Foundry ceramic sand for core making AFS45 AFS50 AFS55 AFS60
【Product Name】: Foundry cemamic sand
【Other Name】: Ceramsite sand, Ceramic beads, Fused Bauxite beads for foundry, Castball, etc.
【CAS code】:1344-28-1
Foundry ceramic sand for core making AFS45 AFS50 AFS55 AFS60 is a superior casting sand for steel and non-ferrous alloy castings. This type of casting sand is made from fusing and blowing process of bauxite ore at high temperature of 2000 degree. As a refractory material based on alumina, ceramic sand obtains excellent refractory performance. In the meantime, the spherical casting sand make it get advantage of low angularity, higher surface area, and easy to fill into the molding. Ceramic sand gets lower thermal expansion so that it can resist melting iron, steel and other alloys.
Foundry ceramic sand is specialized in core making in molding process, no bake sand casting, resin coated sand casting, etc.
Product Feature of Foundry ceramic sand for core making AFS45 AFS50 AFS55 AFS60：
- High thermal resistance and chemical insert.
- Low thermal expansion rate.
- Good flowability and low angularity coefficient.
- High mechanical strength.
- Dry sand with Low humidity.
- Spherical shape makes it easy to clean with good air permeability.
- Recyclable.
- Reduce resin amount than angular shape sand.
Specification:
| Spec. | 200# | 300# | 400# | 500# | 600# | 650# | 750# | 1000# | 1250# | 1500# | |
| Mesh Range | 20-40# | 30-50# | 40-70# | 50-100# | 70-140# | 50-140# | 70-200# | 100-200# | 100-270# | 140-270# | |
| Mesh size(um) | Mesh No. | ||||||||||
| 1700 | 12 | ||||||||||
| 1180 | 16 | ≤5 | |||||||||
| 850 | 20 | 10-30 | ≤5 | ||||||||
| 600 | 30 | 30-50 | 10-30 | ≤5 | ≤3 | ||||||
| 425 | 40 | 15-35 | 30-50 | 15-35 | ≤15 | ≤8 | ≤10 | ||||
| 300 | 50 | ≤5 | 15-35 | 35-55 | 25-40 | 10-25 | 10-30 | ≤10 | |||
| 212 | 70 | ≤5 | 0-15 | 25-45 | 20-40 | 30-50 | 5-25 | ≤3 | ≤2 | ||
| 150 | 100 | ≤2 | ≤7 | 10-20 | 20-40 | 15-35 | 25-45 | 10-30 | 0-20 | ≤5 | |
| 106 | 140 | ≤5 | ≤10 | ≤15 | 0-20 | 20-40 | 35-55 | 30-50 | 5-25 | ||
| 75 | 200 | ≤5 | ≤7 | ≤5 | ≤15 | 15-35 | 25-45 | 40-60 | |||
| 53 | 270 | ≤2 | ≤2 | ≤5 | ≤10 | 0-20 | 25-40 | ||||
| Pan | ≤1 | ≤1 | ≤2 | ≤5 | ≤8 | ≤15 | |||||
| AFS Value | AFS15-25 | AFS25-35 | AFS35-45 | AFS45-55 | AFS60-70 | AFS55-65 | AFS75-85 | AFS105-115 | AFS125-135 | AFS160-170 | |
Typical chemical composition of Foundry ceramic sand for core making AFS45 AFS50 AFS55 AFS60:
| Item | Standard Value | Typical Value |
| Al2O3 | 70-72 | 70.65 |
| SiO2 | 10-25 | 21.87 |
| Fe2O3 | ≤3 | 2.40 |
| TiO2 | ≤3.5 | 3.32 |
| K2O | ≤1.5 | 1.20 |
| CaO | ≤0.45 | 0.28 |
| MgO | ≤0.35 | 0.32 |
| Na2O | ≤0.10 | 0.08 |
Typical physical properties of Foundry ceramic sand for core making AFS45 AFS50 AFS55 AFS60:
| Refractoriness | ≥1800 °C |
| Mohs hardness | 6.5-7.5 |
| Specific gravity: | 3.4g/cm3 |
| Bulk density(LPD): | 1.95-2.05 g/cm3 |
| Color: | black brown |
| Grit shape: | spherical Ball |
| PH value | 7.3 |
| Thermal expansion coefficient | 6×10-6 /°C(20-1000°C) |
| Thermal conductivity | 0.698W/M.K(1200°C) |
| Thermal expansion ratio | 0.13%(10 min at 1000°C) |
| coefficient of angularity | ≤1.1 |
| Roundness | Min 95% |
Applications：
- Work with resins such as the furnace, Alkaline-phenolic, water glass for core making.
- High alloy cast steel and carbon steel.
- Low carbon steel and stainless steel valve parts.
- Stainless steel, manganese steel, high chromium cast iron.
-
Product details of Foundry ceramic sand for core making AFS45 AFS50 AFS55 AFS60
-
Package
- 1Metric Ton/Jumbo Bag
- 25KGS/PVC Bag,40 Bags/Pallet
- Other customized packages are available
-
FAQ:
Q: Are you a manufacturer?
A: Yes, Our factory was founded in 1999. We are an experienced manufacturer of foundry ceramic sand.
Q: What are the key quality indexes of ceramic foundry sand?
A: First of all, the Al2O3 content. We have three grade:75% Al2O3 ceramic sand,73% Al2O3 ceramic sand,70 Al2O3 ceramic sand.
Secondly, the particle size distribution of ceramic sand. We will provide samples according to the customer’s requirements. And make the same particle percentage coincide with confirmed sand.
Q: Where is the nearest port from your factory?
A: Qingdao and Tianjin are both near to us.
Q: What is the HS code of ceramsite sand?
A: Since there is no specific HS code for ceramsite sand, there are HS codes 69149000 and 68159990 suitable for exporting ceramsite sand. But with our experience, HS code 68159990 is easier to do custom clearance with no risk to be inspected.
Q: How do you operate the QC system?
A: Before shipment, we will take 1 day to check the chemical composition for every bag. Our QC staff will take another day to check particle size distribution for every bag. We will reserve samples from each batch production in case there is anything wrong.
Q: What is the lead time for each order?
A: It depends on the quantity and sand size required. Generally 5-10 days for FCL(20-25MT).
