Product Overview

CAS Number: 1344-28-1 EC Number: 215-691-6
Substance Name: Aluminium Oxide Mol. formula: Al2O3
CAS Number: 1344-28-1
EC Number: 215-691-6
Substance Name: Aluminium Oxide
Mol. formula: Al 2O3

CALCINED ALUMINA is made from industrial alumina that is calcined under an appropriate temperature. Our flexible production process allows us to expand a large portfolio including different sizes and chemical contents products.

CALCINED ALUMINA as a kind of raw material has stable crystal, high purity, high electrical resistivity and heat conduction, good filling performance.

CALCINED ALUMINA as a refractory matrix improves the performance of fire resistance, abrasion resistance, thermal shock resistance, mechanical strength.

Grades Available

CA3S, CA4S, CA5S, CA3, CA4, CA5. Various more grades are available on request.

Download Datasheet

Information containing adherence to health and safety, handling and storage, and transportation standards, among others details, are included in the form of datasheets (available both in English and German)


Calcined alumina is a combination of properties that makes it useful in abrasives, glass, porcelains, spark plugs and electrical insulators. However, the greatest quantity of calcined alumina is used to obtain aluminium.

Calcined alumina is widely used in refractory castables, nozzles, corundum bricks, gunning mixes, spark plug, electrical components, ceramics etc.

Tabular alumina has high purity and good thermal stability.

Tabular alumina is an electrical insulator.

Tabular alumina has high hardness and good wear resistance.

Tabular alumina can be used for polishing and grinding.


25kg paper/plastic small bags

1.0/1.2/1.25/1.35MT Big Bags

Small bags inside big bags

Big bags / small bags on pallet

In bulk

Sizes Availables

0-0.2mm, 0-0.5mm, 0-1mm, 1-3mm, 3-5mm, 5-10mm

3/6mesh, 6/10mesh, 6/14mesh, 8/14mesh, 14/28mesh, 28/48mesh, -48mesh

-200mesh, -230mesh, -325mesh

Other sizes also offered as per specific requirements

Seamless sourcing and shipping of industrial minerals with highest standards of quality, service, and reliability.

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