High Quality Ceramic Ball

Detailed Product Description

  Alumina grinding ball, it has a large proportion of high mechanical strength, wear resistance and good. Is widely used in ceramics factory, mill, electronics, aerospace, chemical fertilizer, chemical Industries such as grinding.

 

 The CHENGYU 99 High Alumina Support Media is equal Denstone 99 Support Media. It is inchemical composition99+% alpha alumina and a maximum 0.2wt% SiO 2 . Because of its highalumina content and low silica (SiO2 ), it's a very excellent and ideal product for high temperature and steam applications, such as secondary reformers in ammonia processing, where leached silica will coat downstream equipment or foul the catalyst bed.
The CHENGYU 99 High Alumina Support Media has very excellent thermal properties, with its high density high-temperature resistance 1550, also it's a good choice for heat retention or equilibration media.
For its superior chemical resistance, it's suitable for applications in olefin processes, such as ethylene dryers, where there's the polymerization problem.

 Chemical composition     

Al2O3+SiO2	Al2O3	TiO2	Fe2O3	CaO	MgO	K2O+Na2O
>99%	99%	0.5%	0.2%	0.2%	0.1%	>0.5%

                                            

 Physical properties

Index	Value	Value
Leachable Iron	≤ 0.01%
Apparent Porosity by Weight	≤ 7.0%
Moh's Hardness Scale	>8.0
Water Absorption	<4.0wt.%
Acid Resistance	>99.8%
Thermal Conductivity	0.7-0.8 w/m 2 .k
Thermal Expansion @ 500	0.10%
Thermal Shock Stability, 1000 then water cooling	10 times
Max. Operating Temperature	1550	2822
Specific Density	3,400 kg /m 3	212 lb /ft 3
Bulk Density (Packing Density)	2,100 g /cm 3	131 lb /ft 3

 Crush Strength

Size /		Crush Strength
Nominal Size		(lbs)	(kg)	(N/pc)
mm	inch	min.	min.	min.
3	1/8	115	52	510
6	1/4	230	105	1030
10	3/8	440	200	1961
13	1/2	1355	615	6031
16	5/8	1720	780	7650
19	3/4	2315	1050	10297
25	1	3130	1420	13925
38	1-1/2	4034	1830	17946
50	2	4960	2250	22065