Silver solder PSr 2.5S
Silver solder PSr 2.5S from Ecotec: a two-component alloy with 2.5% silver and 97.5% copper. Eutectic at 779°C, GOST 19738-2015. Buy!
Description: PSr 2.5S solder is a two-component silver-copper alloy. PSr 2.5S solder is a eutectic alloy.
Regulatory documentation: PSr 2.5S solders are manufactured in accordance with GOST 19738-2015, PSr 2.5S wire — GOST 19746-2015, PSr 2.5S 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 2.5S |
2.5±0.2 |
— |
— |
— |
— |
— |
— |
— |
— |
Balance |
— |
0.15 |
0.010 |
0.15 |
Solder dimensions:
|
Solder grade |
Thickness, mm |
Width, mm |
Length, mm |
|||
|
Min |
Max |
Min |
Max |
Min |
Max |
|
|
PSr 2.5S |
0.1 |
5 |
50 |
200 |
100 |
400 |
Wire diameter:
|
Wire grade |
Diameter, mm |
|
|
Min |
Max |
|
|
PSr 2.5S |
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 2.5S |
11300 |
579 (306) |
577 (304) |
20.7 |
Applications:
PSr 2.5S solder is used for tinning and soldering copper, copper-nickel alloys, nickel, Kovar, nickel silver, brasses, and bronzes; for soldering and tinning copper, nickel, copper and copper-nickel alloys with silver-plated ceramics; for soldering silver-plated parts; and for soldering and tinning non-ferrous metals and steels.
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