CHAMOTTE NP Special

Garanteed values

Chemical composition, Psychical properties Al2O3(min%) 41,0
Fe2O3(max%) 1,50
Refractoriness (CS/DIN) min. 34/35
Water absorption (%) max. 1,5
Bulk density (g/cm3) min. 2,55

Non attested values

Chemical composition: Typical analysis (%) Range (%)
Al2O3 42,15 41,00 - 43,50
Fe2O3 1,25 0,80 - 1,50
TiO2 1,54 1,40 - 1,70
K2O 0,75 0,55 - 0,80
Na2O 0,05 0,03 - 0,07
CaO 0,13 0,10 - 0,20
MgO 0,18 0,10 - 0,20
SiO2 53,95 55,60 - 52,10
Loss on ignition 0,07 0,05 - 0,15
Physical properties    
Refractoriness (CS/DIN) 34/35 34/35 - 35
Water absorption (%) 1,3 1,20 - 1,50
Bulk density (g/cm3) 2,55 2,55 - 2,62
Temperature of calcination (°C) 1 350
Calcined at Rotary kiln with preheater (Precalcinator)
Mineralogical properties    
Mullit 38,0 -
Cristobalit 5,0 -
Quartz 3,0 -