Iridium And 99.8
Designation
| Name |
The value |
| Designation GOST Cyrillic |
И 99,8 |
| Designation GOST Latin |
I 99,8 |
| Transliteration |
I 998 |
| The chemical elements |
Ir 99,8 |
Description
Iridium And 99.8 is used: for the manufacture of technical products for industry and research organizations in the form of wire, sheet, crucibles, discs and other products.
Note
Iridium is not soluble in acid and boiling Aqua Regia.
Standards
| Name |
Code |
Standards |
| Non-ferrous metals, including rare metals, and their alloys |
В51 |
GOST 13099-2006 |
| Sheets and stripes |
В53 |
GOST 24718-81 |
Chemical composition
| Standard |
Si |
Fe |
Pb |
Ba |
Au |
Ir |
| GOST 13099-2006 |
≤0.02 |
≤0.03 |
≤0.01 |
≤0.008 |
≤0.01 |
≥99.8 |
Ir is the basis.
According to GOST 13099-2006, the total content of platinum, palladium, rhodium and ruthenium should be ≤ 0.150%. The total amount of detectable impurities, including those listed in the table and impurities of platinum, palladium, rhodium, ruthenium, nickel, copper and aluminum ≤ 0.20%.
Mechanical characteristics
| Section, mm |
σB, MPa |
Brinell hardness number, MPa |
| Iridium GOST 13099-2006 on delivery |
|
785-1177 |
240-280 |
Description mechanical marks
| Name |
Description |
| Section |
Section |
| σB |
Limit short-term strength |
Physical characteristics
| Temperature |
r, кг/м3 |
| 20 |
22420 |
A description of the physical symbols
| Name |
Description |
| Е |
The normal elasticity modulus |
| l |
Coefficient of thermal conductivity |
Technological properties
| Name |
The value |
| Pressure treatment |
the processing pressure is maintained at 1200-1400 °C. |
