Calcined Alumina

Calcined alumina features high purity, low sodium content, excellent thermal stability, and strong wear resistance. It is widely used in refractory castables, gunning materials, coatings, and other refractory applications to improve high-temperature strength and corrosion resistance.

Item
ZTR-N20L
ZTR-N10L
ZTR-N08L
Item
Typical
Min./Max
Typical
Min./Max.
Typical
Min./Max.
Al₂O₃ (%) ≤
99.8
99.8
99.8
SiC (%) ≤
0.03
0.06
0.03
0.06
0.03
0.06
Fe₂O₃ (%) ≤
0.02
0.04
0.02
0.04
0.02
0.04
NaO (%) ≥
0.12
0.15
99.7
0.15
99.7
0.15
Loose Packed Density (g/cm³) >
0.8
0.8
0.6