Alumina crucible is used for testing laboratory and a variety of industrial analysis. Alumina ceramic crucible and corundum crucible include: arc alumina crucible, square alumina crucible, rectangle alumina ceramic crucible, column ceramic crucible and a variety of shaped alumina ceramic crucible.

Characters of alumina crucible and corundum crucible :

1. High purity : Al2O3 ＞99%, high chemical etching resistance
2. Temperature tolerance, at 1600℃ for long term application, and at 1800℃ for short term application
3. Resistant to sudden cold and hot, un-explosive
4. High density of slip casting

Product description :

Chemical ingredient
Al2O3 ≥99
R2O ≤0.2
Fe2O3 ≤0.1
SiO2 ≤0.2

Volume density (g/cm² ≥3.80
Apparent porosity (%) ＜1
Bending strength (Mpa) ＞350
Compression strength (Mpa) ＞12000
Dielectric constant ∑（1MHz） 2
Max. service temperature （℃） 1800