Silver solder PSrO 3-97
Silver solder PSrO 3-97 from Ecotec: 3% Ag, 97% Cu, eutectic 780°C. GOST-certified, ideal for high-temperature joints.
Description: PSrO 3-97 solder is a two-component silver-copper alloy. It is a eutectic alloy.
Regulatory documentation: PSrO 3-97 solders are manufactured in accordance with GOST 19738-2015, PSrO 3-97 wire — GOST 19746-2015, PSrO 3-97 strip — GOST 19739-2015.
Chemical composition of silver solders:
|
Solder grade |
Chemical composition, % |
|||||||||||||
|
Ag |
Cu |
Zn |
Sn |
Mn |
Sb |
P |
Cd |
Ni |
Pb |
Impurities not more than |
||||
|
Pb |
Fe |
Bi |
Sum of determined impurities |
|||||||||||
|
PSrO 3-97 |
3.0±0.3 |
— |
— |
Balance |
— |
— |
— |
— |
— |
— |
0.200 |
0.15 |
0.010 |
0.30 |
Solder dimensions:
|
Solder grade |
Thickness, mm |
Width, mm |
Length, mm |
|||
|
Min |
Max |
Min |
Max |
Min |
Max |
|
|
PSrO 3-97 |
0.1 |
5 |
50 |
200 |
100 |
400 |
Wire diameter:
|
Wire grade |
Diameter, mm |
|
|
Min |
Max |
|
|
PSrO 3-97 |
0.5 |
6 |
Melting point, density and electrical resistivity:
|
Solder grade |
Density, kg/m3 |
Melting point, K (°C) |
Electrical resistivity, 10-3 Ohm·m |
|
|
Upper critical point |
Lower critical point |
|||
|
PSrO 3-97 |
7400 |
498 (225) |
494 (221) |
12.5 |
Applications:
PSrO 3-97 solder is used for brazing and tinning of copper, nickel, copper and copper-nickel alloys with silver-plated ceramics, and for brazing silver-plated parts.
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