Zirconia Ceramic Foam Filter

Zirconia Ceramic Foam Filter (ZrO₂ Series)

Crafted from high-purity zirconia (ZrO₂), this ceramic foam filter represents the pinnacle of high-temperature casting filtration. With a maximum operating temperature of 1700°C, it is specifically engineered for molten steel and high-temperature alloy filtration — where no other filter material can match its thermal resistance and structural integrity.

Applications

• Molten steel and steel alloy casting
• High-temperature alloy and superalloy casting
• Investment casting and precision casting of steel components
• Removes non-metallic inclusions, slag, and oxides from molten steel

Advantages

• Highest operating temperature of any ceramic foam filter — up to 1700°C
• High porosity (≥76%) ensures efficient filtration with minimal flow resistance
• Superior compressive strength (≥1.2 MPa) — withstands high metallostatic pressure
• Excellent thermal shock resistance (≥2 cycles at 1100°C)
• High-temperature bending strength ≥0.6 MPa at 1200°C
• Characteristic yellow color for easy identification on the production line
• Custom shapes, sizes, and PPI available on request

Technical Specifications

• Material: Zirconia (ZrO₂)
• Color: Yellow
• Max operating temperature: ≤1700°C
• Hole density (PPI): 6–30 PPI (pores per inch)
• Porosity: ≥76%
• Compressive strength: ≥1.2 MPa
• Bulk density: 0.4–0.85 g/cm³
• Thermal shock resistance: ≥2 times/1100°C
• High-temp bending strength (1200°C): ≥0.6 MPa

Custom shapes, sizes, and PPI density available upon request. Complies with China National Standard GB/T 25139-2010.