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This product is a square corundum (high-alumina) honeycomb ceramic designed for high-temperature heat-recovery sections that also require a visible/decorative ceramic face—for example, heating equipment with exposed panels, high-temp burner boxes, glass/ceramic kilns, or RTO/RCO units built in square modules. Compared with cordierite, the corundum body runs safely at higher temperatures (up to 1400 °C), keeps its shape better and offers a denser, cleaner surface that can be left natural or coated. It is a good choice for B2B equipment makers who want both heat-storage efficiency and a presentable ceramic panel.
High-temperature capability – corundum body suitable for 1300–1400 °C segments, close to furnace/burner zones.
Square, easy-to-pack format – 150×150 mm panels can be stacked to form heat-recovery walls or boxes.
Decorative ceramic surface – denser than cordierite, better appearance for visible or semi-visible hot areas.
Good heat-exchange structure – honeycomb channels 30–35% open area support air/gas heat pick-up.
Durable under long hot service – higher hot-strength helps keep CO/NOₓ indicators stable.
| Category / Item | Unit / Description | Value |
|---|---|---|
| Material & Form | ||
| Material | — | Corundum / high-alumina honeycomb ceramic |
| Shape | — | Square / monolithic panel or block |
| Thermal Properties | ||
| Max working temperature | °C | ≤ 1400 |
| Start of softening | °C | 1400 – 1450 |
| Thermal shock resistance | Rapid cool ΔT | ≈ 200 K |
| Linear thermal expansion (20–1000 °C) | ×10⁻⁶ /K | 4.5 – 5.0 |
| Physical / Structural | ||
| Solid density | g/cm³ | 2.3 – 2.6 |
| Water absorption | % | ≤ 0.5 |
| Cell size / CPSI | mm / customizable | 1.2 – 1.6 mm, 64–300 CPSI |
| Open area | % | 30 – 35 |
| Mechanical & Safety | ||
| Compressive strength (longitudinal) | MPa | > 25 |
| Compressive strength (transverse) | MPa | > 12 |
| Emission index (CO) | ppm | ≤ 80 |
| Emission index (NOₓ) | ppm | ≤ 10 |
| Dimension & Customization | ||
| Standard section size | mm | 150 × 150 (square) |
| Length / thickness | mm | 25 – 300 (customizable) |
Square-module RTO/RCO heat-recovery beds working above cordierite temperatures
Furnace, kiln, glass or ceramic heater fronts where the panel is visible and must stay flat and clean
High-temp burner boxes and combustion chambers that need both heat-storing ceramic and a neat ceramic front
Energy-saving retrofits of hot-air or process-gas systems that currently use low-temp honeycombs
Equipment with architectural / industrial design needs (lab heaters, pilot lines, exhibition-type furnaces) that want a high-grade ceramic grid, not bare metal
Base panel for high-temp coating or coloring to match the customer’s brand/equipment color system
Q1: When should I choose this corundum version instead of cordierite?
Choose it when your heat-recovery or exhaust section runs nearer 1300–1400 °C, or when the panel is visible and must keep a smooth ceramic face.
Q2: Can this square panel be used vertically in a heat-recovery box?
Yes. The square monolith is intended for stacked/arrayed installation in vertical or horizontal heat-recovery chambers.
Q3: Can we coat or glaze the front for better color?
Yes. The denser corundum surface accepts high-temp decorative or protective coatings—tell us your firing temperature.
Q4: Can you match our existing 150×150 × (X) mm size?
Yes. 150×150 mm is standard; thickness/length can be 25–300 mm to drop into your existing cassette.
Q5: Do you provide stable OEM supply?
Yes. Hunan Zhonghong New Material supplies corundum square honeycomb ceramics for high-temp heat-recovery, burner, kiln and RTO/RCO equipment manufacturers.
This product is a square corundum (high-alumina) honeycomb ceramic designed for high-temperature heat-recovery sections that also require a visible/decorative ceramic face—for example, heating equipment with exposed panels, high-temp burner boxes, glass/ceramic kilns, or RTO/RCO units built in square modules. Compared with cordierite, the corundum body runs safely at higher temperatures (up to 1400 °C), keeps its shape better and offers a denser, cleaner surface that can be left natural or coated. It is a good choice for B2B equipment makers who want both heat-storage efficiency and a presentable ceramic panel.
High-temperature capability – corundum body suitable for 1300–1400 °C segments, close to furnace/burner zones.
Square, easy-to-pack format – 150×150 mm panels can be stacked to form heat-recovery walls or boxes.
Decorative ceramic surface – denser than cordierite, better appearance for visible or semi-visible hot areas.
Good heat-exchange structure – honeycomb channels 30–35% open area support air/gas heat pick-up.
Durable under long hot service – higher hot-strength helps keep CO/NOₓ indicators stable.
| Category / Item | Unit / Description | Value |
|---|---|---|
| Material & Form | ||
| Material | — | Corundum / high-alumina honeycomb ceramic |
| Shape | — | Square / monolithic panel or block |
| Thermal Properties | ||
| Max working temperature | °C | ≤ 1400 |
| Start of softening | °C | 1400 – 1450 |
| Thermal shock resistance | Rapid cool ΔT | ≈ 200 K |
| Linear thermal expansion (20–1000 °C) | ×10⁻⁶ /K | 4.5 – 5.0 |
| Physical / Structural | ||
| Solid density | g/cm³ | 2.3 – 2.6 |
| Water absorption | % | ≤ 0.5 |
| Cell size / CPSI | mm / customizable | 1.2 – 1.6 mm, 64–300 CPSI |
| Open area | % | 30 – 35 |
| Mechanical & Safety | ||
| Compressive strength (longitudinal) | MPa | > 25 |
| Compressive strength (transverse) | MPa | > 12 |
| Emission index (CO) | ppm | ≤ 80 |
| Emission index (NOₓ) | ppm | ≤ 10 |
| Dimension & Customization | ||
| Standard section size | mm | 150 × 150 (square) |
| Length / thickness | mm | 25 – 300 (customizable) |
Square-module RTO/RCO heat-recovery beds working above cordierite temperatures
Furnace, kiln, glass or ceramic heater fronts where the panel is visible and must stay flat and clean
High-temp burner boxes and combustion chambers that need both heat-storing ceramic and a neat ceramic front
Energy-saving retrofits of hot-air or process-gas systems that currently use low-temp honeycombs
Equipment with architectural / industrial design needs (lab heaters, pilot lines, exhibition-type furnaces) that want a high-grade ceramic grid, not bare metal
Base panel for high-temp coating or coloring to match the customer’s brand/equipment color system
Q1: When should I choose this corundum version instead of cordierite?
Choose it when your heat-recovery or exhaust section runs nearer 1300–1400 °C, or when the panel is visible and must keep a smooth ceramic face.
Q2: Can this square panel be used vertically in a heat-recovery box?
Yes. The square monolith is intended for stacked/arrayed installation in vertical or horizontal heat-recovery chambers.
Q3: Can we coat or glaze the front for better color?
Yes. The denser corundum surface accepts high-temp decorative or protective coatings—tell us your firing temperature.
Q4: Can you match our existing 150×150 × (X) mm size?
Yes. 150×150 mm is standard; thickness/length can be 25–300 mm to drop into your existing cassette.
Q5: Do you provide stable OEM supply?
Yes. Hunan Zhonghong New Material supplies corundum square honeycomb ceramics for high-temp heat-recovery, burner, kiln and RTO/RCO equipment manufacturers.
