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Name Alumina bubble products
Ingredient bubble alumina，corundum powder，Calcined powder as raw material etc
Max service temperature 1800℃
Advantages 1 high temperature resistance
2 low thermal conductivity, good thermal insulation
3 low bulk density
4excellent resistance to acids and alkalis corrosion
Size and specifications 230x114x65mm
The size, density, chemical composition can be customized.
Technical Data
Name / Indexes/ Item MLQ-84 MLQ-90 LQ-1.2 LQ-1.5 LQ-1.7
Al2O3％≥ 84 90 98.5 98.5 98.5
Fe2O3％≥ 0.8 0.5 0.3 0.3 0.3
SiO2％≤ 15 9 1.0 1.0 1.0
Bulk Density
(g/cm3 ≥) 1.5 1.5 1.2 1.5 1.7
Compressive
strength
at normal temperature
(MPa≥) 16 15 3 12 15
Porosity % ≥ 58 60 62 60 58
Refractoriness under load at0.1Mpa
KD °C≥ 1650 1700 1700 1700 1700
Refractoriness
(°C)≥ 1800 1800 1800 1800 1800
Hot side 1000°C
W/m.k ≤ 1.2 1.5 0.95 1.05 1.15
bubble alumina insulating brick