Abrasive Grade White Fused Alumina for Blasting and Polishing
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.
White Fused Alumina(WA),also called White Fused Aluminium Oxide, named by its white color, belongs to the electro fused artificial corundum group and is an important mineral used widely for refractory bricks,refractory castables,pre-cast refractory shapes,other unshaped refractory products,ceramic shapes,metal&ceramic surface preparation,grinding wheels,sandpapers,sanding belts,sandblasting media,lapping and polishing. It's obtained from reduced fusion of high purity calcined alumina in electric arc furnaces. Calcined alumina is the most important material in aluminium making industry. After the fusion process, the materials become liquid, then cooled down and crushed into different sizes for different applications. Magnetic contents are removed and materials are reshaped by relevant equipments, and then sieved into standard sizes(FEPA,JIS,ANSI) of standard particle distribution. It is characterized by high purity (Al2O3 content≥99%), great self-sharpening, acid and alkali resistance, high temperature resistance and stable thermal performance, which make it to be prefect raw material for all kinds of abrasive tools, including grinding high carbon steel, high speed steel, stainless steel and other fine-grained abrasives, it also can be used for precision casting and high-refractory materials.
White Fused Alumina is a hard, chemically stable and relevantly fragile material with high alumina content, low impurity and stability in high temperatures. It has durable abrasives ability, high fireproof and refractory characters, making it an very important raw material in refractory, bonded abrasives and coated abrasives industries. Similar materials we make are Brown Fused Alumina.
Specifications of white fused alumina:
| white fused aluminum/white corundum/WA |
| Range of grit sizes |
content |
| |
Al2O3 |
Na2O |
Fe2O3 |
SiO2 |
| F8-F100 |
99.59min |
0.20max |
0.03max |
0.04max |
| F120-F240 |
99.53min |
0.22max |
0.03max |
0.04max |
| F320-F1200 |
99.50min |
0.24max |
0.04max |
0.05max |
| Color |
White |
Al2O3 |
99.54% |
| Shape |
Angular grain shape |
Na2O |
0.23% |
| Crystal Form |
Alpha alumina |
SiO2 |
0.06% |
| Specific Gravity |
3.95 |
Fe2O3 |
0.06% |
| Hardness |
2150 Knoop scale |
Magnetic Material |
0.0025% |
Applications of white fused alumina:
- Resin boned abrasives;
- Abrasive tools;
- Lapping and polishing;
- Precision casting;
- Advanced refractory material
Packaging & Shipping
Package:25kg/50kg a bag ,or according your requirement.
Delivery:5-7days after place order.
Our Services
Why Choose Us?
1. 24 hours online service.
2.10 years of production and export experience.
3.Free samples.
4.Professional testing report before make order.
5.Professional staff to help you solve the problem on the product.
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