Plrd alloy 90-10 (Plrd-10; PR-10)
Designation
| Name |
The value |
| Designation GOST Cyrillic |
ПлРд 90-10 |
| Designation GOST Latin |
PlPd 90-10 |
| Transliteration |
PlRd 90-10 |
| The chemical elements |
PtHgд 90-10 |
| Name |
The value |
| Designation GOST Cyrillic |
ПлРд-10 |
| Designation GOST Latin |
PlPd-10 |
| Transliteration |
PlRd-10 |
| The chemical elements |
PtHgд-10 |
| Name |
The value |
| Designation GOST Cyrillic |
ПР-10 |
| Designation GOST Latin |
PP-10 |
| Transliteration |
PR-10 |
| The chemical elements |
ПHg-10 |
Description
Plrd 90−10 alloy used: for the manufacture of semi-finished products (sheets, tapes, strips, foils, wire, pipes, profiles, forgings) by hot or cold deformation used in instrument and apparatus building; thermocouples; laboratory glassware; hardware; glass vessels; mesh woven wire and smooth twill weave, used in chemical industry and scientific purposes; thermoelectrodes of thermoelectrical transducers.
Note
Platinum-rhodium alloy.
Standards
| Name |
Code |
Standards |
| Wire of non-ferrous metals and their alloys |
В74 |
GOST 10821-2007, GOST 18389-2014 |
| Non-ferrous metals, including rare metals, and their alloys |
В51 |
GOST 13498-79, GOST 13498-2010 |
| Sheets and stripes |
В53 |
GOST 24353-80, GOST 24718-81 |
| Classification, nomenclature and general norms |
В50 |
GOST 6563-75 |
| Metal nets |
В76 |
TU 48-1-112-85 |
Chemical composition
| Standard |
Fe |
Rh |
Pt |
| GOST 10821-2007 |
- |
10 |
90 |
| GOST 13498-79 |
≤0.04 |
9.7-10.3 |
89.7-90.3 |
Pt is the basis.
According to GOST 13498-79, GOST 13498-2010, the total content of palladium, iridium, and gold in the alloy should be ≤ 0.15%. The sum of all the standard impurities (palladium, iridium, and gold, as well as silicon, lead, antimony and zinc) should be ≤ 0.19%.
According to GOST 10821-2007 the chemical composition is given for the alloy grade PR-10. The chemical composition indicates the nominal mass fraction of the components. As starting materials, platinum and rhodium are used with a mass fraction of the main component of at least 99.95% in accordance with GOST 31290 and GOST 12342.
Mechanical characteristics
| σB, MPa |
d |
| GOST 13498-2010 |
| 290-390 |
- |
| Wire in the delivery state according to GOST 10821-2007 |
| ≥314 |
- |
| ≥118 |
≥15 |
| ≥39 |
≥12 |
Description mechanical marks
| Name |
Description |
| σB |
Limit short-term strength |
| d |
Elongation after rupture |
Physical characteristics
| Temperature |
r, кг/м3 |
R, НОм · м |
| 20 |
20000 |
200 |
A description of the physical symbols
| Name |
Description |
| l |
Coefficient of thermal conductivity |
| С |
Specific heat |
Technological properties
| Name |
The value |
| Operating temperature |
Composed of a thermoelectric transducer together with the platinum brand PLT operating temperature range is 0 to 1300 °C. maximum temperature for short-term use in 1600 °C. |
