Type A: Clay graphite crucible for AL melting
Type B: Isostatic pressing graphite crucible
| Type of Crucible | TypeA | Type B |
| Carbon Content/% | ≥38 | ≥45 |
| Bulk Density/(g/cm3) | ≥1.70 | ≥1.85 |
| Apparent Porosity/% | ≤29 | ≤21 |
| Compression Strength/MPa | ≥20 | ≥25 |
| Refractoriness/°C | ≥1400 | ≥1400 |
