Dense Cordierite Porcelain (IEC 60672 Type C-410)
C-410 cordierite porcelain is a grade of engineering porcelain. The graph bars on the material properties cards below compare C-410 cordierite porcelain to other oxide-based engineering ceramics (top) and the entire database (bottom). A full bar means this is the highest value in the relevant set. A half-full bar means it's 50% of the highest, and so on.
Mechanical Properties
Compressive (Crushing) Strength
590 MPa 86 x 103 psi
Elastic (Young's, Tensile) Modulus
75 GPa 11 x 106 psi
Flexural Strength
64 MPa 9.3 x 103 psi
Fracture Toughness
2.0 MPa-m1/2 1.8 x 103 psi-in1/2
Knoop Hardness
600
Poisson's Ratio
0.17
Rockwell R Hardness
60
Shear Modulus
34 GPa 4.9 x 106 psi
Tensile Strength: Ultimate (UTS)
130 MPa 19 x 103 psi
Electrical Properties
Dielectric Constant (Relative Permittivity) At 1 Hz
5.0
Dielectric Constant (Relative Permittivity) At 1 MHz
6.5
Dielectric Strength (Breakdown Potential)
11 kV/mm 0.43 V/mil
Electrical Dissipation At 1 Hz
0.023
Electrical Dissipation At 1 MHz
0.0062
Electrical Resistivity Order of Magnitude
9.0 10x Ω-m
Other Material Properties
Density
2.3 g/cm3 140 lb/ft3
Maximum Temperature: Mechanical
1170 °C 2130 °F
Maximum Thermal Shock
270 °C 510 °F
Specific Heat Capacity
1000 J/kg-K 0.24 BTU/lb-°F
Thermal Conductivity
1.9 W/m-K 1.1 BTU/h-ft-°F
Thermal Expansion
2.6 µm/m-K
Common Calculations
Stiffness to Weight: Axial
19 points
Stiffness to Weight: Bending
62 points
Strength to Weight: Axial
16 points
Strength to Weight: Bending
25 points
Thermal Diffusivity
0.84 mm2/s
Thermal Shock Resistance
47 points
Followup Questions
Further Reading
ASTM C242: Standard Terminology of Ceramic Whitewares and Related Products
IEC 60672-3: Ceramic and glass-insulating materials - Part 3: Specifications for individual materials
Springer Handbook of Condensed Matter and Materials Data, W. Martienssen and H. Warlimont (editors), 2005
CRC Materials Science and Engineering Handbook, 4th ed., James F. Shackelford et al. (editors), 2015