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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

Hardness

9 mohs

Grain shape

Angular

Melting Point

1950 C min

True density

3.9-4.1g/cm3

Bulk density

1.5-2.1g/cm3(depends on the size)

Typical Chemical Analysis

Al2O3

95.15%

TiO2

2.25%

Fe2O3

0.1%

SiO2

1.2%

CaO

0.30%

NaO

0.25%

Typical Size

F-macrogrit

F8,F10,F12,F14,F16,F20,F22,F24,F30,F36,F40,F46

F54,F60,F70,F80,F90,F100,F120,F150,F180,F220

Fepa standard

FEPA-Federation of European Producers of Abrasives

GB standard

Chinese stantard

JIS standard

Japanese Industry Standard

Other grain sizes can be produced if required.

F-macrogrits sizes bonded

Grit designation

Mean diameter in um

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

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