The high alumina brick feature:
high alumina bricks for steel making is made from special grade of bauxite as main raw material, added with little amount of white fused alumina and a alumina powder, shaped by high pressure and sintered at high temperature. The main mineral constituent includes mullite and corundum, with excellent high temperature physical performance and chemical resistance.
|Items||High alumina brick|
|Refractiriness under load,0.2Mpa||1450||1480||1530||1600|
|Apparent porosity,% ≤||20-23||20-23||20-22||18-20|
|Cold crushing strength,Mpa ≥||45||50||60||70|