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White Fused Alumina


White fused alumina was made from the high quality alumina by melting above 2000 in the electric arc furnace and cooling. It is white with the main crystal phase alpha-Al2O3.The white alumina produced in titling electric arc furnace has the advantage of high bulk density and low porosity and the volume stability and thermal shock resistance can be improved.

Main Physical Properties

MOHS HARDNESS

9.0

BULK DENSITY

1.75-1.95g/cm3

SPECIFIC GRAVITY

3.95g/cm3


properties

Type

ABRASIVES GRADE

FEPA

8# 10# 12# 14# 16# 20# 22# 24#

30# 36# 40# 46# 54# 60# 70# 80# 90# 100# 120# 150# 180# 220#

F230 F240 F280 F320 F360 F400 F500 F600 F800 F1000 F1200 F1500 F2000

JIS

240# 280# 320# 360# 400# 500# 600# 700# 800# 1000# 1200# 1500# 2000# 2500# 3000# 4000# 6000# 8000#

Guarantee Value

Typical Value

Chemical

Composition

Al2O3

≥99

99.20

SiO2

≤0.4

0.08

Fe2O3

≤0.2

0.06

Na2O

≤0.4

0.35

Application

1,  Bonded abrasives and Coated abrasives

2Floor / Wall Laminates

3Thermal Spraying (Plasma Spraying)

4Lapping & Micro-blasting applications

5Surface preparation and finishing



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