Description
Pink Fused Alumina (PFA) contains chromium oxide, which gives the material its pink color. The incorporation of the Cr2O3 into the Al2O3 crystal lattice produces a slight increase in toughness and a reduced friability compared with White Fused Alumina. Its main material is Bayer alumina and is produced in the same way as White Fused Alumina. Compared to Brown Fused Alumina the Pink material is harder, more aggressive and has better cutting ability. The grain shape of Pink Fused Alumina is sharp and angular.
Application
The abrasive tools made of it feature excellent durability and high processing cleanness, which are suitable for the precision grinding of the measuring tools, lathe main shafts, instruments and apparatus parts, threading work pieces and samplers, etc.
Chemical composition
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Chemical composition
Grit size range
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Low chromium
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Medium chromium
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High chromium
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Al2O3
(%)
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Cr2O3
(%)
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Na2O
(%)
|
Al2O3
(%)
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Cr2O3
(%)
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Na2O
(%)
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Al2O3
(%)
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Cr2O3
(%)
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Na2O
(%)
|
|
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F12~F80
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≥98.50
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0.20~0.45
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≤0.50
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≥98.20
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＞0.45~1.00
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≤0.55
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≥97.40
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＞1.00~2.00
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≤0.55
|
|
F90~F150
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≥98.50
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≤0.55
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≥98.20
|
≤0.60
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≥97.00
|
≤0.60
|
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F180~F220
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≥98.50
|
≤0.60
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≥97.80
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≤0.70
|
≥96.50
|
≤0.70
|
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Physical property
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Color
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Pink
|
|
Basic minerals
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α—Al203
|
|
Crystal size
μm
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600~2000
|
|
True density
g/cm3
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≥3.90
|
|
Bulk density
g/cm3
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1.4~1.91
|
|
Knoop hardness
kg/mm2
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2200~2300
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Available Grain Sizes & Standard
Grain sizes standards have been issued for full ranges of Macrogrit and Microgrit sizes by FEPA, ANSI and JIS.
FEPA—— European Federation of Abrasives Producers
ANSI——American National Standards Institute
JIS——Japanese Standardization Organization
Hazards Identification
It is not dangerous to health.
Its use is not associated with danger of silicosis.
It is neither carcinogenic nor toxic.
Packaging and Shipping
50 kg plastic woven bags of 1000 kg palletized.
Other packaging types on request
All of our products can be delivered to all over the world.