INDEX STANDARD  
 
Item
Calcined Flint Clay
Brand YNB-45 YNB-44 YNB-43 YNB-42 YNB-40 YNB-36
Al2O3 45-50 44-50 43-50 42-50 40-50 36-42
Fe2O3 1.0 1.2 1.5 2.0 2.5 3.5
Refractoriness 1770 1750 1750 1730 1710 1670
Bulk Density g/cm3 2.55 2.50 2.45 2.40 2.35 2.30
 
     
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