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2010-9-6
 
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  ◆ Medium Alumina Ceramic Balls  
 

Medium alumina ceramic balls

Size:1/4”-2”

Al2O3 :47-56%

Chemical and Physical Properties
& Typical chemical composition
Al2O3 +SiO2 >93% MgO <0.5
Al2O3 47-56 CaO <2
Fe2O3 <1 K2O+ Na2O <3.5
TiO2 <0.1    
Soluble Fe2O3: <0.001
& Typical physical properties
Dengsity g/cm³ 2.6
Water absorption wt% ＜2
Mohs hardness Scale ＞7
Specific heat （max） ℃ 1480
Crushing strength KN/pc
1/4” (6mm) ＞0.56
1” (25mm) ＞4.89
1½”(38mm) ＞5.33
2”(50mm) ＞6.22
& Size and Tolerance
DiameterØ mm 3 6 8 10 13 16 20 25 30 38 50 65 75
Tolerance ±1.0 ±1.5 ±2.0 ±3.0
 
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