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Industrial Grade Calcined Alumina Gamma Alumina

China Industrial Grade Calcined Alumina Gamma Alumina, Find details about China Alumina, Calcined Alumina from Industrial Grade Calcined Alumina Gamma Alumina

Model NO.
Gamma Alumina
Quality
First Class
Particle Size
1-75um
Calcined Temperature
1420-1450 Celsuis Degree
Appearance
White Fine Powder
Trademark
XS
Transport Package
25kg Bags or Customer′s Demand
Specification
99% min
Origin
China
HS Code
28182000
Model NO.
Gamma Alumina
Quality
First Class
Particle Size
1-75um
Calcined Temperature
1420-1450 Celsuis Degree
Appearance
White Fine Powder
Trademark
XS
Transport Package
25kg Bags or Customer′s Demand
Specification
99% min
Origin
China
HS Code
28182000
98.5% Calcined Alumina
AL2O398.9%
SiO20.02
Fe2O30.01
Na2O0.21
D50 (um)93.114
IGNITION LOSS1
REMARK: (INDUSTRY GRADE OF ALUMINIUM OXIDE, WHICH FOR CALCINED ALUMINA AND CERAMICS, electrolytic aluminium)


Breif Introdiction--------- calcined alumina powder
Active / Calcined alpha-AL2O3 Powder


High temperature calcined alumina powder has high melting point, excellent mechanical strength, hardness, high resistivity and thermal conductivity. It can be widely used in electronic equipment, structural ceramics, refractories, wear-resistant materials, polishing materials and other industries.
 

Characteristic--------

  • White powder or fine sand
  • Crystal structure stability
  • Insoluble in water
  • Difficult to dissolve in acid and alkali solution
  • Good thermal stability
  • Easy to grind
  • Easy sintering
Industrial Grade Calcined Alumina Gamma Alumina

Main uses--------

  • High temperature refractories
  • Castable
  • Electric porcelain device
  • Automobile spark plug
  • High alumina porcelain parts
  • Wear-resistant Porcelain Parts
  • Good for electronic substrate
  • Abrasive material
  • Polishing material
  • high alumina structural ceramic
  • various abrasives ,abrasive tools and fillers
  • Fine powder of various ceramic and refractory grade alumina

Alumina Powder

Industrial alumina powder---Metallurgical grade alumina powder

Calcined alumina--- mainly used in ceramics, refractories, glazing etc

White fused alumina--- used in refractory,grinding&polishing,abrasives

Tabular alumina--- used in refractory

Specification of calcined alumina:
 

ITEM NO.

PHASE

Al2O3
%

Na
ppm

Fe
ppm

Ca
ppm

Si
ppm

Cu
ppm

Mg
ppm

Ti
ppm

Cr
ppm

D50
Um

BULK DENSITY
g/cm3

SPECIFC SURFACE AREA
m2/g

01

α-Al2O3

≥99.999

≤2

≤1

≤1

≤2

≤1

≤1

≤1

≤1

1~40

0.3~0.5

2~10

02

γ-Al2O3

≥99.999

≤2

≤1

≤1

≤2

≤1

≤1

≤1

≤1

1~40

0.2~0.5

≥60

 

Items

 

Chemical components

 

 

a-Al2O3

 

Effective density g/cm3

Primary crystal size D50 um

Particle size D50 um

Al2O3 %

SIO2 %

Fe2O3 %

Na2O %

L.O.I. %

AC-30

≥99.2

≤0.10

≤0.04

≤0.35

≤0.20

≥94

≥3.93

3-5um

 

75-90um

AC-30A

≥99.2

≤0.01

≤0.04

≤0.35

≤0.20

≥93

≥3.93

1.5-3.5um

Industrial Grade Calcined Alumina Gamma Alumina


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Industrial Grade Calcined Alumina Gamma Alumina

 


 

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