Alumina Bubble Brick is a kind of lightweight refractories which can resist high temperature and save energe very well.the alumina bubble brick has good stability performance under different kinds of service environment,especialy is suitable for high temperature furnace with 1800 degreeC
Specification for Alumina Bubble Brick:
Al2O3%>= 95 95 99
SiO2%<= 4.7 4.7 /
Fe2O3%<= 0.3 0.3 /
Bulk Density g/cm3<= 1.1 1.3 1.5
Cold Compress Strength Mpa 18 20 24
Refractoriness Under Load ℃(0.2Mpa,0.6%) 1650 1650 1750
Thermal Resistance times(1000℃,air cooling) 20 20 18
Long time service temperature ℃ 1700 1700 1760
Specification for Alumina Bubble Brick:
Al2O3%>= 95 95 99
SiO2%<= 4.7 4.7 /
Fe2O3%<= 0.3 0.3 /
Bulk Density g/cm3<= 1.1 1.3 1.5
Cold Compress Strength Mpa 18 20 24
Refractoriness Under Load ℃(0.2Mpa,0.6%) 1650 1650 1750
Thermal Resistance times(1000℃,air cooling) 20 20 18
Long time service temperature ℃ 1700 1700 1760

