Chromite
Chromite (FeCr₂O₄) is the main source of chromium, used in both metal alloys and foundry applications. In the automotive sector, chromite sand is used directly in casting engine blocks and brake components due to its heat resistance. Indirectly, it’s processed into chromium for stainless steel parts, high-temperature alloys, and chrome plating on trims and fittings.
Specification
Chromite
| Specific Gravity | 4.10 or 4.20 g/cm3 min |
| BaSO4 | 85% or 90% min |
| Extractable Carbonates | 3000 mg/l max |
| Hg | 1.00ppm/l max |
| Cd | 3.00ppm max |
| Water Alkaline Earth Metals as Calcium | 250 ppm max |
| Moisture | 1.00% max |
| Residue > 75 micrometers | 3.00% max |
| Particles < 6 micrometers in equivalent spherical diameter | 30.00% max |
