Solder POSK50-18
Designation
| Name |
The value |
| Designation GOST Cyrillic |
ПОСК50-18 |
| Designation GOST Latin |
POCK50-18 |
| Transliteration |
POSK50-18 |
| The chemical elements |
ПSnPbCo50-18 |
Description
Solder POSK50−18 is used: for the production of ingots, round wire, round rods filled with flux tubes, powder used for brazing of parts sensitive to overheating, metalized ceramics, for step soldering capacitors.
Note
Solder tin-lead-cadmium antimony free.
Standards
| Name |
Code |
Standards |
| Non-ferrous metals, including rare metals, and their alloys |
В51 |
GOST 21930-76, GOST 21931-76, GOST 28873-90 |
| Norms of calculation and design |
В02 |
OST 107.460091.001-86 |
Chemical composition
| Standard |
S |
Ni |
Fe |
Cu |
As |
Al |
Zn |
Sn |
Sb |
Pb |
Bi |
Cd |
| GOST 21930-76 |
≤0.02 |
≤0.02 |
≤0.02 |
≤0.08 |
≤0.03 |
≤0.002 |
≤0.002 |
49-51 |
≤0.2 |
The rest |
≤0.1 |
17-19 |
Sn is the basis.
Mechanical characteristics
| σB, MPa |
d |
Brinell hardness number, MPa |
HRC |
| Pig in the state of delivery |
| ≥39.2 |
≥40 |
≥480.2 |
≥14 |
Description mechanical marks
| Name |
Description |
| σB |
Limit short-term strength |
| d |
Elongation after rupture |
| HRC |
Rockwell hardness (indenter diamond spheroconical) |
Physical characteristics
| Temperature |
r, кг/м3 |
l, Вт/(м · °С) |
R, НОм · м |
| 20 |
8800 |
5443 |
133 |
A description of the physical symbols
| Name |
Description |
| l |
Coefficient of thermal conductivity |
| С |
Specific heat |
