White fused alumina is made in arc furnace with high grade processed alumina as raw materials. It has higher hardness , high toughness, and also characterized by its high purity. As the abrasive materials, it is suitable for grinding high-speed, high carbon steel. Also widely used for bonded and coated abrasives, polishing, precision casting and so on.

 

 *physical property:

 

Mohs Hardness	Bulk Density	Specific Gravity	Volume Density	Melting Point	Maximum service temperature
9.0	1.75-1.95g/cm3	3.95g/cm3	3.6g/cm3	2250C	1900C

*chemical composition:

 

Al2O3	Fe2O3	Na2O	SiO2	CaO	K2O
99.5%	0.08%	0.30%	0.10%	0.03%	0.03%

 

* Usage:

1. the process of blasting TV screens

2. the cutting of silicon wafer 

3. the process of cleaning and blasting tooth model

4. Precision sand casting

5. High refractory and other ceramic additives

6. to make sandpaper & sandcloth