Chromite sand Cr2O3 46% for foundry material
Chromite sand ,it’s main chemical composition is Cr2O3(chromic oxide), This kind of sand heating volume is stable , High thermal conductivity , sand molten metal contact , not only has a good alkali slag resistance , not with iron oxide and other chemical reaction , and itself has the characteristics of solid phase sintering , can well prevent the penetration of molten metal , avoid sand defects , suitable for all kinds of stainless steel , Alloy steel and carbon steel gradually modeling core sand and paint .
| Item | 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 | 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 | 2.6g/cm³ |
| sintering point | > 1800°C |
| melting temperature | 2180°C |
Application:
Chromite Sand in the foundry industry
Its properties enable the material to be used in high duty grey iron and steel foundries as core and mould making sand.
Chromite Sand in the steel industry
In steel production, Chromite Sand is used as well filler for protection of the sliding gate in large steel holding ladles.
Chromite Sand in the glass industry
When ground to a fine flour, Chromite Sand is used for the production of green glass beverage containers and beer bottles.
Packing&Delivery
Packing : 1000kg/bag+ One openings+Two rings 1000kg/bag+ One openings+Four rings
1000kg/bag+ Two openings+Two rings 1000kg/bag+ Two openings+Four rings
