calcined alumina, aluminium oxide white fused alumina 1.experienced factory 2.high purity Al2O3,more than 99.4% 3.ISO9001

calcined alumina

White fused alumina is made from high quality alumina by melting above 2000°C in the electric arc furnace and then cooling. It is with high purity, great self-sharpening, acid and alkali resistance, high temperature and stable thermal performance. Its hardness is a little higher than brown fused alumina. It is with low toughness, great grinding ability, small heat and high efficiency.  It can be made to the abrasives, suitable for sandblasting and grinding high carbon steel and staining steel and other fine-grained abrasive; also be used for precision casting and high-refractory materials.

Applications:

It can be made to the abrasives, suitable for sandblasting and grinding high carbon steel and staining steel and other fine-grained abrasive; also be used for precision casting and high-refractory materials.

 

Chemical compositions		Physical properties
Items	Value of specification (%)	Items		Property
Al2O3	99.50min	Color		White
SiO2	0.05max	Bulk density		1.75-1.95g/cm3
Na2O	0.20max	Grain density		3.90g/cm3 min
Fe2O3	0.05max	hardness	Morse hardness	9
			Micro hardness	21600-22600kg/mm3

alumina