Product Details

High Quality White Corundum 5-8mm For Refractory

White fused corundum refractory, a kind of high-grade refractory, was made from the high-quality alumina by melting above 2000 in the electric arc furnace and cooling. It is white with the main crystal phase alpha-Al2O3. The white alumina produced in titling electric arc furnace has the advantage of high bulk density and low porosity and the volume stability and thermal shock resistance can be improved.

Outstanding features are small crystal size, impact resistance, if the use of a self-grinding machine processing broken, most of the particles are spherical particles, dry clean surface, easy to bond agent.

Typical Chemical composition
Section Sand(1-3mm)	AL₂O₃	99.40%
	SiO₂	0.15%
	NA₂O	0.28%
	Fe₂O₃	0.06%
	CaO	0.03%
Fine powder(200-0#)	AL₂O₃	99.10%
	SiO₂	0.16%
	NA₂O	0.32%
	Fe₂O₃	0.08%
	CaO	0.04%
Typical physical properties
Hardness:	Mohs:9.0
Maximum service temperature:	1900 ℃
Melting Point:	2250 ℃
Specific Gravity:	3.95g/cm3
Volume density	3.6g/cm3
Bulk density(LPD):	1.55-1.95 g/cm3
Color:	White
Particle shape:	Angular
AVAILABLE SIZES
Section Sand	0-1mm,1-3mm,3-5mm,5-8mm
Fine powder	200#-0 320#-0

Al2O3 white fused alumina compound refractory material is a optimal refractory material to make refractory bricks in ladles and fluidized bed furnaces in casting and foundry industries.

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