Brown electro-corundum sand/grit/grain/powder
Brown electro-corundum sand/grit/grain/powder belongs to the group of the electro-corundum.
Brown electro-corundum sand/grit/grain/powder is produced by controlled melting fo the calcined bauxite in an electric arc furnace.
Brown electro-corundum sand/grit/grain/powder is iron-free and extremely tough.
Applications
Reusable abrasive
Wear-resistant & refractory products
Grinding,lapping & polishing medium
Ceramic grinding wheels & grinding media
Blasting systems
Pressure blast systems
Injection blast cabinets
Typical Physical Properties
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Hardness
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9 mohs
|
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Grain shape
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Angular
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Melting Point
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1950 C min
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True density
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3.9-4.1g/cm3
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Bulk density
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1.5-2.1g/cm3(depends on the size)
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Typical Chemical Analysis
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Al2O3
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95.15%
|
|
TiO2
|
2.25%
|
|
Fe2O3
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0.1%
|
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SiO2
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1.2%
|
|
CaO
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0.30%
|
|
NaO
|
0.25%
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Typical Size
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F-macrogrit
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F8,F10,F12,F14,F16,F20,F22,F24,F30,F36,F40,F46
F54,F60,F70,F80,F90,F100,F120,F150,F180,F220
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Fepa standard
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FEPA-Federation of European Producers of Abrasives
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GB standard
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Chinese stantard
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JIS standard
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Japanese Industry Standard
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Other grain sizes can be produced if required.
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F-macrogrits sizes bonded
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Grit designation
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Mean diameter in um
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|
F4
|
4890
|
|
F5
|
4125
|
|
F6
|
3460
|
|
F7
|
2900
|
|
F8
|
2460
|
|
F10
|
2085
|
|
F12
|
1765
|
|
F14
|
1470
|
|
F16
|
1230
|
|
F20
|
1040
|
|
F22
|
885
|
|
F24
|
745
|
|
F30
|
625
|
|
F36
|
525
|
|
F40
|
438
|
|
F46
|
370
|
|
F54
|
310
|
|
F60
|
260
|
|
F70
|
218
|
|
F80
|
185
|
|
F90
|
154
|
|
F100
|
129
|
|
F120
|
109
|
|
F150
|
82
|
|
F180
|
69
|
|
F220
|
58
|