Which measurement methods are applied?
Dynamic image analysis (DIA) Static light scattering (SLS, also called laser diffraction) Screen analysis Impedance method Sedimentation
White fused alumina coated abrasives P grain P180~p220
White fused alumina coated abrasives P grain P180~P220 has a more aggregative distribution than F grain, with sharpness and evenly distributive features, bringing more efficiency for surface treatment. White fused alumina P grain is widely used in coated abrasive such as abrasive cloth, abrasive paper, abrasive belts, etc. FEPA-standard 43-1:2006: grains of fused alumina, silicon carbide, and other abrasive materials for coated abrasives macro grits P 12 to P 220.
Introduce white fused alumina coated abrasives P grain P180~P220:
White fused alumina is a very high purity aluminium oxide and thus recommended when contamination is an issue to be considered. It is obtained from the fusion of high purity calcined alumina in electric arc furnaces. The result is a product with high hardness, high friability, high purity, high melting point, and large crystal size. The main difference between white and brown fused alumina is purity and friability. White is highly pure and highly friable, breaking down quickly.
Chemical composite and of white fused alumina coated abrasives P grain P180~P220:
| Al2O3 | Na2O | Fe2O3% | SiO2 |
| ≥99 | ≤0.4 | ≤0.1 | ≤0.02 |
Physical properties of white fused alumina coated abrasives P grain P180~P220:
| Hardness: | Mohs:9.0 |
| Maximum service temperature: | 1900 Degree |
| Melting Point: | 2250 Degree |
| Specific Gravity: | 3.95g/cm3 |
| Volume density | 3.6g/cm3 |
| Bulk density(LPD): | 1.55-1.95 g/cm3 |
| Colour: | White |
| Particle shape: | Angular |
Particle size distribution of white fused alumina coated abrasives P grain P180~P220:
| Grit designation | Mean Diameter in µm |
| P 100 | 162 |
| P 120 | 125 |
| P 150 | 100 |
| P 180 | 82 |
| P 220 | 68 |
White Fused Alumina（FAQ）
What is grit size?
Grit size typically runs from coarse (16 -24 grit), medium (36 – 60 grit) and fine (80-120 grit). Superfine grits run from 150 and higher. Grinding wheels usually will be between 24 and 100 grit. Honing stones and jointing stones and other polishing abrasives will be 150 grit and higher.
Can you produce according to the samples?
Yes, we can produce by your samples or technical drawings. We can build the molds and fixtures.
Can i get sample in free , how long is the time?
Yes, certainly. We will provide the sample is in free below 5 kgs for free, and the freight cost for free in 1kg. We could arrange the existing samples express delivery immediately. For any special samples requirement, it need max 7 days finished. Usually we send samples by TNT ,FEDEX,
What is the specific surface?
The specific surface means the outer surface of a substance including all accessible pores in relation to the mass. It is determined using the Brunauer-Emmett-Teller (BET) method.
What are the different coated abrasive grain types and their characteristics?
Aluminum Oxide – Aluminum Oxide is brown or reddish in color and a man-made abrasive. It is durable with tough cutting edges. It offers long life and is highly wear resistant even under stress applications. Its applications include aluminum, ferrous metals (including alloy steel), hardwood, and leather. Crocus – Crocus
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