High Alumina Brick 75% Specification: 

Brand FR75
Al2O3(%) ≥75
Fe2o3(%) ≤2.0
Refractoriness 1770
refractoriness under load 0.2mpa() 1520
Porosity(%) 22
Bulk density(g/cm3) ≥2.7
Cold crushing strength (mpa) ≥60
Thermal expansion at 1000(%) ≤0.5

   

High Alumina Brick 85% Specification:

Brand FR85
Al2O3(%) ≥85
Fe2o3(%) ≤1.8
Refractoriness 1830
refractoriness under load 0.2mpa() 1550
Porosity(%) 22
Bulk density(g/cm3) ≥2.8
Cold crushing strength (mpa) ≥70
Thermal expansion at 1000(%) ≤0.5

 

Other TDS for high alumina bricks:

TDS 60% high alumina brick