Element(ppm max) | Grade FTK-1 | Grade FTK-2 |
Ta | 46.1±0.4% | 46.1±0.4% |
Nb | 5 | 10 |
C | 10 | 20 |
Fe | 3 | 10 |
Mo | 1 | 5 |
Ni | 1 | 5 |
Cr | 1 | 5 |
Si | 40 | 50 |
W | 1 | 5 |
Mn | 1 | 1 |
Mg | 1 | 1 |
Ca | 1 | 10 |
Cu | 1 | 1 |
Note :All impurity levels are calculated based on the amount of tantalumcontained in K2TaF7. |
Element(ppm max) | Grade FTK-1 | Grade FTK-2 |
Ta | 46.1±0.4% | 46.1±0.4% |
Nb | 5 | 10 |
C | 10 | 20 |
Fe | 3 | 10 |
Mo | 1 | 5 |
Ni | 1 | 5 |
Cr | 1 | 5 |
Si | 40 | 50 |
W | 1 | 5 |
Mn | 1 | 1 |
Mg | 1 | 1 |
Ca | 1 | 10 |
Cu | 1 | 1 |
Note :All impurity levels are calculated based on the amount of tantalumcontained in K2TaF7. |