Solder PSR 25
Designation
| Name |
The value |
| Designation GOST Cyrillic |
ПСр 25 |
| Designation GOST Latin |
PCp 25 |
| Transliteration |
PSr 25 |
| The chemical elements |
ПAg 25 |
Description
The solder 25 RPS is applied: for tin plating and soldering of copper, copper and copper-Nickel alloys, Nickel, Kovar, Nickel silver, brass and bronze; brazing steel with copper, Nickel, copper and copper-Nickel alloys; soldering and tinning of jewelry.
Standards
| Name |
Code |
Standards |
| Non-ferrous metals, including rare metals, and their alloys |
В51 |
GOST 19738-74 |
| Sheets and stripes |
В53 |
GOST 19739-74 |
Chemical composition
| Standard |
Fe |
Cu |
Pb |
Bi |
Zr |
Ag |
| GOST 19738-74 |
≤0.1 |
40-41 |
≤0.05 |
≤0.005 |
The rest |
24.7-25.3 |
According to GOST 19738-74 the sum of the impurities to be determined should be ≤ 0.15%.
Physical characteristics
| Temperature |
r, кг/м3 |
R, НОм · м |
| 20 |
8700 |
77 |
A description of the physical symbols
| Name |
Description |
| r |
Density |
| R |
UD. the resistivity |
