| Honeycomb ceramic substrate (Used in vehicle) 1、Honeycomb ceramic substrate (Used in petrol engine car) Automobile exhaust gases are conventionally purified with a catalyst supported on a ceramic body able to withstand high temperatures. The preferred catalyst support structure is a honeycomb configuration which includes a multiplicity of unobstructed parallel channels sized to permit gas flow and bounded by thin ceramic walls. The walls of these channels provide the surface for precious-metal catalysts that convert noxious emissions into carbon dioxide, nitrogen and water vapor. We can provide honeycomb ceramic substrate has been coated and non-coated precious-metal. A、Technical data of petrol vehicle honeycomb ceramic substrateParameters Unit standard typical data Cordierite crystal phase wt% ≥90 94 Coefficient of Thermal Expansion（20-800℃） cm/cm/℃ ≤1.8×10-6 ≤1.5×10-6 Thermal Stability（20-650℃） times ≥1 3 Soften Temperature ℃ ≥1420 1440 Compression Strength Lengthways MPa 16 16.9 Horizontal MPa 5 6.2 Specific Weight Kg/L 0.45-0.55 0.45-0.5 Porosity % 40-45 41 Water-absorbing rate % 23-25 23.8 B、Specification of catalyst carrier (straight hole)used in petrol engine carRotundity shape Ellipse shape Specification（mm） Number of channels (holes /square inch) Specification (mm) Number of channels (holes /square inch) Φ83×85 400 T146.8×77×86.4 400 Φ144×152.4 400 T120.6×80×152.4 400 Φ100×100 400 T169.7×80.7×76.2 400 Φ130×130 400 T144.8×81.3×152.4 400 Φ118×150 400 T144.8×81×76.2 400 Φ103×100 400 T169.7×80.7×101.6 400 Φ150×75 400 T144.8×81.3×100 300 Φ83×125 400 T127×63.5×107 300 Φ150×150 300 T144.8×81.3×70 300 Φ120×100 300 T144.8×81.3×150 300 Φ101.6×100 300 Race track shape Φ94×100 300 P120.65× 80.01×76.2 400 Φ85×70 300 P120.65× 80.01× 76.2 200 Φ93×76 200 P144×68×150 400 Φ118×76 200 P125×80×100 400 | 
