Solder PMC48
Designation
| Name |
The value |
| Designation GOST Cyrillic |
ПМЦ48 |
| Designation GOST Latin |
PMTs48 |
| Transliteration |
PMTs48 |
| The chemical elements |
ПCuZn48 |
Description
Solder PMC48 applies: for brazing copper alloys with a copper content of over 68%.
Note
Copper-zinc solder.
Standards
| Name |
Code |
Standards |
| Non-ferrous metals, including rare metals, and their alloys |
В51 |
GOST 23137-78, GOST 28873-90 |
Chemical composition
| Standard |
Fe |
Cu |
Zn |
Pb |
| GOST 23137-78 |
≤0.1 |
46-50 |
The rest |
≤0.5 |
Zn is the basis.
According to GOST 23137-78, according to the manufacturer's agreement with the consumer, the limits of copper content and lead content can be reduced.
Mechanical characteristics
| σB, MPa |
d5, % |
Brinell hardness number, MPa |
| Solder supplied according to GOST 23137-78 |
| ≥205.8 |
≥3 |
≥130 |
Description mechanical marks
| Name |
Description |
| σB |
Limit short-term strength |
| d5 |
Elongation after rupture |
Physical characteristics
| Temperature |
r, кг/м3 |
R, НОм · м |
a, 10-6 1/°С |
| 20 |
8200 |
4500 |
21 |
A description of the physical symbols
| Name |
Description |
| l |
Coefficient of thermal conductivity |
| R |
UD. the resistivity |
