Zirconia Ceramic Foam Filters
Ferro Fanavaran Ceram manufactures high-performance zirconia ceramic foam filters designed for the filtration of molten steel and high-temperature alloys. Made from high-purity zirconium oxide (ZrO₂), these filters feature a three-dimensional interconnected open-cell structure that effectively removes non-metallic inclusions and entrapped gases from molten metal.
With outstanding thermal stability, exceptional mechanical strength, and excellent chemical resistance, zirconia ceramic foam filters provide reliable performance under the most demanding foundry conditions, ensuring cleaner metal and superior casting quality.
Key Features
• Exceptional Thermal Resistance
Reliable performance at temperatures exceeding 1,700°C with outstanding thermal shock resistance.
• Superior Mechanical Strength
Excellent structural integrity and durability under severe casting conditions.
• Excellent Chemical Stability
Highly resistant to corrosion and chemical reactions with molten metals.
• Efficient Filtration
Effectively removes non-metallic inclusions and entrapped gases from molten metal.
Applications
• Carbon steel castings
• Stainless steel castings
• Alloy steel castings
• Nickel-based and cobalt-based superalloys
• High-temperature alloy castings
• Precision aerospace and industrial components
Benefits
• Improves casting quality by producing cleaner metal and smoother surface finishes.
• Reduces casting defects, internal porosity, and shrinkage-related imperfections.
• Enhances the mechanical properties and metallurgical consistency of cast components.
• Increases production efficiency while reducing scrap rates and manufacturing costs.
Technical Specifications
| Chemical Composition | PPI | Porosity (%) | Color | Application temperature | Bending Strength (MPa) | Compression Strength (MPa) | Bulk Density | Thermal Shock Resistance |
| ZrO2, SiO2 | 8-40 | 80-90% | Yellow | Max 1700°c | 1≤ | 2≤ | 0.7 ~ 1.25 g/cm3 | 1100°c (room temperature 6 times) |
Recommended Filter Capacity
| Dimensions (mm) | 10 PPI | |
| Capacity (kg) | Flow Rate (kg/sec) | |
| 40×40×15 | 39 | 1.7 |
| 40×40×22 | 39 | 1.7 |
| 50×50×22 | 55 | 2.6 |
| 75×50×22 | 72 | 39 |
| 75×75×22 | 80 | 5.7 |
| 100×100×22 | 120 | 9.8 |
| Dia 40×20 | 25 | 1.5 |
| Dia 50×20 | 46 | 2 |
| Dia 60×20 | 69 | 2.9 |
| Dia 70×20 | 94 | 3.9 |
| Dia 80×20 | 110 | 5 |

