46% Cr₂O₃ Chromite Sand Foundry Grade Refractory Chromite Ore Sand
Chromite Sand 46% Cr₂O₃ is a high-quality natural chromite ore sand widely used in foundry casting and refractory industries. With stable chemical properties, high heat resistance, and excellent slag resistance, our 46% chromium content chromite sand ensures good collapsibility, high refractoriness, and stable performance during high-temperature casting. It is ideal for manufacturing precision castings, refractory bricks, lining materials, and other high-temperature industrial applications. We provide consistent particle size, low impurity content, and bulk supply for global industrial customers.
Product Highlights
- Cr₂O₃ content: 46% min
- High refractoriness and thermal stability
- Excellent slag resistance and collapsibility
- Low impurity and stable chemical composition
- Suitable for foundry casting and refractory materials
- Customizable particle size and bulk packaging available
Physical and chemical index
| 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% |
| Cr/Fe | 1.55:1 | |
| 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 |
| Packing | MT | 1 big bag |
| Sizes | AFS25-35 AFS25-30 AFS30-35 AFS35-40 AFS40-45 AFS45-50 AFS40-50 AFS50-55 AFS55-60 AFS60-65180mesh 200mesh 325mesh 400mesh 500mesh 600mesh 800mesh 1000mesh 1200mesh 1500mesh 2000mesh 2500mesh |
