Our main raw material of Calcined Mullite are manufactured alumina and kaolin. After milled, the raw powder pressed to be body, and then calcined through rotary kiln or tunnel kiln.
OREWORLDMT Calcined Mullite Application
We manufacture OREWORLD® Calcined Mullite which is high quality refractory raw material, with features finely expansion, good Thermal shock resistance, high refractoriness under load, low creep, high strength and chemical cautery resistance.
Specification of OREWORLDMT Calcined Mullite
Brand |
Grade |
Chemical content |
Bulk density
/ g / cm3 |
Apparent porosity
/ % |
Refractoriness
/ ℃ |
Al2O3 |
TiO2 |
Fe2O3 |
Na2O+K2O |
M73 |
A1 quality
A2 quality
A3 quality |
>73~90
>73~90
>73~90 |
<2.0 |
<0.6
<0.8
<1.0 |
<0.2
<0.3
<0.3 |
≥2.85
≥2.80
≥2.75 |
<3
<5
<10 |
≥1790 |
M70 |
A1 quality
A2 quality
A3 quality |
>70~73
>70~73
>70~73 |
<2.0 |
<0.6
<0.8
<1.0 |
<0.2
<0.3
<0.3 |
≥2.80
≥2.75
≥2.70 |
<3
<5
<10 |
≥1790 |
M65 |
A1 quality
A2 quality
A3 quality |
65~70
65~70
65~70 |
<2.0 |
<0.6
<0.8
<1.0 |
<0.2
<0.3
<0.3 |
≥2.75
≥2.70
≥2.65 |
<3
<5
<10 |
≥1790 |
|
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