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Tabular Alumina

Source:New Material of  RH Date:2018-06-25 Browsing Volume:3976 Second

1.Description:

A dense refractory material, our tabular alumina is a well-sintered, crystalline alpha alumina used as both a refractory aggregate and as fines addition to the matrix.Tabular Alumina is a pure sintered α-alumina materials that has been fully densified by rapid-sintering without the use of sintering aids at temperature in excess 1900°c.

2.Characteristics:

It characterized with low porosity, high fire proof, high corrosion proof, high scour proof,high stability of temperature shock,good tension and tenacity,stable chemical stability.

3.Application:

It has been widely used as the material of choice in unshaped and shaped high performance refractories in a variety of industries,such as steel, foundry,cement,glass petrochemical.


4.Specification:

Items

Unit

Guarantee Value

Typical Value

Chemical Composition

Al2O3

%

99.00 min

99.5

SiO2

%

0.20 max

0.09

Fe2O3

%

0.10 max

0.07

Na2O

%

0.40 max

0.20

Magnetic

%

0.02 max

0.01

Bulk Density

g/cm3

3.50 min

3.59

Absorbing Water Rate

%

1.0 max

0.7

Porosity Rate

%

4.0 max

3.00

Grain Size

mm

8-5, 5-3, 3-1,1-0

Fine Powder

mesh

-220, 325F


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