The 95-5 Alloy PLI (PLI 950-50; PLI-5)
Designation
| Name |
The value |
| Designation GOST Cyrillic |
ПлИ 95-5 |
| Designation GOST Latin |
PlI 95-5 |
| Transliteration |
PlI 95-5 |
| The chemical elements |
PtIr 95-5 |
| Name |
The value |
| Designation GOST Cyrillic |
ПлИ 950-50 |
| Designation GOST Latin |
PlI 950-50 |
| Transliteration |
PlI 950-50 |
| The chemical elements |
PtIr 950-50 |
| Name |
The value |
| Designation GOST Cyrillic |
ПлИ-5 |
| Designation GOST Latin |
PlI-5 |
| Transliteration |
PlI-5 |
| The chemical elements |
PtIr-5 |
Description
PLI 95−5 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; and discontinuous sliding contacts; medical supplies; jewellery for personal adornment (necklaces, narrow and wide bracelets, original hair accessories, filigree earrings, brooches, pendants, wedding rings, rings, chains).
Note
Platinum-iridium alloy.
Standards
| Name |
Code |
Standards |
| Non-ferrous metals, including rare metals, and their alloys |
В51 |
GOST 13498-79, GOST 30649-99, GOST Р 51152-98, 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 |
| Classification, nomenclature and general norms |
В50 |
GOST 6563-75 |
Chemical composition
| Standard |
Si |
Fe |
Pb |
Au |
Ir |
Pt |
| GOST 30649-99 |
≤0.009 |
≤0.04 |
≤0.015 |
≤0.05 |
The rest |
95-95 |
| GOST 13498-79 |
- |
≤0.04 |
- |
- |
4.7-5.3 |
94.7-95.3 |
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%.
According to GOST 30649-99 the chemical composition is given for the jewelry alloy UPLI-5 (Yupli 950-50). The sum of the normalized impurities is ≤ 0.110%.
Mechanical characteristics
| σB, MPa |
| GOST 13498-2010 |
| 200-290 |
Description mechanical marks
| Name |
Description |
| σB |
Limit short-term strength |
Physical characteristics
| Temperature |
r, кг/м3 |
| 20 |
21500 |
A description of the physical symbols
| Name |
Description |
| l |
Coefficient of thermal conductivity |
Technological properties
| Name |
The value |
| Pressure treatment |
The alloy is suitable for all types of cold treatment. |
| Casting |
The alloy is suitable for all kinds of casting. |
