White Aluminium oxide 400#
Product Introduction of White Aluminium Oxide 400# :
White Aluminium oxide 400# is an excellent wear resistance and grinding powder. It is made from an Electrofused process of alumina. With low Na2O, SiO2, and Ferro, it is suitable for making contaminated surface treatment. At the same time, it can enhance the thermal performance and anti-slip effect for coating, glue, epoxy material, etc.
Other names: White fused alumina 400#, Electrocorundum 25A F320, Electrocorundum 25A M40, White alundum 400mesh, white Alox 400#
CHEMICAL COMPOSITION of White Aluminium Oxide 400#:
| Item | Guarantee Value(%) | Typical Value(%) |
| Al2O3 | ≥99.2 | 99.53 |
| Fe2O3 | ≤0.04 | 0.03 |
| SiO2 | ≤0.20 | 0.08 |
| Na2O | ≤0.30 | 0.25 |
| MgO | ≤0.05 | 0.03 |
| CaO | ≤0.05 | 0.02 |
| K2O | ≤0.05 | 0.03 |
PHYSICAL PROPERTIES of White Aluminium Oxide 400#:
| Specific Weight | Hardness | PH Value | Melting Point |
| 3.95 g/ cm3 | 9.0Mohs scale | 7-9.5 | 2050℃ |
PARTICLE SIZE DISTRIBUTION: (Laser Analyzer LS609) :
| Size | Guarantee Value | Typical Value |
| D10(um) | ≥23 | 23.334 |
| D50(um) | 36-42 | 39.746 |
| D90(um) | ≤69 | 67.104 |
The particle size distribution of White aluminium oxide 400#
| D10(um): 23.334 | D50(um): 39.746 | D90(um): 67.104 | D97(um): 83.458 | D(3,2)(um): 35.041 | D(4,3)(um): 42.664 | Span: 1.101 |
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Usage of White aluminium oxide 400#:
- Grinding tool products such as oilstones, grinding fluids, and diamond dry polishing wheels.
- Zinc-rich coatings, polyurethane coatings, and other coating products.
- Ceramic products such as alumina insulation board, alumina ceramic membrane tube, ceramic wear-resistant layer, etc.
- Precise grinding and micro blasting for Inox, aluminum alloy, tungsten-molybdenum alloy, etc.
- Grinding and polishing of non-metallic products such as glass and ceramics.
- Reinforced wood flooring wear-resistant layer.
- Refractory & Precision Casting.
Production Details of White aluminium oxide
Package of White alumina
25kgs/Bag+1Ton/Jumbo Bag
25kgs/Bag+1Ton/Pallet
Customized Package such as paper bags are available
FAQ:
Q: What is the HS code of white fused aluminum oxide?
A: HS code is 2818109000.
Q: Are you a manufacturer or trading company?
A: We are a professional manufacturer of white fused aluminum oxide. HAIXU Abrasives has white aluminum oxide manufacturing experience of 22 years. The white fused aluminum oxide powder is one of our best sellers.
Q: What is the difference between suspension-treated white fused alumina powder and fine powders?
A: The suspension-treated WFA powder is of even particle size distributions. The white fused alumina fine powder always goes 200#-0,320#-0 produced by milling and gets particle size by mesh sieving.
Q: What are the differences between the FEPA standard and the JIS standard for aluminum oxide powder?
A: They defined the particle size range with different standards. FEPA standard gets 14 grits from 63um-1 um. While JIS standard gets 19 grits from 63um-1um.
Q: Do you have a MOQ of WFA grain?
A: Generally no limit of MOQ. Even 25kgs(1 bag)is ok for us. But the logistic cost will be higher than normal.
Q: How do you make quality control on White fused aluminum oxide powder before delivery?
A: Besides inspection items such as chemical, and density, we check aluminum oxide powder sizes during and after production for each batch. We also keep samples of each batch for 3 months.
Q: What are the differences between fused aluminum oxide powder and calcined aluminum oxide powder?
A: They are produced by different processes. For fused ones, it is a melting and fusing process at a temperature of 2250 °C. The hardness and grinding performance are better. For calcined aluminum oxide powder, they are produced by a calcining process in an oven or a Tunnel kiln at a temperature of 1300°C or 1800°C. Calcined aluminum oxide is with kinds of crystal shapes. The price of calcined aluminum oxide powder is always lower than fused ones.
Q: Are free samples available from you?
A: Yes, we provide free samples within 1 kg. Express costs have to be borne by customers.
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