White Aluminum Oxide HS Code 28181090, CAS No. 1344-28-1, has white color and a little higher hardness and toughness comparing with the brown one. The grinding tools made of this material are suitable for fine grinding of high carbon steel, high-speed steel and stainless steel, Abrasive powder of finer grit size, can also be used for precision casting and high-grade refractory.
White Aluminum Oxide is made from industrial alumina powder, which is smelted in an electric arc furnace at a temperature of over 2000°C and cooled and crystallized to obtain White Aluminum Oxide grit. White Aluminum Oxide and industrial alumina powder also contain alumina, so why do we need to do this extra work for smelting?
This is because the many excellent characteristics of White Aluminum Oxide come from its α-Al2O3 crystals, while the alumina content of industrial alumina powder is only about 98%, which not only contains other impurities, but also contains Al2O3 isomers, which can significantly reduce the various properties of corundum materials. Therefore, it is necessary to remove impurities by melting, purify the alumina content, and form α-Al2O3 crystals by re-crystallization.
White Aluminum Oxide F30 Mesh Basic Indicators:
| Molecular Formula | Al2O3 |
| Appearance | White powder |
| CAS No. | 1344-28-1 |
| HS Code | 28181090 |
White Aluminum Oxide F30 Mesh Chemical Composition:
| Aluminum Oxide(Al2O3) | 99.5%min |
| Iron Oxide(Fe2O3) | 0.15%max |
| Titanium Oxide(TiO2) | 0.4%max |
| Silicon Oxide(SiO2) | 0.15%max |
White Aluminum Oxide F30 Mesh Physical Properties:
| Color | White |
| Grain Shape | Angular |
| Mosh Hardness | 9 |
| Melting Point | 2250ºC |
| True Gravity | 3.96g/cm3 |
| Bulk Density | 1.75g/cm3-2.1g/cm3 |
White Aluminum Oxide F30 Mesh Particle Size Distribution(PSD)
| F030 | +1000um | 0 | +710um | ≤25% | +600um | ≥45% | +600+500um | ≥65% | -425um | ≤3% |
White Aluminum Oxide Application Area:
1.Metal sandblasting surface treatment: Removing the oxide layer of metal, stainless steel, aluminum alloy, tungsten molybdenum, copper products and other materials. Abrasive sandblasting to remove rust. White aluminum oxide grain has strong grinding ability and high efficiency. It can be recycled and will not leave residues on the surface of the workpiece. White aluminum oxide grain does not contain iron, sulfur, chlorine and other elements. It can be used in dentistry, food, medical equipment, aerospace and other fields : Surface treatment before spraying for spraying, painting, supersonic thermal spraying, etc., to increase the unevenness of the surface of the material and enhance the holding power of the sprayed material. B-Prepare the surface treatment before painting the back panels of mobile phones and laptops. ii.-Surface treatment before metal spray welding and titanium plating, such as sandblasting on the surface before brazing of super-hard grinding wheel and cemented carbide.
2.Surface treatment of glass and non-metallic materials: Colored glass, glass products, ceramic products, bamboo chips, wood products, composite non-metallic materials and other materials such as sandblasting, matting, polishing, matte treatment, etc. Rubber materials such as printing rubber rollers, rubber molds, PU materials, acrylic sheets, plastics and other materials are surface-etched.
3. Semiconductor industry:
White aluminum oxide used for surface treatment of aluminum alloy semiconductor components, surface treatment and sandblasting before vacuum sputtering; removal of impurities on the back of wafers.
4. Mold processing industry:
White aluminum oxide blasting media for surface treatment of metal molds, forged steel molds, forged aluminum molds, mold steel, carbon steel, and mold processing industries such as matte surface treatment after mold biting. For example, wire cutting molds, glass molds, tire molds, conductive rubber molds, shoe molds, bakelite molds, electroplating molds, button molds.
Packing and storage
Packing: Double coated plastic woven / paper bag, net weight 25kg.
Big bag packing, net weight 1000kg / 1250kg per clients’ request.
Storage: Dry, ventilated, moisture proof.
Delivery
1. The sample will be send by International expresses FEDEX/DHL/UPS/TNT.
2. Full container Load(FCL): By vessel Or International Railway Transportation
3. Less Than Container Load(LCL): By vessel or By air
Payment
1. Payment: T/T, Western Union, LC, Paypal or negotiations to solve.
2. MOQ: Usually 1Tons
3. Quality Warranty: 1 years
After Sales Service:
1).We are very glad that customer give us some suggestion for price and products.
2).If any question, please let us know it by E-mail or Telephone at the first time. We can deal with them for you in time.
