Wollastonite vs. Steatite

Both wollastonite and steatite are oxide-based engineering ceramics. There are 7 material properties with values for both materials. Properties with values for just one material (16, in this case) are not shown.

For each property being compared, the top bar is wollastonite and the bottom bar is steatite.

Wollastonite Steatite

Metric UnitsUS Customary Units

Material Properties

Compressive (Crushing) Strength, MPa		260
Compressive (Crushing) Strength, MPa		540 to 620

Density, g/cm³		2.8
Density, g/cm³		1.9 to 2.8

Dielectric Constant (Relative Permittivity) At 1 MHz		3.5
Dielectric Constant (Relative Permittivity) At 1 MHz		5.7 to 6.5

Dielectric Strength (Breakdown Potential), kV/mm		6.0
Dielectric Strength (Breakdown Potential), kV/mm		7.9 to 16

Flexural Strength, MPa		100
Flexural Strength, MPa		32 to 150

Maximum Temperature: Mechanical, °C		1200
Maximum Temperature: Mechanical, °C		750 to 1230

Thermal Conductivity, W/m-K		0.8
Thermal Conductivity, W/m-K		1.8 to 2.5

Wollastonite vs. Steatite

Material Properties

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