White fused alumina/WFA is a high-quality raw material, made of fused refining crystal, high purity, self-sharpening, good acid and alkali resistance, high temperature, thermal properties and stability it is slightly higher than the corundum hardness, toughness slightly lower, high purity, good self-sharpening, grinding ability, heat, high efficiency, acid corrosion, high temperature thermal stability. Made with the abrasive, for grinding high-carbon copper, high-speed steel. It has a powerful abrasive effect on the surface being blasted.
1. Does not affect the color of processed parts;
2. It can be used for sandblasting in a process where iron powder residue is strictly prohibited;
3. Plastic grade white corundum particles are very suitable for wet sandblasting and polishing and grinding operations.
Product | White Fused Alumina |
Main crystal body | Al2O3 |
Color | White |
Al2O3 | 99.55%Min |
SiO2 | 0.04%Max |
NaO2 | 0.25%Max |
Fe2O3 | 0.04%Max |
True density | 3.93g/cm3 |
Bulk density | 1.93g/cm3 |
Mohs hardness | 9 |
Micro hardness | 21600-22600kg/mm3 |
Content of magnetic substance | 0.0023%Max |
Chemical Composition Standards |
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Code and Size Range |
Chemical Composition % |
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Al2O3 | SiO2 | Fe2O3 | Na2O | |
F12——F80 | ≥99.50 | ≤0.10 | ≤0.05 | ≤0.30 |
F90——F150 | ≥99.50 | ≤0.10 | ≤0.05 | ≤0.30 |
F180——F220 | ≥99.50 | ≤0.10 | ≤0.05 | ≤0.30 |
#240—#3000 | ≥99.50 | ≤0.10 | ≤0.03 | ≤0.22 |
#4000—#12500 | ≥99.50 | ≤0.10 | ≤0.05 | ≤0.25 |
1.For precision casting and high-grade refractory.
2. For bake lining ,Catalyst carrier ,friction products
3.For pressure blasting hard abrasives;Refractory industry
4.For wet and dry blasting ,grinding,lapping and polishing media
5.For abrasive tools: grinding wheel, Lapping and polishing non-skid title;
6.For bonded and Coated abrasives ,Thermal Spraying (Plasma Spraying)
7.For lapping & Micro-Blasting applications .refractories,Ceramics and Tiles .
If you have any questions.Please feel free to contact us.