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F12-F220
SEPPE ABRASIVE
2818109000
SEPPE White Corundum for Grinding Wheels is a high-purity white fused alumina abrasive grain designed for vitrified grinding wheels, resin bonded wheels, mounted points, cutting tools and precision abrasive tools. The material provides sharp cutting edges, low iron content and stable F grit distribution for clean grinding and consistent wheel structure.
Product: White Corundum for Grinding Wheels for bonded grinding wheels, vitrified wheels, resin wheels and precision abrasive tools
Other Names: White Fused Aluminum Oxide, White Aluminum Oxide, White Corundum
Country of Origin: China
Manufacturer of Material: SEPPE TECHNOLOGIES
White Fused Alumina is produced by melting high-purity alumina in an electric arc furnace, followed by cooling, crystallization, crushing, magnetic separation, screening and particle size classification.
Compared with brown fused alumina, white fused alumina has higher purity, lower iron content and a cleaner white appearance, making it suitable for abrasive applications where surface cleanliness and controlled finishing are important.
SEPPE supplies macro grits, micro powder, aggregate sizes and customized particle size grades according to final application and purchase requirements.
High Purity: Typical Al2O3 content is around 99.3%-99.5%, supporting clean abrasive performance and stable quality.
High Hardness: Mohs hardness around 9 provides sharp cutting ability for grinding, blasting, polishing and surface preparation.
Low Iron White Abrasive: White appearance and controlled Fe2O3 content help reduce contamination risk in precision finishing and decorative surface treatment.
Stable Chemistry: Controlled SiO2, Na2O and Fe2O3 levels help support consistent abrasive performance from batch to batch.
Wide Particle Size Range: F30-F54 and other F grit sizes can be supplied according to grinding wheel requirements.
| Main Content | alpha-Al2O3 |
| Specific Gravity | >=3.60 g/cm3 |
| Bulk Density | 1.5-2kg/m3 |
| Hardness | 9 Mohs |
| Color | White |
| Melting Point | 2350°C |
| Coefficient of Linear Expansion | (7-9)*10^-6/K, 0-1600°C |
| Size Available | F30-F54, with other F grit sizes upon request |
| Package | Jumbo bag, 25 kg bag and 40 bags on a pallet |
| Grit / Size | Al2O3 | SiO2 | Na2O | Fe2O3 |
|---|---|---|---|---|
| F24 | 99.50% Min | 0.04% Max | 0.30% Max | 0.03% Max |
| F30 | 99.45% Min | 0.05% Max | 0.32% Max | 0.04% Max |
| F60 | 99.40% Min | 0.06% Max | 0.33% Max | 0.05% Max |
| F120 | 99.30% Min | 0.08% Max | 0.35% Max | 0.08% Max |
| F320 / Fine Powder | 99.00% Min | 0.10% Max | 0.40% Max | 0.12% Max |
High-purity alumina selection → Electric arc furnace fusion → Cooling and crystallization → Crushing → Magnetic separation → Screening and classification → Final inspection → Packaging.
The process is designed to control alumina purity, impurity level, magnetic material, particle size distribution and visual whiteness for stable application performance.
Chemical composition testing for Al2O3, SiO2, Na2O, Fe2O3 and other indicators according to grade requirements.
Particle size distribution inspection according to ordered macro grit, micro powder or aggregate specification.
Magnetic material control, moisture review and visual whiteness inspection to support clean abrasive performance.
Batch COA, TDS, sample testing and third-party inspection can be arranged according to purchase requirements.
▸ Common packaging includes jumbo bags, 25 kg bags and 40 bags on a pallet. Customized packaging can be discussed according to order requirements.
▸ Palletizing, container loading, private label packaging and inspection support can be arranged upon request.
▸ Store in dry conditions and protect bags from moisture, contamination and package damage before use.
F30 is coarser for stronger cutting and rough grinding, F46 is a common medium grit, and F60 is finer for smoother grinding. Final selection depends on wheel bond, workpiece and surface finish target.
Yes. White corundum can be used for vitrified wheels, resin wheels, mounted points and precision bonded abrasive tools.
Stable grain size, cleanliness and controlled chemistry help the abrasive grain work consistently with ceramic or resin bond systems.
Yes. F grit inspection, batch COA, retained sample support and third-party inspection can be arranged.
Common packaging includes 25 kg bags, jumbo bags and palletized export packaging according to order requirement.
Contact SEPPE for grit size selection, chemical specification, grade-specific COA, TDS, samples, packaging and bulk order support.
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