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High grinding white alumina oxide
High grinding white alumina oxide

Minium order: 20'HQ Price: USD 150-200/mt,FOB Qingdao Payment terms: L/C , D/P ,T/T Annual output: 150000ton/year

High grinding white alumina oxide

With high quality alumina oxide powder as raw materials, white fused alumina is produced by fusing and extracting from crystallization. It is featured by high purity, self-sharpening, and acid-alkali and corrosion resistance, temperature tolerance. Compared with brown fused alumina, its thermal stability properties is slightly higher and toughness is slightly lower. The abrasive tools made of it are applicable for grinding high carbon copper and high-speed steel.

 

White fused alumina physical indicators:

Purpose

Specification

Chemical composition(%)

Magnetic material content(%)

Al2O3

Na2O

SiO2

CaO

For abrasive

F

12#—80#

≥99.0

≤0.5

≤0.4

≤0.003

90#—150#

≥98.5

≤0.6

≤0.003

180#—240#

≥98.2

≤0.7

≤0.4

≤0.002

W

1#-63#

≥97.5

≤0.8

≤1.0

≤0.5

≤0.001

For refractory

Size sand

0-1mm1-3mm3-5mm5-8mm8-12mm

≥99.0

≤0.5

≤0.4

≤0.003

farine

180#—0200#-0320#-0

≥98.5

 

≤0.3

≤0.5

≤0.001

Attention: F means the specification for bonded abrasives and sandblastingW means microry powder. 320# is W40.

 

Physical properties of White Fused Alumina:

Item

index

Color

Pure white

Crystalline form

Trigonal system

Hardness (Mohs)

≥9.0

Melting point (degree)

2250

The Max. temperature (degree)

1900

True Density (g/cm3)

≥3. 90

Linear expansion coefficient (0—1600degree)

7--9

High grinding white alumina oxide

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