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                  The excellent characters of alumina ceramic ball :
                  1:  High purity , alpha alumina structure , low silica 
                   alumina ball 99% is with > 99wt % alpha alumina and < 0.2wt % of SIO2, the high purity , low silica and high strength make this balls an ideal selection for the high temperature and steam applications, where the environment should be avoid the problem of leached silica coating downstream equipment of fouling or polluting the catalyst bed 
                  2: Excellent thermal and mechanical shock resistance properties
                  With the excellent of thermal and mechanical shock resistance properties and the high density , alumian ceramic ball 99% are able to work on the temperature up to 1600 degree 
                  3: Excellent chemical stability with strong resisting of acid , alkaline and organic impregnant make it suitable for applications in olefin processes such as ethylene dryers , where polymerization could be a problem 

                  Chemical composition :

                  Items 

                  Type 90

                  Type 99

                  Type 99.5

                  Al2O3

                  >90%

                  >99%

                  >99.5%

                  SiO2

                  < 7% 

                  <0.2%

                  <0.2%

                  Fe2O3

                  <0.5%

                  <0.1%

                  <0.1%

                  Na2O+K2O

                  <1.0%

                  <1.0%

                  <0.4%

                  MgO+CaO

                  <1.0%

                  <0.2%

                  <0.2%



                  Physical Character:

                  Item 

                  Type 90

                  Type 99-1

                  Type 99-2

                    Type-99.5

                  Heat resistant up to 

                  1500 ℃

                  1500 ℃

                  1600 ℃

                    1600 ℃

                  Water absorption 

                  <5 % 

                  2-6%

                  <1 %

                     <1 %

                  Particle Density (g/cm3)

                  >3.1

                  >3.3

                  3.3~3.65

                    3.3~3.65

                  Package Density (kg/L)

                  1.6-1.7

                  1.9-2.0

                  2.0

                    2.0

                  Mohs hardness (Scale)

                  9

                  9

                  9

                    9

                  Impact shorck resistance (from height 6 m))

                  Passed 

                  Passed 

                  Passed 

                  Passed 

                  Average crushing strength

                  Lbs/pic

                  KN/pic

                  Lbs/pic

                  KN/pic

                  Lbs/pic

                  KN/pic

                  Lbs/pic

                  KN/pic

                  3mm (1/8)

                  90

                  0.4

                  112

                  0.5

                  135

                  0.6

                  135

                  0.6

                  6mm (1/4)

                  292

                  1.3

                  337

                  1.5

                  360

                  1.6

                  360

                  1.6

                  10mm (3/8)

                  1125

                  5

                  1350

                  6

                  1350

                  6

                  1350

                  6

                  13mm(1/2)

                  1575

                  7

                  1800

                  8

                  1800

                  8

                  1800

                  8

                  16mm (5/8)

                  3375

                  15

                  2025

                  9

                  2925

                  13

                  2925

                  13

                  19mm (3/4)

                  3825

                  17

                  4049

                  18

                  4275

                  19

                  4275

                  19

                  25mm (1)

                  4949

                  22

                  4500

                  20

                  4949

                  22

                  4949

                  22

                  38mm (1-1/2)

                  7874

                  35

                  8324

                  37

                  8999

                  40

                  8999

                  40

                  50mm (2)

                  8999

                  40

                  9449

                  42

                  10123

                  45

                  10123

                  45

                  76mm (3)

                  11248

                  50

                  12373

                  55

                  13498

                  60

                  13498

                  60

                   Application: Oil refinery, chemical, fertilizer, natural gas and environmental protection industries etc.


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