Cordierite Ceramics have excellent thermal shock properties. Our Cordierite products are low cost materials having good mechanical strength, good electrical insulation properties, good wear resistance and can function at safe operating temperatures up to 1000 C. Typical applications include, but are not limited to, electric heating elements, igniters, resistors, stand offs, band heaters, thermocouple cores, load banks, ovens, furnaces, connectors, spacers, fuses, gas grill radiants, sensors, stiffening rods, welding backers, welding ferrules.
Mechanical, Electrical, Thermal and Physical Properties
| Material Grade | Cordierite |
| Physical Properties | |
| Water Absorption (%) | 10 |
| Density (g/cc) | 2 |
| Color | Tan |
| Mechanical Properties | |
| Flexural Strength (1K PSI) | 14 |
| Compressive Strength (1K PSI) | 70 |
| Tensile Strength (1K PSI) | 7 |
| Hardness (Moh’s Scale) | 7 |
| Impact Resistance (Inch-Lbs.) | 4.5 |
| Electrical Properties | |
| Dielectric Strength (Volts/Mil) | 180 |
| Dielectric Constant (@1MHz) | 6 |
| Volume Resistivity 25 C (ohms-cm) | >1E14 |
| Loss Index (@1MHz) | 0.048 |
| Thermal Properties | |
| C.O.T.E. (20-650 C) | 2.9 x 10-6 |
| Safe Operating Temperature (C) | 1100 |
| Thermal Conductivity (W/m-C) | 3.4 |
| Note: This information is for design guidance only. Du-Co will not guarantee this information as absolute values. Various geometries can affect properties | |