75-25 Alloy PLI (PLI-25)
Designation
| Name |
The value |
| Designation GOST Cyrillic |
ПлИ 75-25 |
| Designation GOST Latin |
PlI 75-25 |
| Transliteration |
PlI 75-25 |
| The chemical elements |
PtIr 75-25 |
| Name |
The value |
| Designation GOST Cyrillic |
ПлИ-25 |
| Designation GOST Latin |
PlI-25 |
| Transliteration |
PlI-25 |
| The chemical elements |
PtIr-25 |
Description
Alloy PLI 75−25 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; and discontinuous sliding contacts; medical supplies.
Note
Platinum-iridium alloy.
Standards
| Name |
Code |
Standards |
| Non-ferrous metals, including rare metals, and their alloys |
В51 |
GOST 13498-79, GOST 13498-2010 |
| Wire of non-ferrous metals and their alloys |
В74 |
GOST 18389-2014 |
| Sheets and stripes |
В53 |
GOST 24353-80, GOST 24718-81, TU 48-1-450-84 |
| Classification, nomenclature and general norms |
В50 |
GOST 6563-75 |
Chemical composition
| Standard |
Fe |
Ir |
Pt |
| GOST 13498-2010 |
≤0.04 |
24-26 |
74-76 |
Pt is the basis.
According to GOST 13498-79, GOST 13498-2010, the total content of palladium, rhodium and gold in the alloy should be ≤ 0.15%. The sum of all normalized impurities should be ≤ 0.19%.
Mechanical characteristics
| σB, MPa |
| GOST 13498-2010 |
| 685-830 |
Description mechanical marks
| Name |
Description |
| σB |
Limit short-term strength |
Physical characteristics
| Temperature |
r, кг/м3 |
| 20 |
21680 |
A description of the physical symbols
| Name |
Description |
| l |
Coefficient of thermal conductivity |
