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Abrasive Grain Sizes: 0.2-5mm
Usage: Light-weight Refratory
Material: alumina podwer
Brand Name: Haixu
color: white
Model Number: 0.2-5mm
Place of Origin: China (Mainland)
colour: white
shape: hollow ball
Bulk density: 0.5-1g/cm3
factory: yes

Specifications

Light-weight Refratory-Hollow Aluminum Ball 

Product Description

Hollow Aluminum Ball for Insulating Bricks is a new type of high temperature insulation material which is made from industrial aluminum treated by smelting in an electric furnace. the crystal form is a-Al2O3 micro crystals
Hollow Aluminum Ball can be made into various shpes with the highest temperature 1800 ℃, which is of high mechanical strength, and the volume density is only one-half of corundum products.

There are mixed grade and graded ball two types:

Mixed grade: 0.2-5mm

Graded grade: 0.2-1mm, 1-2mm, 2-3mm, 3-5mm.

Chemical data

 

Chemical index for Hollow Aluminum Ball

size

Al2O3

Fe2O3

SiO2

Na2O

MgO

K2O

Cao

0.2-5mm

≥99%

≤0.15%

≤0.3%

≤0.5%

≤0.1%

≤0.1%

≤0.1%

PHysical index for Hollow Aluminum Ball

Bulk density

Refractoriness

Shape

0.5-1g/cm3

1800 degree centigrade

WHite hollow ball

 Bulk density(g/cm3)

Item

5-4mm

4-3mm

3-2mm

2-1mm

1-0.5mm

3-0.2mm

0.5-0.2mm

g/cm3

0.45

0.55

0.65

0.75

0.85

0.85

0.95

 Alumina hollow ball 1-2mm:
LightWeight RefratoryHollow Aluminum Ball