CharacteristicsofDOC Ceramic substrate (Ceramic honeycomb) High surface area Excellent thermal-mechanical durability Low pressure drop Rapid light-off System cost efficiency Shape: round, triangular, oval (or elliptic), wide oval (or racetrack) Material: cordierite Parameters forDOC ceramicsubstrate ParametersMeasurementStandardTypical dataCordierite crystal phase Wt%≥9094Coefficient of Thermal Expansion(20-800) cm/cm/≤1.8*101.5*10Thermal Stability(20-650) Times≥13Soften Temperature ≥13601380Compression Strength A-axis Mpa1620B-axis Mpa158Specific Weight Kg/L0.45-0.550.45-0.5Porosity %40-4541Water-absorbing rate %23-2523.8Cell Densities and Sizes: Our substrates are available in a choice of cell densities and sizes to meet your needs. We can also produce according to customers specification. Specification for Pruiting's Cordierite DDOC&SCR SubstrateHole densityDimensionVolume(Liter)100CPSI200CPSI300CPSI400CPSIφ144*152.42.482φ150*1001.767φ165*1002.138φ170*1002.270φ190*1002.835φ190*152.44.321φ194.5*1002.971φ190*2005.670φ228*1004.083φ240*76.23.447φ240*1004.524φ286*1006.424