Product Details

1600C 1700C 1800C High Alumina Light Weight Bricks

Product Details

1.Description of Product

Bubble alumina brick is based on the material of alumina bubble and alumina powder, add other binder, through being sintered in the temperature of 1700 °C,

then can be made.

It is one kind of ultra high temperature material and energy saving heat preservation material.

2.Picture of Product

3.Parameter of Product High Alumina Light Weight Bricks

Item	alumina bubble brick
	85 type	90type	99type
Max temperature	1680	1700	1800
Al2O3 %	>85	>90	>99
SiO2 %	<13	<8	<0.2
Fe2O3 %	<0.2	<0.2	<0.2
Bulk density g/cm3	1.4-1.7	1.4-1.7	1.4-1.7
Cold crushing strength Mpa	>12	>10	>9
Reheating linear change % (1600C x3h)	±0.3	±0.3	±0.3
Thermal expansion coefficient x10 -6 (room temp.-1300C)	~7.8	~8.0	~8.6
Thermal w/(m.k) conductivity(Average 800C)	<0.8	<1.3	<1.5