Lupek D 463 HR [en]

Garanteed values

      ČSN 721300
Chemical composition, Psychical properties Al2O3(min%) 35,0 D
Refractoriness (CS/DIN) 169,0 4
Fe2O3(max%) 3,0 6
Water absorption (%) 10-14 3

Non attested values

Chemical composition: Typical analysis (%) Range (%)
Al2O3 36,38 35,0-37,0
Fe2O3 2,57 2,2-3,0
TiO2 1,22 1,2-1,4
K2O 1,12 0,7-1,3
Na2O 0,19 0,05-0,2
CaO 0,34 0,3-0,7
MgO 0,31 0,2-0,5
SiO2 57,80 60,3-55,9
Loss on ignition 0,20 0,15-0,3
Physical properties    
Refractoriness (CS/DIN) 169 169-170
5,20 4,0-5,9
Bulk density (g/cm3) 2,38 2,30-2,45
Temperature of calcination (°C) 1,150
Calcined at Rotary kiln
Mineralogical properties    
Mullit 36 -
Cristobalit 4 -
Quartz 6 -