White corundum sand 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 Properties
White Fused Alumina Characters
High Alumina
White Fused Alumina has a Aluminium Oixde(Al2O3) content of more than 99%. The high alumina content is ensured from its raw material which is calcined alumina.The high content of Al2O3 makes it perform well in fireproof and refractory applications.
Little Impurities
White Fused Alumina has very little impurities, usually less than 0.4% Na2O, less than 0.15 SiO2 and less than 0.15 Fe2O3. It is chemically stable and little impurities make it ideal for refractory uses.
High Hardness
The high content of Al2O3 (Aluminum Oxide) makes it to be with very high hardness (Mosh Hardness≥9) and It's usually utilized for grinding ,cutting, lapping, sandblasting, polishing, surface preparing and also for coated abrasive application, including sandpaper and sand belt.It's not easy to break and good for abrasives. In abrasives industries, it is used for cutting wheels, grinding wheels etc, also used for coated abrasives applications like sandpapers. It's white color and little impurities also make it excellent grinding and sandblasting media for preparing and polishing surface of metal, ceramic products etc. WA fines is also an good material for polishing and water jetting in electronics industry.
Sharp Edges
White Fused Alumina is a crystal mineral with sharp edges and widely used in sandblasting,cutting and grinding abrasives.
Physical Specifications |
| Color | White |
| Grain Shape | Angular |
| Mosh Hardness | 9 |
| Melting Point | 2250ºC |
| True Gravity | 3.96g/cm3 |
| Bulk Density | 1.75g/cm3-2.1g/cm3 |
Chemical Specifications |
| Aluminium Oxide(Al2O3) | 99%min |
| Iron Oxide(Fe2O3) | 0.15%max |
| Disodium Oxide(TiO2) | 0.4%max |
| Silicon Oxide(SiO2) | 0.15%max |
White Fused Alumina Standard Sizes & Applications
Refractory Bricks,Fireproof Products,Pre-Casting Refractory,Refractory Mortars,Refractory Castables:
0-0.2mm,0-0.5mm,0.5-1mm,1-3mm,3-5mm,5-8mm,100mesh,200mesh,325mesh
White Fused Alumina for refractories 0-1-3-5-10mm
Physical Analysis | Grit# | MaximumSize | Big Size | Basic Size | Mixed Size | Small Size |
|
| 0-1mm | 0 | 7 |
|
| 3 |
|
| 1-3mm | 0 | 5 |
|
| 3 |
|
| 3-5mm | 0 | 6 |
|
| 2.5 |
|
| 5-10mm | 0 | 5 |
|
| 4 |
|
| Chemical Analysis |
| SiO2 | AL2O3 | Fe2O3 | Na2O |
|
|
| 0-1mm | 0.06 | 99.56 | 0.05 | 0.28 |
|
|
| 1-3mm | 0.05 | 99.51 | 0.03 | 0.30 |
|
|
| 3-5mm | 0.07 | 99.60 | 0.02 | 0.23 |
|
|
| 5-10mm | 0.03 |
Packing:
Big Bag of 1 Ton, 1.2 Tons or 1.3 Tons
25kg Wooven Plastic Bag,40 Bags in a Big Bag
25kg Wooven Plastic Bags,40 Bags on a Wood Pallet
25kg Paper Bag,40 Bags on a Wood Pallet
We a company focusing in providing our clients in refractory and abrasives industries with quality raw materials&chemicals: Brown Fused Alumina 95% Al2O3, Vice-White Fused Alumina 97% Al2O3, White Fused Alumina for refractory and abrasives and other industrial mierals for refractory and abrasives industry. Our factory is located in Yichuan County, Hennan province, which is the manufacturing base of Brown Fused Alumina.
We focus on R&D of products to make best quality materials to supply to our customers from all parts of China, Japan, Taiwan, Korea, Europe, USA and other parts of the world. Although now 80% of our sales are from domestic market, we are growing quickly into an international company. And we are trying to make more new products and introduce them to our product line so that we can better serve our customers. With more than 15 years manufacturing and sales experience in this industry, we provide with quality materials and our ultimate service. We share with you our experience and knowledge in this industry and will work with you to grow and irmprove our products and service as far as possible.
Main Products:
Refractory Mineral, Abrasives Mineral, Grinding Media. FEPA, GB, JIS standard. Brown Fused Alumina(Brown Fused Aluminum Oxide, Brown Corundum) for refractory and abrasives(0-1mm, 1-3mm, 3-5mm, 5-8mm, 8-12mm, F12-F220, Fines, P12-P220 for coated abrasives, High Temperature and Medium Calcined Brown Fused Alumina; Rolling Machine, Ball Milled, Barmarc Milled, Fixed Furnace, Tilting Furnace), Vice White Fused Alumina with 97% Al2O3 for refractory(0-1mm, 1-3mm, 3-5mm, 5-8mm, 8-12mm), White Fused Alumina(White Fused Aluminum Oxide, White Corundum) for refractory and abrasives(0-1mm, 1-3mm, 3-5mm, 5-8mm, 8-12mm, F12-F220), Pink Fused Alumina, Zirconia Fused Alumina(Zirconium Fused Alumina), Black Fused Alumina, Green Silicon Carbide, Black Silicon Carbide, Glass Beads, Steel Shot, Corindon Marron, Corindon Blanco, Korund, Corundum, Alumino de Oxide, Abrasivos Refractories etc.
