# Low Voltage Steatite (IEC 60672 Type C-210)

C-210 steatite is a grade of steatite. The graph bars on the material properties cards below compare C-210 steatite 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.

## Thermal Properties

Maximum Temperature: Mechanical

1200 *°C* 2190 *°F*

Maximum Thermal Shock

90 *°C* 190 *°F*

Specific Heat Capacity

850 *J/kg-K* 0.2 *BTU/lb-°F*

Thermal Conductivity

1.8 *W/m-K* 1.0 *BTU/h-ft-°F*

Thermal Expansion

7.0 *µm/m-K*

## Electrical Properties

Dielectric Constant (Relative Permittivity) At 1 Hz

6.0

Dielectric Constant (Relative Permittivity) At 1 MHz

6.5

Dielectric Strength (Breakdown Potential)

7.9 *kV/mm* 0.31 *V/mil*

Electrical Dissipation At 1 Hz

0.022

Electrical Dissipation At 1 MHz

0.0060

Electrical Resistivity Order of Magnitude

10 *10 ^{x} Ω-m*

## Other Material Properties

Density

2.6 *g/cm ^{3}* 160

*lb/ft*

^{3}Elastic (Young's, Tensile) Modulus

68 *GPa* 9.9 *x 10 ^{6} psi*

Flexural Strength

90 *MPa* 13 *x 10 ^{3} psi*

Tensile Strength: Ultimate (UTS)

220 *MPa* 32 *x 10 ^{3} psi*

## Common Calculations

Stiffness to Weight: Axial

14 *points*

Stiffness to Weight: Bending

52 *points*

Strength to Weight: Axial

23 *points*

Strength to Weight: Bending

31 *points*

Thermal Diffusivity

0.79 *mm ^{2}/s*

Thermal Shock Resistance

33 *points*

## Followup Questions

## Further Reading

ASTM C242: Standard Terminology of Ceramic Whitewares and Related Products

Ceramics and Composites: Processing Methods, Narottam P. Bansal and Aldo R. Boccaccini (editors), 2012

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