White Fused Alumina (WFA)
White Fused Alumina Segmented Sand
| Color | White |
| Raw Material | Aluminium Oxide (Al2O3) |
| Crystal | Trigonal Crystal |
| True Density | 3.95g/cm3 |
| Bulk Density | 3.60 g/cm³ |
| Hardness (Mohs) | 9 |
| Melting Point | 2250°C |
| Particle Size | F Grit, P Grit, W Micro Powder, Segment Sand, Fine Powder |
| Applications | Surface Processing, Beautification Processing, Etching Processing, Pre-treatment Processing, Deburring Processing, Stress Relief Processing |
Product Overview:
White fused alumina is fused by alumina powder by electric arc furnace under high temperature. It has white color and little higher hardness and lower toughness comparing with brown fused alumina. The micro hard- ness of the product is 2200-2300kg/mm2. It has higher hardness and slight lower toughness comparing with brown fused alumina. It is also characterized by its high purity, acid and alkali resistance, good thermal stability. It’s the high-grade refractory materials.
Advantages： The white fused alumina produced by our company has the advantages of high purity, strong self-sharpening, strong grinding force, high efficiency, high temperature resistance and corrosion stability. Abrasive tools made of it have the advantages of sharp grinding, low heat generation rate, high grinding efficiency, and little adhesion during use.
White Fused Alumina Refractory -Segmented Sand Size：
White Fused Alumina Refractory Size:0-1mm,1-3mm,3-5mm,5-8mm Or as per specific requirements.
| Test Products | Al2O3% | Na2O% | Fe2O3% | SIO2% | Magnetic Material(%) |
|---|---|---|---|---|---|
| White fused alumina 1-3MM | ≥99 | ≦0.5 | ≦0.14 | ≦0.25 | ≦0.03 |
Application：
Abrasive white fused alumina is not only used in abrasive applications but is also a crucial material in the production of refractories due to its high melting point, thermal stability, and chemical resistance. Some of the key refractory uses include:
Kiln and Furnace Linings: WFA is used for manufacturing bricks and linings for high-temperature industrial furnaces, kilns, and reactors. Refractory Castables: White fused alumina is employed in castable refractories that are used in steelmaking and other high-temperature operations. Thermal Insulation: Due to its low thermal conductivity, WFA is also used in insulation materials that are exposed to high temperatures.
Packing:
- 25kg paper/plastic small bags
- 1.0/1.2/1.25/1.35MT Big Bags
- Small bags inside big bags
- Big bags / small bags on pallet
- In bulk
- According to the customers’ detail requirements
The composition of white corundum is mainly industrial alumina powder, its main chemical composition is aluminium trioxide (Al2O3), with a content of more than 98%.
Support customisation, you can leave your demand on the left side form. We will contact you within 24 hours.
The hardness of white corundum is very high, the Mohs hardness is 9.0
Scratches appear in the polishing process because there are large grains in the abrasive product, resulting in a poor product appearance and poor cleanliness.
是的，我厂微粉经过酸碱洗清洁度杂质含量少、水分沉淀工艺、专号专用电炉烘干，清洁度好、粒度均匀、颗粒形状好。
We have professional standard national standard particle size comparison table, which can help you to standardise the model. Secondly, you can also send us a sample, our factory has professional testing instruments to help you analyse and accurately standardize the particle size of the products you use.
