Zhongci 17-19% Al2O3 Inert Alumina Ceramic Ball 3mm 6mm 10mm Support Media Porcelain Ball
17%-19%Ordinary Ceramic Ball, is the most widely used support media in the world because of their excellent consistence and reliability.
Zhongci 17%-19% Ordinary Ceramic Ball, is manufactured from very high quality chemical-porcelain clay materials, which has quite excellent stability, high mechanical strength and resistance to thermal shock, This makes them all ideal choice for support of all types of catalyst.
Typical Application:
Be mainly used in the petroleum, chemical industry, fertilizers, natural gas, environmental protection and other industries. It plays a role of supporting and compacting the packing of the tower.

Technical Parameter (More Specification Requirments Please Contact Us)
Model |
ZC17 Ceramic Ball |
Color |
Light gray |
Shape |
Ball |
Chemical composition |
|
Min. % |
Max. % |
Usual % |
Al2O3 |
17 |
19 |
18 |
SiO2 |
70 |
77 |
74.9 |
Al2O3 + SiO2 |
90 |
94 |
93 |
Fe2O3 |
/ |
1.0 |
0.9 |
TiO2 |
/ |
0.5 |
0.46 |
CaO |
/ |
0.5 |
0.42 |
MgO |
/ |
0.5 |
0.38 |
Na2O |
/ |
2 |
1.12 |
K2O |
/ |
3.5 |
3.28 |
Physical properties |
Leachable Iron (%) |
≤0.1 |
Apparent Porosity by Weight (%) |
D≥10mm |
≤0.4 |
D=6mm |
≤1.0 |
D=3mm |
≤3.0 |
Water absorption (wt.%) |
<0.5 |
Acid resistance (%) |
>99.8 |
Alkaline resistance (%) |
>85 |
Bulk Density |
(g/cm3) |
1.35 |
(lb/ft3) |
84 |
Specific density |
(kg/m3) |
2300 |
(lb/ft3) |
144 |
Moh's hardness (scale) |
>6.5 |
Thermal conductivity (w/m2.k) |
0.9-1.0 |
Specific heat (J/kg.ºC) |
628-837 |
Max. Operating Temperature |
(ºC) |
1050 |
(ºF) |
1922 |
Thermal expansion (%) (500ºC) |
0.20 |
Thermal Shock Stability (times) (500 ºC then water cooling) |
10 |
Geometric properties |
Nominal Size |
(mm) |
3 |
6 |
10 |
13 |
16 |
19 |
25 |
38 |
50 |
(inch) |
1/8 |
1/4 |
3/8 |
1/2 |
5/8 |
3/4 |
1 |
1.5 |
2 |
Crush Strength Min. |
(lbs) |
77 |
176 |
234 |
572 |
726 |
1672 |
1870 |
2090 |
3476 |
(kg) |
35 |
80 |
106 |
260 |
330 |
760 |
850 |
950 |
1580 |
(N/PC) |
343 |
784 |
1039 |
2548 |
3234 |
7448 |
8330 |
9310 |
15484 |