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IEC 60672 Type C-511 Cordierite Refractory

C-511 cordierite refractory is a grade of cordierite. The graph bars on the material properties cards below compare C-511 cordierite refractory 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

420 MPa 61 x 103 psi

Elastic (Young's, Tensile) Modulus

62 GPa 8.9 x 106 psi

Flexural Strength

27 MPa 3.9 x 103 psi

Fracture Toughness

2.0 MPa-m1/2 1.8 x 103 psi-in1/2

Tensile Strength: Ultimate (UTS)

190 MPa 28 x 103 psi

Thermal Properties

Maximum Temperature: Mechanical

1150 °C 2100 °F

Maximum Thermal Shock

290 °C 550 °F

Specific Heat Capacity

800 J/kg-K 0.19 BTU/lb-°F

Thermal Conductivity

1.6 W/m-K 0.9 BTU/h-ft-°F

Thermal Expansion

4.8 µm/m-K

Other Material Properties

Density

2.0 g/cm3 120 lb/ft3

Dielectric Constant (Relative Permittivity) At 1 MHz

4.7

Dielectric Strength (Breakdown Potential)

7.7 kV/mm 0.3 V/mil

Electrical Resistivity Order of Magnitude

9.5 10x Ω-m

Common Calculations

Stiffness to Weight: Axial

17 points

Stiffness to Weight: Bending

67 points

Strength to Weight: Axial

27 points

Strength to Weight: Bending

38 points

Thermal Diffusivity

1.0 mm2/s

Thermal Shock Resistance

47 points

Followup Questions

Further Reading

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