PRODUCT / WHITE FUSED ALUMINA
White Fused Alumina
Fused from high-purity alumina in an electric arc furnace: a white, blocky, sharp-edged grain — hard, chemically stable and low in iron.
01 / THE MATERIAL
Two fused aluminas, one production base
White fused alumina is produced by fusing high-purity alumina in an electric arc furnace. The result is a white, blocky grain with sharp edges — hard, chemically stable, and low in iron, which makes it the standard choice where contamination has to be kept out of the process.
CHAOYAN manufactures brown fused alumina and supplies white fused alumina from the same Luoyang production base, so both materials can be specified, sampled and shipped together under one technical agreement.
- Two materials, one supplier: brown and white fused alumina graded and packed on the same site
- Full size programme: F grits, P grits, section sands, fine powders and micropowders
- Industrial-base pricing: Luoyang is China's main fused alumina production cluster; our prices are set at source, not through layers of resale
- Batch documentation: test report issued against each production batch
02 / PRODUCT LINES
Four product forms
F Grits — for bonded abrasives and blasting
FEPA F16–F220, graded to FEPA 42-1. Used in vitrified and resin grinding wheels, cutting discs, and as a reusable blasting medium for stainless steel, aluminium and other surfaces where iron contamination is not acceptable.
P Grits — for coated abrasives
FEPA P grits for sanding belts, discs and sheets, graded to FEPA 42-2. Grain shape and distribution are matched to coated abrasive production.
Section Sands — for refractories
0–1 mm, 1–3 mm, 3–5 mm (5–8 mm on request). Used in corundum bricks, castables, ramming mixes and other shaped and unshaped refractory products.
Fine Powders & Micropowders
200 mesh and 325 mesh fine powders for refractory and ceramic applications; FEPA micropowders F230 and finer for lapping, polishing and precision grinding of glass, crystal, ceramics and electronic components.
03 / SPECIFICATIONS
Typical analysis and size data
Typical chemical analysis
| Item | Unit | Typical value |
|---|---|---|
| Al₂O₃ | % | 99.3 |
| Na₂O | % | 0.23 |
| SiO₂ | % | 0.06 |
| Fe₂O₃ | % | 0.04 |
Physical properties
| Crystal form | α-Al₂O₃ |
| Colour | White |
| Grain shape | Blocky, sharp-edged |
| Bulk density | By grit size — see the size table below |
Size distribution and bulk density by grit
| Grit | Oversize grain % | Main grain % | Combined grain % | Bulk density g/cm³ |
|---|---|---|---|---|
| F54 | 13 | 63 | 82.3 | 1.86 |
| F60 | 7 | 69 | 91 | 1.80 |
| F70 | 6.5 | 55 | 86 | 1.73 |
| F80 | 21 | 50.5 | 73.3 | 1.74 |
| F90 | 13 | 58 | 86 | 1.71 |
| F100 | 9.4 | 67 | 89.8 | 1.70 |
| F120 | 15 | 54 | 87.3 | 1.64 |
| F150 | 5.5 | 87 | 94 | 1.61 |
| F180 | 4.5 | 68 | 82.5 | 1.57 |
| F220 | 4.2 | 53.8 | 73.8 | 1.51 |
| F240 | 0.1 | 16 | 67 | 1.50 |
| F280 | 0.1 | 82 | 39.2 | 1.48 |
Specific chemical, size and performance values are subject to the agreed product specification, technical agreement and batch test result.
04 / APPLICATIONS
Where white fused alumina is used
Graded and checked on the line
Every grade is sieved, magnetically separated and checked before it is bagged. The short clip shows coarse white fused alumina grain running through a grading sieve and a hand check — the same check each shipment batch passes before dispatch.
05 / PACKING
Standard export packing
Standard export packing: 40 × 25 kg bags inside a 1 MT jumbo bag. Palletised packing and custom bag printing are available on request.
White and brown fused alumina can be combined in one container — mixed on one load or kept on separate pallets — under one set of shipping documents.
06 / FAQ
Questions buyers ask
What is the difference between white and brown fused alumina?
Both are fused in an electric arc furnace, but they start from different feedstock and end up with different chemistry. Our white fused alumina is fused from high-purity alumina and tests at 99.3% Al₂O₃, with 0.04% Fe₂O₃ and 0.23% Na₂O, so it runs clean and is the usual choice for stainless steel, precision grinding and any job where iron contamination is a problem. Brown fused alumina is fused from bauxite; it is a bit tougher, less friable and lower in cost, and it covers most general grinding, blasting and refractory work. Tell us the application and we will suggest which grade fits — or supply both.
Can I order white and brown fused alumina in one shipment?
Yes. The two materials are graded and packed at the same Luoyang site, so they can be combined in one order and shipped together — mixed in a single container or kept on separate pallets — quoted FOB Tianjin. That means one technical agreement, one set of shipping documents and one payment (100% T/T in advance) covering both materials. Samples work the same way: up to 500 g of each material is free of charge and can be sent together, with freight on collect.
Which grit standards do you grade to?
F grits are graded to FEPA 42-1 across F16–F220, and P grits to FEPA 42-2, the standards bonded and coated abrasive producers work to. Section sands are sieved to millimetre cuts of 0–1, 1–3 and 3–5 mm, and fine powders come in 200 and 325 mesh. Micropowders run from FEPA F230 to finer sizes, and JIS grading can be followed on request — send us the specification you currently buy to and we will grade against it.
What is the standard packing?
Standard export packing is 40 × 25 kg bags inside a 1 MT jumbo bag, which keeps the small bags protected in transit and easy to handle at your warehouse. Palletised packing and bag printing to your own design are available on request — just mention it in your inquiry.
Can I get a test report for my batch?
Yes. Every production batch is tested before dispatch, and the batch test report is issued with your shipment, showing the chemical analysis and the size distribution of the grade you ordered. The white fused alumina we supply tests at Al₂O₃ 99.3%, Na₂O 0.23%, SiO₂ 0.06% and Fe₂O₃ 0.04%, with the exact figures for your order confirmed on the COA of that batch. If your specification sets limits on a particular element, tell us before production and we will check the batch against them.
INQUIRY
Request a quotation
Tell us the grit sizes, quantities and the specification you currently buy to. White and brown fused alumina can be sampled, quoted and shipped together — a free sample of up to 500 g per material can be sent first, with freight on collect.
Prefer to talk it through? Chat on WhatsApp ↗ or email lychaoyan@gmail.com.
Ordering brown fused alumina as well? See the brown fused alumina range ↗
REGISTERED BRAND
CHAOYAN trademark
CHAOYAN (超岩牌®) is registered to Luoyang Naibao New Materials Co., Ltd. under No. 14291407, Class 19. The registration dates from May 21, 2015 and has been renewed through May 20, 2035. The registered goods include refractory sand and other specified non-metallic refractory building materials. The registration is for the listed Class 19 goods.
Registration certificate ↗ · Approved goods ↗ · Renewal certificate ↗