Solder Possu25-2
Designation
| Name |
The value |
| Designation GOST Cyrillic |
ПОССу25-2 |
| Designation GOST Latin |
POCCu25-2 |
| Transliteration |
POSSu25-2 |
| The chemical elements |
ПSnPbSb25-2 |
Description
Solder Possu25−2 applies: for the production of ingots, round wire, round rods filled with flux tubes, powder used for tinning and soldering of refrigerating apparatus building, electric manufacturing, motor industry, for abrasive soldering.
Note
Solder tin-lead-antimony.
Standards
| Name |
Code |
Standards |
| Non-ferrous metals, including rare metals, and their alloys |
В51 |
GOST 21930-76, GOST 21931-76, GOST 28873-90 |
Chemical composition
| Standard |
S |
Ni |
Fe |
Cu |
As |
Al |
Zn |
Sn |
Sb |
Pb |
Bi |
| GOST 21930-76 |
≤0.02 |
≤0.08 |
≤0.02 |
≤0.08 |
≤0.02 |
≤0.002 |
≤0.002 |
24-26 |
1.5-2 |
The rest |
≤0.2 |
Pb is the basis.
Mechanical characteristics
| σB, MPa |
d |
kJ/m2, кДж/м2 |
| Pig in the state of delivery |
| ≥37.28 |
≥35 |
≥235.2 |
Description mechanical marks
| Name |
Description |
| σB |
Limit short-term strength |
| d |
Elongation after rupture |
| kJ/m2 |
Toughness |
Physical characteristics
| Temperature |
r, кг/м3 |
l, Вт/(м · °С) |
R, НОм · м |
| 20 |
9800 |
3768 |
185 |
A description of the physical symbols
| Name |
Description |
| l |
Coefficient of thermal conductivity |
| С |
Specific heat |
