Description
Chemical composition:
Q/DFT001-2000 (impurity content ≤%)
| Smelting niobium (Q/DFT001-2000) | ||
| NT-1 | NT-2 | |
| Nb | – | – |
| O | 0.04 | 0.06 |
| C | 0.01 | 0.02 |
| N | 0.03 | 0.04 |
| H | 0.002 | 0.002 |
| Fe | 0.01 | 0.02 |
| Ni | 0.005 | 0.005 |
| Cr | 0.005 | 0.005 |
| Si | 0.03 | 0.05 |
| Pb | – | – |
| Ta | 0.1 | 0.2 |
| Cu | 0.003 | 0.003 |
| W | 0.003 | 0.01 |
| Mo | 0.005 | 0.01 |
| Ti | 0.005 | 0.005 |
| Zr | 0.005 | 0.005 |
| Sn | – | – |
| S | – | – |
| Al | ||
| P | ||
