Gong tao company can customize various alumina ceramic parts such as plate,wafer,gasket,screw,disk ect.
These items have wear-resistance,shock resistance,and convenient construction ect.They are wear-resisting and ideal material for material transportation equipment in industry such as petroleum,mine,steelworks,electric plant.And they can prolong the using cycle of equipment effectively.
Gongtao company can make special various wear-resistance parts based on the requirement and drawing.
AL2O3 conent % |
60 |
75 |
80 |
85 |
92 |
95 |
99 |
99.7 |
Bulk density(g/cm3) |
3 |
3.1 |
3.3 |
3.4 |
3.6 |
3.7 |
3.81 |
3.85 |
Flexural Strength(MPa) |
205 |
280 |
215.7 |
230 |
312 |
304 |
340 |
370 |
Coefficient of linear expansion(×10-6/°C)(25-800°C) |
7.1 |
7.6 |
7.6 |
7.6 |
7.5 |
7.3 |
7.6 |
7.6 |
Thermal conductivity[w/(m.R)] |
16 |
17 |
17 |
17 |
18 |
20 |
34 |
35 |
Insulated strength(KV/mm) |
10 |
10 |
10 |
10 |
10 |
10 |
10 |
10 |
Bulk density resistance(Ω.cm)20°C |
>1014 |
>1014 |
>1014 |
>1014 |
>1014 |
>1014 |
>1014 |
>1014 |
300°C |
>1013 |
>1013 |
>1013 |
>1013 |
>1013 |
>1012 |
>1010 |
>1010 |
Long term operating temperature (°C) |
1350 |
1000 |
1250 |
1290 |
1390 |
1480 |
1600 |
1700 |
Hardness |
7.5 |
7.5 |
7.5 |
7.5 |
8.5 |
8.8 |
9 |
9 |
Refractoriness |
1800 |
1700 |
1800 |
1850 |
1920 |
2000 |
2030 |
2040 |