Chromite sand for foundry
SIZES:AFS20-25 AFS25-30 AFS30-35 AFS35-40 AFS40-45 AFS45-50 AFS40-50 AFS50-55 AFS55-60 AFS60-65
Chemcial index for Chromite sand:
| Item |
Unit |
Index |
| Cr2O3 |
% |
≥46.0% |
| SiO2 |
% |
≤1.0% |
| FeO |
% |
≤26.5% |
| CaO |
% |
≤0.30% |
| MgO |
% |
≤10.0% |
| Al2O3 |
% |
≤15.5% |
| P |
% |
≤0.003% |
| S |
% |
≤0.003% |
Physical index for chromite sand:
| Bulk Density |
g/cm³ |
2.5-3 |
| Color |
/ |
Black |
| PH |
/ |
7-9 |
| The amount of the acid |
/ |
≤ 2 ML |
| Percent soil |
% |
≤0.1 |
| Percent Moisture |
% |
≤0.1 |
| The sintered |
℃ |
1600 |
| Percentage of free acid present in the sand |
% |
0 |
| filling density |
g/cm³ |
2.6 |
| sintering point |
°C |
> 1,800 |
| melting temperature |
°C |
2,180 |
