Products

ALUMINITE BALL

Features

  • ALUMINITE BALL is a polycrystalline sintered body of corundum having a dense internal structure. It is high-purity spherical SINTERED ALUMINA containing 99.5% of Al2O3.
  • By adding a slight amount of MgO, it is controlled to suppress abnormal crystalline growth and have the uniform structure of 20-40μm.
  • This product has the following advantageous chemical and physical properties:
    • High fluidity
    • High melting point
    • High mechanical strength
    • High resistance to thermal shock
    • High chemical stability
    • High wear resistance
    • High volume stability at high temperature

Features

  • Porous Plug for gas purging during the ladle refining at steel mills
  • Heat media for fluidized roaster
  • Catalyst carrier on petrochemistry
  • Powder to be laid for ceramic baking
  • Mixing media for ink or dye in mixing mill

Product lineup

ALUMINITE BALL 3-2mm

3-2mm

ALUMINITE BALL 2-1mm

2-1mm

ALUMINITE BALL 1-0.5mm

1-0.5mm

ALUMINITE BALL 0.5-0.3mm

0.5-0.3mm

Product information

Chemical composition, physical property

Item Representative value Guaranteed value
Chemical composition (%) Al2O3 99.67 Min. 99.50
SiO2 0.02 Max. 0.10
Fe2O3 0.02 Max. 0.10
TiO2 tr.  
CaO 0.03 (CaO+MgO)
Max. 0.25
MgO 0.06
K2O 0.01 (K2O+Na2O)
Max. 0.30
Na2O 0.19
Ig.loss tr.  
Total 100.00  
Physical property
(Numeric value per grain size of 1-0.5mm)
Apparent specific gravity 3.77  
Bulk specific gravity 3.74 Min. 3.60
Water absorption (%) 0.2  
Apparent porosity (%) 0.8 Max. 5.0
True specific gravity 3.95  
True porosity (%) 5.3  

Grain size distribution

Grain size Mesh size remaining percentage Representative value Guaranteed value
3-2mm μm +3000 3000/2800 2800/2360 2360/2000 -2000 +2800 -2000
% 0.5 7.2 47.9 40.0 4.4 Max. 15 Max. 10
2-1mm μm +2000 2000/1400 1400/1000 -1000  +2000 -1000
% 4.1 51.1 39.6 5.2  Max. 10 Max. 10
1-0.5mm μm +1000 1000/850 850/710 710/500 -500 +1000 -500
% 4.8 20.2 33.3 36.6 5.1 Max. 10 Max. 10
0.5-0.3mm μm +600 600/500 500/425 425/300 -300 +500 -300
% 0 4.7 42.8 48.2 4.3 Max. 10 Max. 10

If you have any inquiry, please contact the following:

[Ceramics Sales Dept.]
12-8, Shiokusa-cho, Seto-shi, Aichi 489-0895, Japan
Tel: +81-561-21-5670  Fax: +81-561-21-4124

→For the inquiry form, click here.

pagetop