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white fused alumina grit for abrasives

White fused alumina is made from excellent industrial alumina and melted in arc furnaces at high temperature of 2050℃.It is featured by high purity, good self-sharpening, low grinding heat output, acid-alkali and corrosion resistance, good stability at high temperature, and low porosity, etc.

 It’s  the high-quality raw material in abrasives industries, mainly used for producing grinding wheel, grinding and polishing tools, as well as the most promising material with bound less prospects used in military, ship building, glass making, aerospace, optical-instrument-manufacturing, nuclear power plants construction and other industries.

白刚玉化学成分表the chemical composition table of White fused alumina:

化学成分及粒度范围

Chemical composition & grain size range

化学成份 chemical composition（%）

Al2O3

SiO2

Fe2O3

Na2O

 

WA

F20-F80

98.5-99.5

≤0.10

≤0.08

≤0.35

F90-F150

98.5-99.2

F180-F280

98.2-99.0

≤0.10

≤0.08

≤0.60

 

 

白刚玉磨料的堆积密度 bulk density of the white fused alumina abrasive:

粒度号

Grain size

堆积密度范围值

Bulk density range

粒度号

Grain size

堆积密度范围值

Bulk density range

F16#

1.98-2.05

F60#

1.65-1.75

F20#

1.95-2.00

F70#

1.62-1.70

F22#

1.90-1.98

F80#

1.60-1.70

F24#

1.85-1.95

F90#

1.59-1.69

F30#

1.82-1.92

F100#

1.57-1.67

F36#

1.80-1.88

F120#

1.55-1.65

F40#

1.80-1.86

F150#

1.53-1.63

F46#

1.72-1.82

F180#

1.52-1.61

F54#

1.68-1.78

F220#

1.50-1.60

 

 

 

产品磁性物含量magnetic material amount of product (%) (GB/T2479-2008) :

粒度范围

Grain size value

磁性物含量magnetic material amount %

不多于not more than

WA和WA-P

WA和WA-B

F4-F30

P12-P30

0.0023

0.0040

F36-F60

P36-P60

0.0022

0.0035

F70-F120

P80-P120

0.0021

0.0030

F150-F220

P150-P220

0.0016

0.0025

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