Silver solder PSr 3Kd
Silver solder PSr 3Kd from Ecotec: Ag-Cu eutectic with a melting point of 780°C, suitable for high-temperature joints.
Description: PSr 3Kd solder is a two-component silver-copper alloy. It is a eutectic alloy.
Regulatory documentation: PSr 3Kd solders are manufactured in accordance with GOST 19738-2015, PSr 3Kd wire — GOST 19746-2015, PSr 3Kd 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 |
|||||||||||
|
PSr 3Kd |
3.0±0.5 |
— |
1.0±0.5 |
— |
— |
— |
— |
Balance |
— |
— |
0.200 |
0.10 |
0.010 |
0.30 |
Solder dimensions:
|
Solder grade |
Thickness, mm |
Width, mm |
Length, mm |
|||
|
Min |
Max |
Min |
Max |
Min |
Max |
|
|
PSr 3Kd |
0.1 |
5 |
50 |
200 |
100 |
400 |
Wire diameter:
|
Wire grade |
Diameter, mm |
|
|
Min |
Max |
|
|
PSr 3Kd |
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 |
|||
|
PSr 3Kd |
8700 |
615 (342) |
587 (314) |
8.0 |
Applications:
PSr 3Kd solder is used for soldering copper, copper alloys, and steels over a freshly applied copper galvanic coating of at least 10 microns.
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