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AC2323 Alumina Foam Filter, Aluminum Oxide Foam Filter

  • Catalog No. AC2323
  • Size 7", 9", 12", 15", 17", 20", 23"
  • Compositions Al2O3 85%
  • Working Temperature ≤1200°C
  • Pores Per Inch 10-60

Alumina Foam Filter Description

Alumina Foam Filter is mainly for filtration of aluminum and aluminum alloys in foundries and cast houses. With its excellent resistance to attack and corrosion from molten aluminum, it can effectively remove inclusions, reduce trapped gas, and provides laminar flow, and then the filtered metal is significantly cleaner. Cleaner metal results in higher-quality castings, less scrap, and fewer inclusion defects, all of which contribute to bottom-line profit.

Alumina Foam Filter Specifications 

Physical Properties

Working Temperature ≤1200°C
Porosity 80~90%
Compression Strength
(Room Temperature)
Volume Density ≤0.5g/cm3
Thermal Shock Resistance 800°C---room temperature 5 times
Application non-ferrous and alumina alloys,
high temperature gas filter,
chemical fillings and catalysis carrier etc.


Chemical Composition

Al2O3 SiC SiO2 ZrO2 Others
85 % approx --- 6% approx --- 9% approx


Alumina Foam Filter Applications

Alumina foam filters can be used in the following applications:
- Molten aluminum
- Copper-based alloys
- Ferrous metals including grey
- Ductile and steel alloy

Related Documents
Alumina Ceramic Materials Brochure
Technical brochure for Alumina Ceramic Materials, all grades. Revision March 2023.
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