Mullite.
Mullite is an aluminium silicate ceramic that is finely porous and has a high Al2O3 content. It is renownedabove all for its excellent stability at high temperatures.
This material is widely used in the steel and glass sectors, and in numerous industrial applications, thanks to its excellent properties of resistance to thermal shocks and low thermal conductivity. Compared to alumina, mullite offers a low-cost option, with excellent properties in relation to certain applications such as, for example, in the resistance to temperature shifts.
Mullite is used in numerous industrial sectors thanks to its unique characteristics. Mullite is commonly used in the manufacture of industrial ovens, both electric and non-electric, and for the production of refractory components such as bricks and holders. In addition, mullite can be extruded to produce tubes and pressed to make moulded high-precision components.
Properties of mullite.
• Excellent resistance to thermal shocks
• Low thermal conductivity
• Excellent hot modulus of rupture
• Useable up to around 1400°C
• Dimensional stability even at high temperatures
• Low thermal conductivity
• Excellent hot modulus of rupture
• Useable up to around 1400°C
• Dimensional stability even at high temperatures
Which products can we manufacture?
Savar's mullite is used to produce numerous products:
• Refractory bricks and forms for industrial furnaces
• Insulating components for electrical and non-electrical furnaces
• Extruded tubes for thermal applications
• Alumina ferrules for tube sheets
• Pressed or extruded components for industrial thermal applications
• Honeycomb structures for heat exchangers working at high temperatures
• Insulating components for electrical and non-electrical furnaces
• Extruded tubes for thermal applications
• Alumina ferrules for tube sheets
• Pressed or extruded components for industrial thermal applications
• Honeycomb structures for heat exchangers working at high temperatures
Sectors of use.
In the metalworking industry, mullite is used for the construction of industrial furnaces and refractory components, thanks to its capacity to resist high temperatures and thermal shocks. In industrial furnaces, mullite serves as a structural ceramic, and is favoured for its thermal stability and resistance to wear. In addition, it is widely used as a support tube for electrical resistors, exploiting its properties of mechanical resistance and dimensional stability and its excellent hot modulus of rupture.
Did you know...?
Mullite is an extraordinary material that has its origins in natural crystallisation at temperatures above 1000°C, and is a stable mineral across a wide range of temperatures. Major fields of use for mullite-based ceramics are components and structures for gas-turbine engines (heating jackets, thermal protection tiles for combustors, extraction funnels), stands for high-resistance furnaces, burner tubes and heat shields.
If you're interested in our mullite products or you would like more information, please don't hesitate to get in touch. Our team is at your disposal to find the solution to best fits your needs.
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Let's make it together.
Custom materials designed and produced in response to your ideas.
Our technicians analyse every technical detail with a view to meeting your requirements fully, developing specific formulations that satisfy the various technical and performance requirements you may have.
• Refractory products based on silicon carbide, zirconium oxide or fused silica
• Advanced ceramics, oxide and non-oxide
• Advanced ceramics, oxide and non-oxide
• High-porosity ceramics
• Super-refractory products with high alumina content