White Corundum F46 Grit

White Corundum 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 Corundum HS Code 28181090, CAS No. 1344-28-1, 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 Corundum grit. White Corundum 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 Corundum 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 Corundum F46 Grit Basic Indicators:

Molecular FormulaAl2O3
AppearanceWhite powder
CAS No.1344-28-1
HS Code28181090

White Corundum F46 Grit 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 Corundum F46 Grit Physical Properties:

ColorWhite
Grain ShapeAngular
Mosh Hardness9
Melting Point2250ºC
True Gravity3.96g/cm3
Bulk Density1.75g/cm3-2.1g/cm3

White Corundum F46 Grit Particle Size Distribution(PSD)

F046+600um0+425um≤30%+355um≥40%355+300um≥65%-250um≤3%

All data based upon RunLong Enterprise’s standard test methods. We could supply grit size according to FEPA, JIS, ANSI, GB & P Standard.

Recommendations By Seller:

White Corundum segmental sand

It is particle size range of 0-1mm, 1-3mm, 3-5mm, 5-8mm, 100#-0, 200#-0, 320#-0, etc.  It is mainly used as shaped refractory material, unshaped refractory material and flooring sand.

White Corundum particle size sand

Also called White Corundum number sand, is mainly divided into White Fused Aluminum Oxide sand and White Corundum P sand and national standard micronized powder W number. 

White Corundum fine powder

It belongs to White Corundum section sand, the product of 0 to a certain particle size in section sand is also called fine powder, it is the product that passes the finest sieve in White Corundum section sand production line, the general models are: 100#-0, 200#-0, 320#-0, 0-1mm.

White Corundum micro powder

White Corundum micronized powder is selected from high quality White Corundum fine powder in White Corundum section sand production line, further crushed and shaped by tube mill, magnetic separation to remove iron, acid washing and moisture. 

Product Specification / Models

For Refractory
0-0.1mm 0-0.2mm 0-0.5mm 0-1mm 0.5-1mm 1-3mm 3-5mm 5-8mm 100mesh 200mesh 325mesh
Other specs are available upon request.

For Bonded & Coated Abrasives
Bonded abrasives: F24 F30 F36 F40 F46 F54 F60 F80 F100 F120 F150 F180 F220 F240 F280 F320 F360 F400 F500 F600 F800 F1000 F1200
Coated abrasives: P24 P30 P36 P40 P50 P60 P80 P100 P120 P150 P180 P220 P240 P280 P320 P360 P400 P500 P600 P800 P1000 P1200 P1500 P2000 P2500 P3000
Other specs are available upon request.

For Sandblasting & Grinding
F24 F30 F36 F40 F46 F54 F60 F80 F100 F120 F150 F180 F220 F240 F280 F320 F360 F400 F500 F600 F800 F1000 F1200
Other specs are available upon request.

For further technical data sheet, please do not hesitate to contact us.

White Corundum 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 Corundum grain has strong grinding ability and high efficiency. It can be recycled and will not leave residues on the surface of the workpiece. White Corundum 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 Corundum 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 Corundum 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 

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.

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