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Pink Fused Alumina

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PINK FUSED ALUMINA


Pink Fused Alumina is produced by adding chromium oxide to high purity aluminum oxide during the fusing process. The amount of chromium oxide added affects the color of the final product, as well as the toughness of the grain. With increased additions of chromium oxide, the toughness of the grain increases.

Suntek Material’s Pink Fused Alumina is used in vitrified grinding wheels, coated abrasives, blasting abrasives and other applications.


 

Chemical composition (%):



Grit

low chromium

medium chromium

high chromium

Al2O3

Cr2O3

Na2O

Al2O3

Cr2O3

Na2O

Al2O3

Cr2O3

Na2O

F12~F80

≥98.50

0.2~0.45

≤0.50

≥98.50

0.45~1.00

≤0.50

≥97.40

1.00~2.00

≤0.55

F90~F150

≥98.50

≤0.55

≥98.20

≤0.60

≥97.00

≤0.60

F180~F220

≥98.00

≤0.60

≥97.80

≤0.70

≥96.50

≤0.70



Physical property:


Basic minerals

Crystal size
μm

True density
g/cm3

Bulk density
g/ cm3

Knoop hardness
kg/mm2

α-Al2O3

600-2000

≥3.90

1.40-1.91

2200-2300


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