Chromite Sand
Chromite sand is the good foundry material for its high thermal resistance, fast chilling capacity and resistance to liquid metal penetration.
Chromite sand typical composition is：Cr2O3: 46%, FeO: 27%, Al2O3: 15% and MgO:10%.
| PHYSICAL PROPERTIES(TYPICAL) | AVERAGE CHEMICAL COMPOSITION(TYPICAL) | ||
| PH | 7-9 | Cr2O3 | ≥46.0% |
| Color | Black | SiO2 | ≤1.0% |
| Acid Amount | ≤2m | Fe2O3 | ≤26.5% |
| Soil% | ≤0.1 | CaO | ≤0.30% |
| Bulk Density | 2.5-3.0g/cm3 | MgO | ≤10.0% |
| Specific Gravity | 4.0-4.8g/cm3 | Al2O3 | ≤15.5% |
| Moisture | ≤0.1% | P | ≤0.003% |
| Sintered temperature | ≥1800℃ | S | ≤0.003% |
| Free Acid | 0 | Cr/Fe | 1.55:1 |
| Filling density | 2.6g/cm3 | ||
| Melting temperature | ≥2180℃ | ||
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The chromite sand is compatible with all chemical processes for molds and cores.
chromite sand is suitable in the foundry industry for the manufacture of molds and cores.
Chromite Sand is applicable to all types of steels and appropriate for parts of chrome, chrome-nickel, manganese steel.