Zircon Sand is a natural mineral and is mined in the USA. Stockpiles of Zircon Sand are maintained in order to assure consistent high quality and reliable supply of different grades for various industries.
Uses and features of Zircon Sand
| Application |
Features |
| Sand molds and cores Metal chills |
- Resists metal penetration and “burn in”
- Low thermal expansion aids dimensional accuracy
- Resists metal reaction with most alloys
- Reduced cleaning and machining
- Low binder requirement
- High thermal conductivity
|
| Prime coat slurry |
- Excellent casting surface
- Low reactivity with alloys
|
| Back-up slurry and stucco |
- Exhibits non-wetting surface to molten metals
- Low thermal expansion
|
| Cores |
- Excellent refractory properties
|
| Shell molds |
|
Available Sizes
Paticle size analysis is available upon request.
Technical Specifications (%)
| Symbol |
Name |
Percentage |
| Fe2O3 | Guaranteed |
0.075 max |
| (total iron as Fe2O3) |
Typical |
0.04 – 0.07 |
| TiO2 | Guaranteed |
0.15 max |
|
Typical |
0.06 – 0.15 |
| ZrO2+HfO2 | Typical |
66.0 – 67.0 |
| Al2O3 | Typical |
0.20 – 0.70 |
| CaO | Typical |
0.01 – 0.04 |
| P2O5 | Typical |
0.06 – 0.10 |
| SiO2 | Typical |
32.0 – 34.0 |
| Free Silica | Typical |
0.01 – 0.07 |
| pH | Typical |
5.5 – 7.00 |
| Moisture | Typical |
0.01 – 0.07 |
Characteristics:
| Specific gravity | 4.7 |
| Bulk density | 170 – 180 lb/ft³ (2700 kg/m³) |
| Hardness | 7.5 Mohs |
| Angle of repose | 30° |
| Melting point | 4000° F (2200° C) |
| Thermal stability | no change to 3090° F (1700°C) |
| Loss on ignition | 0.02 – 0.12% |
Packaging:
- 50 lb paper bags
- 3000 lb Super Sacs
- Bulk (blower truck or rail hopper cars)
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