Solder The AKP Is 37.5
Designation
| Name |
The value |
| Designation GOST Cyrillic |
ПСр 37,5 |
| Designation GOST Latin |
PCp 37,5 |
| Transliteration |
PSr 375 |
| The chemical elements |
ПAg 37,5 |
Description
Solder the AKP is 37.5 used: for tin plating and soldering of copper, copper and copper-Nickel alloys, Nickel, Kovar, Nickel silver, brass and bronze; soldering of copper and copper alloys high-temperature alloys and stainless steels.
Standards
| Name |
Code |
Standards |
| Non-ferrous metals, including rare metals, and their alloys |
В51 |
GOST 19738-74 |
| Sheets and stripes |
В53 |
GOST 19739-74, TU 117-1-802-93 |
| Wire of non-ferrous metals and their alloys |
В74 |
TU 117-1-303-91 |
| Tapes |
В54 |
TU 48-0714-181-88, TU 117-1-803-94 |
Chemical composition
| Standard |
Mn |
Fe |
Cu |
Zn |
Pb |
Bi |
Ag |
| GOST 19738-74 |
7.9-8.5 |
≤0.1 |
The rest |
5-6 |
≤0.05 |
≤0.005 |
37-38 |
| TU 117-1-303-91 |
7.7-8.7 |
≤0.1 |
The rest |
5-6 |
≤0.05 |
≤0.005 |
37-38 |
Cu is the basis.
According to GOST 19738-74 and TU 117-1-303-91 the sum of the impurities to be determined should be ≤ 0.15%.
According to TU 117-1-303-91, the chemical composition is given for a wire of PSr 37.5V alloy with increased requirements to surface quality, produced in vacuum.
Physical characteristics
| Temperature |
r, кг/м3 |
R, НОм · м |
| 20 |
8900 |
372 |
A description of the physical symbols
| Name |
Description |
| r |
Density |
| R |
UD. the resistivity |
Technological properties
| Name |
The value |
| Macrostructure and contamination |
On the surface of the wire on the other 117-1-303-91 not allowed films, oxides, delamination, cracks, holes, foreign inclusions. The color of a tint, a local darkening of the surface rejection sign is not. On the surface of the wire are not allowed delamination in the form of wooloowin and captured. |
| Features of production |
On the other 117-1-303-91 wire supply with the degree of deformation of 10-20%. |
