
Electrocorundum White A25
Surface Preparation & Sandblasting
$2.88$0.88
Electrocorundum A25 is a high-purity form of aluminum oxide (α-Al₂O₃) produced by melting Bayer-process alumina in an electric arc furnace, then cooling to obtain transparent, crystallized corundum grains

ELECTROCORUNDUM A25 PHYSICAL PROPERTIES
Appearance: White granular
Crystal Form: α- Al₂O₃
Mohs Hardness: 9.0
Bulk Density: 1.5-2.0g/cm³
Specific Gravity: 3.95g/cm³
Melting Degree: 2250℃
Refractory Degree: 2000℃
Al₂O₃ CAS No.: 1344-28-1
HS Code: 2818109000
ELECTROCORUNDUM A25 ADVANTAGES
1.Does not affect the color of the workpiece
2.It can be used for sandblasting in the process where iron powder residue is strictly prohibited
3.Shaping grade particles are ideal for wet blasting and polishing abrasives
4.High Al₂O₃ purity with low Na₂O and low SiO₂
ELECTROCORUNDUM A25 APPLICATION
•Sandblasting and polishing operations.
•Atomized aesthetic processing of glass or acrylic artwork.
•Sandblasting during TV screen manufacturing.
•Cutting of silicon wafers.
•Cleaning and sandblasting of gear .
•Molding sand for precision casting.
•Additives for advanced refractories and other ceramics.
•Advanced grinding and polishing.
Download White Fused Alumina TDS, HS Code 28181090
CHEMICAL COMPOSITION(%)
Model | Particle Size | Particle Size | Al₂O₃ | Na₂O |
---|---|---|---|---|
WA | F4-F80 | P12-P80 | ≥99.20 | ≤0.30 |
WA | F90-F150 | P100-P150 | ≥99.20 | ≤0.35 |
WA | F180-F220 | P180-P220 | ≥98.70 | ≤0.40 |
WA | F230-F800 (#240-#1500) | P240-P1500 | ≥98.50 | ≤0.50 |
WA | F1000-F1200 (#2000-#2500) | P2000-P2500 | ≥98.30 | ≤0.60 |
WA | #3000-#8000 | — | ≥97.60 | ≤0.80 |
WA | #10000-#20000 | — | ≥97.40 | ≤0.90 |

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