Refractories – Alumina Range

High-Purity Alumina Refractories for High-Temperature Industrial Applications

Dense, Insulating and Monolithic Alumina Refractories for Demanding High-Temperature Environments

Our range of refractories includes a comprehensive selection of high-purity alumina, high alumina-mullite, mullite and zirconia refractory products for use in high-temperature kilns and furnaces. The range includes fired and shaped refractories, insulating products and castables, with solutions available for applications including muffles, supports, setters, hearth plates, customised shapes and kiln furniture.

The ALFRAX range is available in both fired shaped products and castable grades, from alumina bubble-based insulating materials through to sintered and dense alumina products. Depending on the grade, the materials are capable of operating at temperatures up to 1800°C, providing solutions for demanding thermal environments across industries including Chemical, Heat Treatment, Nuclear and Pyrometry.

Why Choose ALFRAX Alumina Refractories?

The ALFRAX range provides a combination of high purity, temperature resistance, strength and thermal insulation, allowing the appropriate refractory grade to be selected according to the operating conditions and application.

Available formulations include dense and insulating alumina products, as well as monolithic castables for applications requiring shaped or cast refractory protection. The range also includes products designed for environments where hydrogen atmospheres, high temperatures and demanding mechanical conditions are present.

ALFRAX 101 – Dense, high-strength fused alumina refractory for demanding high-temperature applications up to 1800°C.
ALFRAX B101 – High-purity alumina bubble insulating refractory for high-temperature and hydrogen atmosphere applications.
ALFRAX B202 – High-strength alumina bubble insulating refractory for high-temperature, low-heat-capacity applications.
ALFRAX B303 – High-purity semi-insulating alumina refractory for high-temperature and hydrogen atmosphere applications.
ALFRAX 66XF – Fine tabular alumina refractory grout for filling joints and voids at temperatures up to 1800°C.
ALFRAX AFC 730 – High-purity alumina bubble insulating castable for demanding high-temperature applications.
ALFRAX AFC 740 – Dense, high-purity castable based on tabular alumina, with hydraulic set and chemical/ceramic bonding.
ALFRAX AFL 825 – Dense, high-purity monolithic castable based on alumina raw material, with hydraulic set and chemical/ceramic bond.

Typical Applications

ALFRAX alumina refractories are suitable for a range of high-temperature applications, including:

High-temperature furnaces
Industrial kilns
Hydrogen-atmosphere furnaces
Furnace supports and hearth components
Muffles
Setters and hearth plates
Kiln furniture
Backup insulation
Refractory linings
Voids and joints requiring refractory grout
Bespoke refractory shapes and components

Typical Industries

Our alumina refractory solutions are suitable for demanding applications across:

Technical Support and Specification Guidance

Selecting the correct alumina refractory depends on factors including operating temperature, atmosphere, thermal cycling, mechanical loading and whether the application requires dense, insulating, shaped or castable material.

MMES can help identify the most appropriate ALFRAX grade for your application and provide guidance on product selection, specification and installation requirements. Material and Safety Data Sheets are available on request.

Need Help Selecting an Alumina Refractory?

Looking for the right refractory material for your furnace, kiln or high-temperature application?

Speak to MMES about your operating conditions and application requirements. We can help you identify the appropriate ALFRAX alumina refractory product for your process.

Contact MMES today for technical advice and specification guidance.

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