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Product Details:
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| Product Name: | High Temp. White Fused Alumina 99.2% | Application: | Lapping |
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| Al2O3 Content: | 99.367% | Na2O: | 0.28% |
| Hardness: | 9 Mohs | Grade: | Industrial Grade |
| High Light: | Lapping Aluminum Oxide Granules,Angular Aluminum Oxide Granules,Lapping Alumina Abrasive |
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High Temperature Treatment with Cobaltous Oxide White Fused Alumina WFA99% for Lapping
1. White Fused Alumina Descriptions
White Fused Alumina (WFA) is obtained from the fusion of high purity calcined alumina in electric arc furnaces. WFA is raw material characterized with high hardness, yet friable with high purity, chemical stability, a high melting point, and large crystal size.
2. White Fused Alumina Characteristics
Hardness: 9 mohs min.
Grain shape: angular
Melting point: approx. 2050°C
Specific gravity: approx. 4.0 g/cm3
Bulk density: approx. 1.5 – 2.1 g/cm3
(depending on grain size)
3. White Fused Alumina Packing
1). 25 kg/bag, in bulk;
2). 25 kg/bag, 40 bags/big bag;
3). 25 kg/ bag, 40 bags/pallet;
4). According to customer's requirement
4. White Fused Alumina Applications
Precision Coating Reinforcing Agent, Precision Coated Polishing Cloth, Super Finishing Rubber Grindstone, Crystal Lapping, Super Finishing Vitrified Grindstone, Super Finishing Silicate Grindstone, Super Finishing Phenol Bond Grindstone, Soft Metals Lapping, super finishing, GaAs Lapping, precision lapping, GaP Lapping, Precision Coated Polishing Tape, Precision Coated Polishing Paper, Fine Alumina Ceramics, Filler for Heavy Electrical Machinery Parts
5. White Fused Alumina Specifications
| Items | Unit | Index | Typical | |
| Chemical composition | Al2O3 | % | 99.20min | 99.28 |
| SiO2 | % | 0.20max | 0.09 | |
| Fe2O3 | % | 0.10max | 0.06 | |
| Na2O | % | 0.40max | 0.24 | |
| Refractoriness | ℃ | 1850min | ||
| Bulk density | g/cm3 | 3.50min | ||
| Mohs hardness | --- | 9.00min | ||
| Principal crystalline phase | --- | α-Al2O3 | ||
| Refractory grade | Grain | mm | 0-50, 0-1, 1-3, 3-5, 5-8 | |
| Fines | mesh | -200, -325 | ||
| Grit (F grade and P grade) | FEPA | F8, F16, F20, F24, F30, F36, F46, F54, F60, F70, F80, F90, F100, F120, F150, F180, F220 | ||
Contact Person: Jason Chen
Tel: 86-18603794999
