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Dragon Abrasives Group Limited

Add: 265# Anshanxi Street, Core Mall Times International Department, Nankai District, Tianjin, 300192 China

Fax: +86-22-87899537

Mob: +8613622002228

Tel: +86-22-87899539

E-mail: info@abrasives.asia

Web: http://www.abrasivesasia.com

Fused Alumina

Pink Aluminum Oxide

Instruction: Pink fused alumina looks pink, because is electrically fused in high temperature, being added with the right quantity of oxidized chromium. Its hardness is close to, but toughness higher than that of WA. It's an abrasive material with moderate friability, recommended for tool...


Instruction:

Pink fused alumina looks pink, because is electrically fused in high temperature, being added with the right quantity of oxidized chromium. Its hardness is close to, but toughness higher than that of WA.

It's an abrasive material with moderate friability, recommended for tool and internal grinding, grinding jobs in instrument industry. It's also suitable for various grinding purpose with high surface finish.


Chemical composition:

Grit

Low chromium

Medium chromiumHigh chromium

Al2O3
(%) 

 Cr2O3
(%) 

Na2O
(%)

Al2O3
(%)

Cr2O3
(%)

Na2O
(%) 

Al2O3
(%)

Cr2O3
(%)

Na2O
(%) 

F12-F80

≥98.50

0.20-0.45

≤0.50

≥98.20

>0.45-1.00

≤0.55

≥97.40

>1.00-2.00

≤0.55

F90-F150

≥98.50

≤0.50

≥98.20

≤0.60

≥97.00≤0.60

F180-F220

≥98.50

≤0.50

≥98.80

≤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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