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Brown Fused Alumina Oxide

Detailed Product Description

Al2O3 Content:

above 94%

Product Name:

Brown Fused Alumina (Corundum)

Application:

Abrasives&Refractories

Feature:

High Purity

Grain Size: F8#~F220# Refractoriness: 1900 ℃
Fine Powder: 0~330mm Max service temperature: 1850 ℃

Brown fused alumina is based on high-quality bauxite raw material, mixing with moderate anthracite and iron filings, by melting at 2,000℃in electrical arc, and then crushing, selecting and shaping to be various sizes. It has been the best aggregate and fillers of brown corundum refractory materials. Corundum size is usually made as per international or national standards, customized is available. The general grain size is F4~F320, depending on chemical compositions.

Features: high purity, high erosion resistance, well crystallization but cost-effective; strong liquidity and low coefficient of linear expansion; no explosion, no powdering, no splitting during usage

Application:

               a. to make abrasive tools with better grinding performance, lower heat liberation rate, higher grinding ratio;

b. to make sintered abrasives with dark blue、no map cracking and no rust spot;

c. to make the high-quality ceramic and resinous bonded abrasive products, grinding and polishing, etc.

Specification:
Brown Fused Alumina for Abrasive\Sandblasting\Precision casting

Purpose

Specification

Chemical   composition%

Magnetic   material content%

Al2O3

Fe2O3

SiO2

TiO2

BFA   For Abrasive

F

4#—80#

≥95.0

≤0.25

≤1.0

≤3.0

≤0.05

90#—150#

≥95.0

≤0.03

180#—240#

≥94.5

≤0.3

≤1.5

≤3.5

≤0.02

P

8#—80#

≥95.0

≤0.25

≤1.0

≤3.0

≤0.05

100#—150#

≥95.0

≤0.03

180#—220#

≥94.5

≤0.3

≤1.5

≤3.5

≤0.02

W

1#-63#

≥94.0

≤0.5

≤1.8

≤4.0


Brown Fused Alumina /Brown Aluminum Oxide for refractory

Purpose

Specification

Chemical composition(%)

Magnetic material content(%)

Al2O3

Fe2O3

SiO2

TiO2

For   Refractory

Size   sand

0-1mm
1-3mm
3-5mm
5-8mm
8-12mm

≥95.0

≤0.25

≤1.0

≤3.0   

0-3mm
0-5mm
0-10mm
0-25mm

≥95.0

≤0.25

≤1.0

≤3.0

Fine   powder

180#-0
240#-0
320#-0

≥94.5 

≤0.30  

≤1.5   

≤3.5   

 

Brown   Fused Alumina /Brown Aluminum Oxide Physical   Properties

Color

True   Density

Mohs   Hardness

Melting   Temperature

Crystal   System

Refractory   Temperature

Brown

3.90g/cm3

9.0

2050°C

trigonal   system

1900°C

Brown fused corundum

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