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Refractory Bricks Materials Mullite Ceramsite

Mullite Ceramsite, is a high-grade casting sands made from high-quality bauxite, which has been produced by pelletizing and calcination.
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  • 40/70 50/100 70/140

  • SEPPE CERAMSITE


Introduction

Mullite Ceramsite, is a high-grade casting sands made from high-quality bauxite, which has been produced by pelletizing and calcination. It is characterized by low expansion coefficient, high refractoriness, good thermal and chemical stability. Due to its excellent fluidity and filling ability, it's widely used in foundry. In addition, it has good reproducibility and can be reused many times.

The Mullite Ceramsite, sintered at high temperature (1600℃), is an artificial foundry sand with extremely stable structure. It is made by firing spherical granules, having very good angle coefficient and grain shape.



Advantages:

-Large grain size, enabling sieving.

-Good collapsibility.

-High air permeability.

-High refractoriness.(1800℃)

-High resistance to crush.

-Little thermal expansion.

-Excellent in fluidity and filling effciency owing to being spherical.

Typical Chemical Composition(%)
Item Al2O3 SiO2 Fe2O3 TiO2 CaO Mgo Other
MC 66.0 31.0 1.2 2.0 0.3 0.3 0.2
Typical Particle Distribution(%)
Product Mesh 30 40 50 70 100 140 200 PAN
μm 600 425 300 212 150 106 75 PAN
MC65 - 2.2 19.1 33.7 27.2 15.3 2.3 0.2
Typical Physical Property
Refractoriness 1800℃
Thermal Expansion Rate ≤0.15%
Angle Coefficient ≤1.1
Bulk Density ≤1.68g/cm3
PH Value 7-8
Thermal Conductivity 5.5W/M.K(1200℃)