Chromite sand AFS50 for metallurgical sector
Chromite Sand AFS50 is a high-purity, chemically stable refractory sand specifically engineered for the rigorous demands of the metallurgical sector, particularly in foundry operations. Its unique properties make it an indispensable material for producing high-integrity, defect-free castings from both ferrous and non-ferrous metals.
This premium-grade chromite sand is characterized by its excellent thermal conductivity, which promotes rapid and uniform cooling of castings. This significantly reduces the risks of veining, penetration, and burn-on defects, leading to superior surface finish and dimensional accuracy. Furthermore, its high fusion point and exceptional resistance to thermal shock ensure stability even when in contact with high-temperature molten metals, preventing sintering and minimizing mold wall movement.
Origin: South Africa
CHEMICAL&PHYSICAL PROPERTIES OF Chromite sand AFS50 for metallurgical sector
| 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 | 2.5-3g/cm3 |
| 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 | 2.6g/cm3 |
| Sintering point | > 1,800℃ |
| Melting temperature | 2,180℃ |
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