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Alumina hollow spherical brick


Chemical composition(wt%)Al2O3 SiO2 Fe2O3

Key words:

Alumina hollow spherical brick

Category:

Refractory material

Details


劲旅环境

Technical indicators Alumina hollow spherical brick
LG-99 LG-90 LG-85
Chemical composition(wt%) Al2O3 ≥99 ≥90 ≥85
SiO2 ≤0.3 ≤7 ≤13
Fe2O3 ≤0.1 ≤0.1 ≤0.2
bulk density(Kg/m3 1450~1600 1450~1600 1450~1600
room temperature compressive strength(MPa) ≥15 ≥15 ≥20
Rate of change of refiring line(%) 1600℃×3h ±0.2 ±0.2 ±0.3
thermal conductivity(W/m·K) Average temperature800℃ ≤1.4 ≤1.4 ≤1.4
Maximum operating temperature(℃) ≥1800 ≥1700 ≥1600

Louzi Village, Qidu Town, Linzi District, Zibo City, Shandong Province, China

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