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2010-9-6
 
Inert Ceramic Ball
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  ◆ Inert Alumina Ceramic Balls  
 

Inert alumina ceramic balls

Size: Ø6- Ø75

&Chemical Composition
Chemical composition Content
AL2O3 （Normal Value + 4）%
AL2O3+SiO2 ≥92%
Fe2O3 <1%
&Chemical and Physical Property
Main crystal phase
AL2O3
item		 Feldspar Feldspar-
mullite		 Mullite Mullite corundum Corundum
20-25 25-45 45-70 70-90 >90
Density （g/cm³） 1.4-2.0
Water absorption （%） <3 <1
Anti-acid（%） >98
Anti-alkali（%） >80 >82 >85 >90 >95
Spalling resistance（℃） >250 >300 >500 >700 >800
Refractoriness （℃） >1300 >1400 >1500 >1600 >1700
Crushing strength KN/pc Ø6 >0.40 >0.45 >0.6 >0.7 >0.8
Ø8 >0.7 >0.8 >0.9 >1.0 >1.2
Ø10 >0.9 >1.0 >1.2 >1.5 >1.8
Ø13 >1.2 >1.3 >1.6 >1.8 >2.0
Ø16 >1.5 >1.6 >1.8 >2.3 >2.6
Ø20 >1.8 >2.0 >2.3 >2.8 >3.20
Ø25 >2.5 >2.8 >3.2 >3.6 >4.0
Ø30 >2.8 >3.0 >3.5 >4.0 >4.5
Ø38 >4.0 >4.5 >5.0 >5.5 >6.0
Ø50 >6.0 >6.2 >10.0 >10.5 >11.0
Ø60 >8.0 >8.5 >11.0 >12.0 >14.0
Ø75 >13.0 >11.0 >12.0 >14.0 >15.0
& Size and tolerance
Diameter Ø 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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