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High Density Tabular Alumina

Sintered alumina , also referred to as tabular alumina , is made of imported industrial alumina as starting material by fast sintering in super-high temperature shaft kiln.Its micro structure is featured by closely packed well developed granular corundum crystals with a wide size range and many intra- and intercrystalline pores. The product is characterized by high purity , low alkali level,high strength , good thermal shock resistance and corrosion resistance.
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Product Description

High Density Tabular Alumina Powder 

PropertiesSintered alumina , also referred to as tabular alumina , is made of imported industrial alumina as starting material by fast sintering in super-high temperature shaft kiln.Its micro structure is featured by closely packed well developed granular corundum crystals with a wide size range and many intra- and intercrystalline pores. The product is characterized by high purity , low alkali level,high strength , good  thermal shock resistance and corrosion resistance.


ApplicationUsed as aggregates and powder in alumina-based and alumina-contained refractories ,it has been widely used in metallurgical industry (such as ladle lining refractories , sliding plate , purging plug, well-block ,stopper , long nozzle and submerged entry nozzle for con-casting, etc.) and other industries like ceramics petrochemical, glass, etc.


Chemical index

Item


Specification

Typical values

Chemical   compositon %

Al2O3

99.20

99.37

Na2O

0.40

0.28

SiO2

0.15

0.06

Fe2O3

0.07

0.04

Magntic Fe,%

0.02

0.01

Bulk   density,g/cm3

3.50

3.66

Apparent   porosity,%

5.00

3.1

Water   absorption,%

1.50

0.80

 

 Note : We can also Customized according to clients’ requirements.

1)    Screening standard:GB/T6003.1-2012 idt ISO3310-1:2000

2)    Product size:We can offer various sizes from 15 mm to under 2μm.

3)    Product package:25kg/bag,1000kg/bag or other specific packaging according to clients’ requirement.



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