| Model | Average Particle Size (D50) | Purity(%) | O(%) | N(%) | CF(%) | CT(%) |
| NbC-1 | -100+325mesh | >99.5 | ≤.0.3 | ≤0.05 | ≤0.10 | 11.0～11.4 |
| NbC-2 | 1.0-3.0um | >99.5 | ≤.0.5 | ≤0.05 | ≤0.10 | 11.0～11.4 |
| NbC-3 | 0.5-1.0um | >99.5 | ≤0.8 | ≤0.05 | ≤0.10 | 11.0～11.4 |
| Customized chemical composition and particle size can be made according to customer requirements. | ||||||
| Element | Max value | Real value | Element | Max value | Real value | Element | Max value | Real value |
| Al | 0.0010 | 0.0005 | Fe | 0.0500 | 0.0300 | P | 0.0010 | 0.0005 |
| As | 0.0010 | 0.0005 | K | 0.0020 | 0.0010 | Pb | 0.0003 | 0.0001 |
| Bi | 0.0003 | 0.0001 | Mg | 0.0020 | 0.0010 | S | 0.0010 | 0.0005 |
| Ca | 0.0015 | 0.0006 | Mn | 0.0010 | 0.0005 | Sb | 0.0020 | 0.0010 |
| Cd | 0.0005 | 0.0001 | Mo | 0.0030 | 0.0015 | Si | 0.0050 | 0.0030 |
| Co | 0.0005 | 0.0001 | Na | 0.0020 | 0.0005 | Sn | 0.0003 | 0.0001 |
| Cr | 0.0050 | 0.0020 | Ni | 0.0050 | 0.0030 | Ti | 0.0050 | 0.0020 |
| Cu | 0.0003 | 0.0001 | Ta | 0.0030 | 0.0010 | V | 0.0050 | 0.0010 |
