Alumina – 99.65 % Crushable


Mechanical, Thermal and Physical Properties

Material Grade 99.65% Crushable Alumina Oxide (S-669)
Chemical Analysis
MgO    –
AL2O3, % 99.65 min
SiO2, % .08 max
CaO, % .08 max
Fe2O3, % .10 max
B+Cd, ppm 30 max
Mechanical Properties
Porosity, % MIN 17
Bulk Density, gm/cc 2.20
Flexural Strength, psi 5,000-25,000
Compressive Strength, psi 7,000-30,000
Thermal Properties
Thermal Expansion 25O-700O  inch/inch/CX10-6 7.8
 Max Operating Temp., OC

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