Metallic vs. Ceramic

Open Frontal Area
Open Frontal Area
Pressure Drop
Pressure Drop
Geometric surface area
Geometric surface area
Thremal conductivity
Thremal conductivity
Thermal Expansion
Thermal Expansion
Turbulent Flow
Turbulent Flow
Wall thickness
Wall thickness

Metallic vs Ceramic Catalyst Substrates

Engineers prefer metallic, Coating companies prefer ceramic. Ceramic substrates have been the choice for catalyst coating companies for decades. Why? Automotive OEM’s predominately utilize these parts due to their lower component costs. Many coating companies will suggest ceramic to avoid production line change overs from ceramic to metallic. In small sizes, under 6”OD, the ceramic is usually more cost effective per piece over the metallic, but due to difficulty in packaging ceramic and extra processes required the metallic total system cost often is more advantageous. In sizes larger than 6”OD metallic substrates are competitive with ceramic and sizes larger than 10” metallic’s have a lower cost.