Hollow Alumina Sphere Bricks

1,Hollow Alumina Sphere Bricks
2, low thermal conductivity
3,good thermal insulation
4,good chemical stability

Hollow Alumina sphere bricks are sintered at high temperture after molding using hollow alumina sphere, corundum powder,and calcinedpowders mixed in definite proportion as raw material.Characteristic Scope of application
Physical and Chemical Indexes of Hollow Alumina Sphere Bricks Chemical composition 2O3 % ≥ 2O3 % ≤ 2 % ≤ Bulk density g/m3≤ Compressive strength at normal temperature MPa≥ Hot side 1000°C W/m.k≤