Gongtao company can make various crucibles and saggers made of high alumina, with different shapes. And we can also custom based on the requirement.
Series:
Alumina ceramic crucible
Corundum ceramic crucible
Arc alumina crucibles(high form alumina crucibles)
Cylindrical alumina ceramic crucibles
Rectangular crucibles
Special shaped crucibles
Alumina saggers
Series:
Alumina ceramic crucible
Corundum ceramic crucible
Arc alumina crucibles(high form alumina crucibles)
Cylindrical alumina ceramic crucibles
Rectangular crucibles
Special shaped crucibles
Alumina saggers
| Item | ||
| Chemical component | Al2O3 | ≥99 |
| R2O | ≤0.2 | |
| Fe2O3 | ≤0.1 | |
| SiO2 | ≤0.2 | |
| Vol.density(g/cm 2 ) | ≥3.80 | |
| Apparent Porosity(%) | <1 | |
| Bending Strength(Mpa) | >350 | |
| Compression strength (Mpa) | >12000 | |
| Permittivity ∑(1MHz) | 2 | |
| The max.operating temperature | 1800 | |