white fused alumina/WA 50A

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.WA 60#3.jpgWA80#2__ 8#2__

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

2250°C

1900°C

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

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