Silver solder PSr 65
Silver solder PSr 65 from Ecotec: 65% Ag, 20% Cu, 15% Zn. Eutectic at 620°C. Complies with GOST 19738-2015. Buy from Ecotec.
Description: PSr 65 solder is a two-component silver-copper alloy supplied per GOST 19738-2015.
Regulatory documentation: PSr 65 solders are manufactured in accordance with GOST 19738-2015, PSr 65 wire — GOST 19746-2015, PSr 65 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 65 |
65±0.5 |
20.0±0.5 |
Balance |
— |
— |
— |
— |
— |
— |
— |
0.100 |
0.10 |
0.005 |
0.15 |
Solder dimensions:
|
Solder grade |
Thickness, mm |
Width, mm |
Length, mm |
|||
|
Min |
Max |
Min |
Max |
Min |
Max |
|
|
PSr 65 |
0.1 |
5 |
50 |
200 |
100 |
400 |
Wire diameter:
|
Wire grade |
Diameter, mm |
|
|
Min |
Max |
|
|
PSr 65 |
0.15 |
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 65 |
9450 |
995 (722) |
968 (695) |
8.6 |
Applications:
PSr 65 solder is used for brazing and tinning of jewelry items.
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