Chromite sand AFS60-65/AFS65-70 for Shell molding casting
Product Introduction of Chromite sand AFS60-65/AFS65-70 for Shell molding casting
Chromite sand AFS60-65/AFS65-70 for Shell molding casting is from at least 4 sieves granulate process. The raw sand is South African chromite sand, especially for foundry and casting. Chromium ore sand AFS60-65/AFS65-70 can replace silica sand as a coating sand process for alkali phenolic resin, furan resin, and other coating sand processes. It is used for alloy steel castings with high pouring temperature requirements, such as high manganese steel and molybdenum nickel alloy steel castings. Chromite sand resin-coated sand has higher sintering temperature and slag resistance.
Typical chemical composition of Chromite sand AFS60-65/AFS65-70 for Shell molding casting:
| Content | Guarantee value | Typical value |
| Cr2O3 | ≥46.0% | 46.5% |
| SiO2 | ≤1.0% | 0.4% |
| FeO | ≤26.5% | 26.3% |
| CaO | ≤0.3% | 0.2% |
| MgO | ≤10% | 9.8% |
| AL2O3 | ≤15.5% | 15.2% |
| P | ≤0.003% | 0.001% |
| S | ≤0.003% | 0.001% |
| Moisture (105°C) | ≤0.1% | 0.01% |
| Cr/Fe | 1.55:1 | 1.55:1 |
Typical physical properties of Chromite sand AFS60-65/AFS65-70 for Shell molding casting:
| Hardness: | Mohs:5.5-6 |
| Melting Point: | Sublimes at 2180 °C |
| Sintering point: | >1800°C |
| Specific Gravity: | 4.0-4.8 g/cm3 |
| Bulk density(LPD): | 2.5-3 g/cm3 |
| Turbidity (JTU) | 110 |
| Color: | Black |
| Grain shape | Sub-angular |
| PH Value | 7-9 |
| Percentage of free acid present in the sand: | 0% |
| The amount of the acid: | ≤2ML |
| Percentage of soil | ≤0.1 |
| Thermal conductivity | 0.63 W/M·K |
| Thermal expansion rate（1000℃） | 0.60% |
Sieve Analysis of Chromite sand AFS60-65/AFS65-70:
| Sieve Mesh | Percentage(%) |
| +40mesh(425um) | 3.60 |
| +50mesh(300um) | 7.00 |
| +70mesh(212um) | 28.50 |
| +100mesh(150um) | 37.60 |
| +140mesh(106um) | 18.90 |
| +200mesh(75um) | 4.40 |
| AFS | 69.51 |
Characteristics of Chromite sand AFS60-65/AFS65-70 for Shell molding casting:
- High sintering temperature and refractoriness.
- Good grain shape without sharp angles.
- High thermal conductivity.
- Low thermal expansion ratio.
- Low magnetics and turbidity.
Applications of Chromite sand AFS60-65/AFS65-70 for Shell molding casting:
- For casting technologies such as Sand casting, No-bake sand casting, RSC Shell molding casting, Investment casting, Lost foam casting, etc.
- Casting Iron, casting steel, High manganese steel, chromium steel, etc.
- Medium-size, large-size, and giant-size castings.
Production details of Chromite sand:
Packing of Chromite sand:
FAQ:
Q: Where are you located?
A: Our factory is located in a tariff-free Zone at Lianyungang port. So it will be convenient to export, our company is a professional supplier of chromite sand in China.
Q: What is your main market?
A: Our main market is local China and Asia-Pacific regions.
Q: What is the difference between your chromite sand and Original South Africa Chromite sand?
A: In our factory, we take production processes on original South Africa such as washing, magnetic removing, and sieving. So it is cleaner with fewer impurities and less magnetic content. The cleanness of chromite from us is just proper for the foundry industry. In the meantime, we will get a precise AFS size and make customized particle size distribution to the requirement.
Q: What is the MOQ?
A: No. We don’t have a limit on MOQ, but for a small quantity, the transportation cost would be high.
Q: Can you provide free samples?
A: Yes, free samples within 25 kgs are available. You only have to bear the express cost.
Q: What is the delivery time for one container?
A: What is your capacity each year?
Q: Our capacity per year is 2500-3000 tons.
A: Generally the lead time of FCL is 7-10 days. A bigger quantity will get a longer delivery time.
Q: What is the HS code of Chromite sand?
A: The chromite sand HS code is 2610000000.
Q: Do you get MSDS of chromite sand?
A: Yes. You can download it from our website or get it from our sales team.
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