003” to .006”.
Silvaloy 6 has been universely accepted by repair and installation
contractors because of its moderate flow with good filleting and
gap filling characteristic when the joint fit up dimensions are
less than ideal.
PROPERTIES
OF BRAZED JOINTS:
Generally, the joint strength using Silvaloy 6 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 temperatures
for Silvaloy 6 are 300°F (continuous service) and 400°F (short
time service). Corrosion resistance is satisfactory except when
the joint is in contact with sulfurous atmosphere (especially
at elevated temperatures).
APPLICATIONS:
The phosphorous content of Silvaloy 6 acts as a fluxing agent
and no flux is necessary when brazing copper to copper joints.
However, when used with a copper alloy or one of the other brazeable
metals, a brazing flux must be used to promote wetting, bonding,
and flow throughout the joint, The flow point of Silvaloy 6 is
1325°F (717°C).
SAFETY
INFORMATION:
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 Silvaloy
6..
AVAILABLE
FORMS:
Standard forms of Silvaloy 6 are wire and preforms.
|
