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White Fused Alumina belongs to the group of electro-corundum. It is produced by controlled melting of alumina in an electric arc furnace. White fused alumina is iron-free, ultra pure and extremely hard.
◎Grinding, lapping and polishing medium
◎Ceramic grinding wheels and grinding media
◎Wear-resistant and refractory products
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Typical physical properties |
Typical chemical analysis |
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Hardness 9mohs
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Al2O3 >99.60%
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Grain Shape angular |
Na2O 0.26% |
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Melting point approx. 1950 ℃ |
Fe2O3 <0.03%
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Specific gravity approx. 3.9-4.1 g/cm3 |
SiO2 0.07%
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Bulk density approx. 1.5-2.1g/cm3 |
CaO 0.02%
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MgO 0.01%
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Packing
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25 kg bags on pallet up to 1 ton |
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1 ton loose in big bag |
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Grain sizes are supplied according to the FEPA recommendation
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FEPA
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Granulometry in µm
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Bulk Density in g/cm³ |
Mixed granulometry in mm
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10
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1680 - 2380
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1,84 – 1,97
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1,00 - 3,00
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12
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1410 - 2000
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1,83 – 1,96
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1,00 - 2,00
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14
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1190 - 1680
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1,81 – 1,94
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0,50 - 1,00
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16
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1000 - 1410
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1,80 – 1,93
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0,25 - 0,50
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20
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840 - 1190
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1,78 – 1,91
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0,12 - 0,25
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24
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600 - 840
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1,76 – 1,89
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0,06 - 0,12
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30
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500 - 710
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1,74 – 1,87
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36
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425 - 600
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1,72 – 1,85
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40
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355 - 500
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1,70 – 1,83
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46
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300 - 425
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1,68 – 1,81
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54
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250 - 355
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1,66 – 1,79
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60
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210 - 300
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1,64 – 1,75
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70
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180 - 250
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1,62 – 1,76
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80
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150 - 210
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1,60 – 1,73
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90
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125 - 180
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1,58 – 1,71
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100
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106 - 150
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1,56 – 1,69
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120
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88 - 125
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1,55 – 1,68
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150
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63 - 106
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1,53 – 1,65
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180
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53 - 88
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1,53 – 1,65
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220
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44 - 75
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1,52 – 1,64
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