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High Fired Alumina Spinel Brick

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Characteristics of this series products are as follow:
The brick is made from sintered special grade clay, pressed by high pressure and sintered at high temperature, with excellent spalling resistance, alkali,sodium,sulfur,chlorine and alkalic salt corrosion. Low thermal conductivity, a better and ideal choice for steel industry.

The technical specification :

  

Items


High fired alumina spinel brick
Chemical compositionAl2O3  %89

Fe2O3 %       ≤0.5
SiO2 %1.5
MgO %  ≤5.6
Bulk density g/cm3  ≥3.2
Apparent porosity %≤15
CCS Mpa          ≥120
P.L.C 1600ºC*2h %0-+1
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