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Ceramic Honeycomb Substrates

Flow Through Substrates Cell Density/Wall Thikness Material CTE
(x 10-6/ºC, RT-800 ºC)
Porosity %
Standard Wall Substrate 300/13 Cordierite 1.0 (1.25 max) 35
Standard Wall Substrate 400/7 Cordierite 1.0 (1.25 max) 35
Standard Wall Substrate 300/8 Cordierite 1.0 (1.25 max) 35
Thin Wall Substrate 350/5.5 Cordierite 1.0 (1.25 max) 35
Thin Wall Substrate 400/4 Cordierite 1.0 (1.25 max) 35
Thin Wall Substrate 600/4 Cordierite 1.0 (1.25 max) 35
Ultra Thin Wall Substrate 600/3 Cordierite 1.0 (1.25 max) 35
Ultra Thin Wall Substrate 900/2 Cordierite 1.0 (1.25 max) 35

Ceramic Flow-Through Substrates (Honeycomb Monoliths) Ceramic Substrates are extruded honeycomb monoliths containing thousands of parallel channels. The channel walls are then coated with precious metals (PGM) catalysts that convert noxious emissions into less harmful gases and water vapor. Ceramic substrates are used at the heart of catalytic converters to help reduce exhaust emissions from diesel and gasoline-powered engines.

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Advanced Engineering
Our Cordierite Ceramic Substrates are crucial components influencing performance, robustness, and durability of catalytic converter systems by offering:
     – High surface area
     – Low pressure drop
     – Rapid light-off
     – Thermal-mechanical durability
     – Coating "Washcoat" Compatibility
     – System cost efficiency

Synthetic cordierite is a magnesium-alumino-silicate ceramic material, which meets each of these requirements. Practically all of today's ceramic monolithic catalyst substrates are made of cordierite.

High Temperature Durability
Exhaust gases can reach extreme temperatures and are highly variable, producing thermal stresses within the converter. The ceramic composition used in our substrates is highly resistant to thermal shock resulting from sudden and severe temperature changes. In addition, these advanced substrates can operate effectively at temperatures of 1200ºC and can withstand spikes of up to 1400 ºC.

Mechanical Durability
Cordierite Ceramic Substrates have proven mechanical durability. Their monolithic (single-piece) structure and cellular geometry promote stiffness and isostatic strength.

Ceramic Flow-Through Substrates (Honeycomb Monoliths) Thin-Wall & UltraThin-Wall Substrates
The higher geometric surface area of Thin-Wall & Ultrathin-Wall substrates contributes to lower emissions during steady-state catalytic converter operation. In addition, their lower mass facilitates quicker converter light off for more effective cold-start emissions reductions. With their thinner walls, Thin-Wall & UltraThin-Wall substrates also offer the option of improved pressure drop performance. Compared to a 600/4 thin-wall substrate, and Ultrathin-Wall 600/3 substrate delivers approximately the same geometric surface area with 10% lower pressure drop.

We offer substrates that are available in cell densities, diameters and lengths that are among the most diverse in the industry.