Diameter 80x22mm PPI20 Zirconium Oxide Ceramic Foam Filter for Steel and Nickel Alloy Casting

Zirconium Oxide Ceramic Foam Filter, Diameter 80mm, Thickness 22mm, Porosity PPI20, for Steel and Nickel Alloy Casting.

• Material: Zirconia (ZrO₂), max service temperature 1700°C

• Pore Density: 20 PPI

• Dimensions: 80 mm diameter × 22 mm thickness (round disc)

• Structure: Open‑cell reticulated foam

• Core Functions: Removes finer non‑metallic inclusions, oxides, slag, and refractory fragments from molten steel and nickel alloys; reduces turbulence and gas entrapment

• Primary Applications: Carbon steel, alloy steel, stainless steel, nickel‑based superalloys (Inconel, Hastelloy, Monel), and high‑temperature alloys

Foundrymax Round Ø80×22mm / 20PPI Zirconium Oxide Ceramic Foam Filter for Steel and Nickel Alloy Casting

Foundrymax offers the Ø80×22mm zirconia ceramic foam filter with a 20 PPI pore structure, specifically engineered for foundries casting steel and nickel‑based superalloys. This round disc filter combines the high‑temperature resilience of zirconia with a finer pore density, delivering enhanced inclusion removal for demanding alloy applications.

Zirconia – Engineered for High‑Performance Alloys

Zirconia (ZrO₂) is the material of choice for high‑temperature alloy casting. Zirconia maintains its structural integrity up to 1700°C, resisting erosion from aggressive slags and molten metal. This is particularly critical for nickel‑based superalloys, where even minor contamination can compromise mechanical properties and corrosion resistance. 

The 20 PPI pore structure offers a finer filtration grade than 10 PPI. This makes it particularly suitable for applications where higher melt cleanliness is required. The finer pores capture smaller inclusions – including fine oxide films and refractory particles – while the open‑cell reticulated network maintains adequate flow permeability for steel and nickel alloy melts. This balance of filtration precision and flow capacity is especially valuable for critical components such as turbine housings, valve bodies, and aerospace‑grade parts.

Round Format – A Standard Choice for Sprue Placement

The 80mm diameter round format fits neatly into standard sprue wells and pouring cups, making it a practical choice for foundries with round gating components. The 22mm thickness provides mechanical strength to withstand placement, and the static pressure of molten metal during pouring, without adding unnecessary bulk.

Why Foundrymax for This Zirconia Filter?

As a direct manufacturer, we produce this Ø80×22 size with 20 PPI to order, maintaining consistent pore uniformity and dimensional precision. Alternative pore densities (10, 20, 30 PPI) and thickness variations (15mm, 20mm, 25mm) are available upon request. Our technical team can advise on the optimal filter specification for your specific steel grade, nickel alloy composition, and casting geometry.

Contact Foundrymax to discuss your high‑performance alloy filtration requirements or request a sample for evaluation.