Designation
Name |
The value |
Designation GOST Cyrillic |
ПМЦ48 |
Designation GOST Latin |
PMTs48 |
Transliteration |
PMTs48 |
By 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, and their alloys |
В51 |
GOST 23137-78, GOST 28873-90 |
Chemical composition
Standard |
Fe |
Cu |
Zn |
Pb |
GOST 23137-78 |
≤0.1 |
46-50 |
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 properties
σU, MPa |
d5, % |
HB, MPa |
Solder supplied according to GOST 23137-78 |
≥205.8 |
≥3 |
≥130 |
Description mechanical marks
Name |
Description |
σU |
Limit short-term strength |
d5 |
Elongation after rupture |
HB |
Brinell hardness number |
Physical characteristics
Temperature |
r, kg/m3 |
R, Mr. · m |
a, 10-6 1/°C |
20 |
8200 |
4500 |
21 |
A description of the physical symbols
Name |
Description |
l |
Coefficient of thermal conductivity |
R |
UD. the resistivity |