The Alloy PDV-20 (PDV 80-20)
Designation
| Name |
The value |
| Designation GOST Cyrillic |
ПдВ-20 |
| Designation GOST Latin |
PdB-20 |
| Transliteration |
PdV-20 |
| The chemical elements |
PdВ-20 |
| Name |
The value |
| Designation GOST Cyrillic |
ПдВ 80-20 |
| Designation GOST Latin |
PdB 80-20 |
| Transliteration |
PdV 80-20 |
| The chemical elements |
PdВ 80-20 |
Description
The alloy PDV-20 is used: for production of wire, used as resistive material in electric and electronic industry with operating temperatures from minus 60 to plus 150 °C.
Note
Palladium-tungsten alloy.
Standards
| Name |
Code |
Standards |
| Wire of non-ferrous metals and their alloys |
В74 |
GOST 26469-85 |
Chemical composition
| Standard |
Fe |
W |
Pd |
| GOST 26469-85 |
≤0.1 |
18-20 |
80-82 |
Pd is the basis.
According to GOST 26469-85 the chemical composition is given for the alloy of the brand ПДВ-20. The total mass fraction of impurities (platinum, rhodium, iridium and gold) is not more than 0.20%.
Mechanical characteristics
| Section, mm |
σB, MPa |
| Wire in the delivery state according to GOST 26469-85 |
| ≤0.1 |
765-1030 |
| 0.1 |
765-981 |
| 0.02-0.16 |
≥1079 |
Description mechanical marks
| Name |
Description |
| Section |
Section |
| σB |
Limit short-term strength |
Physical characteristics
| Temperature |
R, НОм · м |
| 20 |
850-1100 |
A description of the physical symbols
| Name |
Description |
| Е |
The normal elasticity modulus |
| l |
Coefficient of thermal conductivity |
Technological properties
| Name |
The value |
| Corrosion resistance |
The alloy is resistant to aggressive environments as well as precious metals. |
| Operating temperature |
Operating temperature from minus 60 to plus 150 °C. |
