High Alumina Brick 42% Specification: 

Brand FR42
Al2O3(%) ≥42
Fe2o3(%) ≤2.0
Refractoriness 1730
refractoriness under load 0.2mpa() 1300
Porosity(%) 22
Bulk density(g/cm3) ≥2.1
Cold crushing strength (mpa) ≥25
Linear Change [1500×2h]%

+0.1 -0.4 

 

Other TDS for high alumina bricks: 

TDS 75% and 85% high alumina brick

TDS 60% High alumina Brick