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Brown Fused Alumina (Abrasive grade)

Brown Fused Alumina is electrically fused in an arc furnace from a mixture of bauxite at high temperature. It has brown color, high hardness and great toughness. The abrasive tools made of brown fused alumina are suitable for grinding carbon steel, normal alloy steel, malleable cast iron and hard bronze. It used for refractory fused aluminum lining mixture, pouring materials castable, etc. 

Chemical

A1 2 0 3

SiO 2

TiO 2

Fe 2 O 3

CaO

MgO

95% min

1% max

1.5-3.9%

0.25%max

0.45%max

0.50%max

Grits No:

F8, F10, F12, F14, F16, F20, F22, F24, F30, F36, F40, F46, F54, F60, F70, F80, F90, F100, F120, F150, F180, F220

Grits NO:

cumuli density

Grits No:

cumuli density

F8

1.96-2.06

F46

1.73-1.83

F10

1.95-2.05

F54

1.73-1.82

F12

1.93-2.03

F60

1.71-1.81

F14

1.91-2.01

F70

1.66-1.76

F16

1.89-1.99

F80

1.64-1.74

F20

1.89-1.99

F90

1.63-1.72

F22

1.88-1.98

F100

1.63-1.71

F24

1.87-1.97

F120

1.60-1.70

F30

1.83-1.93

F150

1.58-1.68

F36

1.82-1.92

F180

1.58-1.68

F40

1.78-1.88

F220

1.58-1.65

Magnetism Material Content

8#-30# 0.0250 max

36#-70# 0.0200 max

80#-120# 0.0150 max

150#-220# 0.0120 max





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