Schamotte NP IIb
Garanteed values
| Chemical composition, Psychical properties | Al2O3(min%) | 37,00 |
| Fe2O3(max%) | 3,50 | |
| Refractoriness (CS/DIN) min. | 32/33 | |
| Water absorption (%) max. | 4,00 | |
| Bulk density (g/cm3) min. | 2,40 |
Non attested values
| Chemical composition: | Typical analysis (%) | Range (%) |
| Al2O3 | 38,50 | 37,00 - 40,00 |
| Fe2O3 | 3,30 | 3,00 - 3,50 |
| TiO2 | 1,23 | 1,20 - 1,40 |
| K2O | 1,02 | 0,90 - 1,30 |
| Na2O | 0,09 | 0,05 - 0,15 |
| CaO | 0,23 | 0,20 - 0,50 |
| MgO | 0,28 | 0,20 - 0,50 |
| SiO2 | 55,40 | 57,40 - 54,60 |
| Loss on ignition | 0,13 | 0,10 - 0,30 |
| Physical properties | ||
| Refractoriness (CS/DIN) | 32/33 | 32/33 - 33 |
| Water absorption (%) | 2,30 | 1,80 - 3,90 |
| Bulk density (g/cm3) | 2,45 | 2,45 - 2,55 |
| Temperature of calcination (°C) | 1 250 | |
| Calcined at | Rotary kiln |
| Mineralogical properties | ||
| Mullit | 35,00 | - |
| Cristobalit | 4,00 | - |
| Quartz | 8,00 | - |