Beryllia vs. High-alumina Refractory

Both beryllia and high-alumina refractory are oxide-based engineering ceramics. There are 7 material properties with values for both materials. Properties with values for just one material (15, in this case) are not shown.

For each property being compared, the top bar is beryllia and the bottom bar is high-alumina refractory.

Beryllia (Beryllium Oxide, BeO)High-Alumina Refractory (IEC 60672 Type C-510)

Metric UnitsUS Customary Units

Material Properties

Density, g/cm³		2.9
Density, g/cm³		2.1

Flexural Strength, MPa		240
Flexural Strength, MPa		28

Maximum Temperature: Mechanical, °C		1750
Maximum Temperature: Mechanical, °C		1200

Specific Heat Capacity, J/kg-K		1050
Specific Heat Capacity, J/kg-K		800

Thermal Conductivity, W/m-K		270
Thermal Conductivity, W/m-K		1.5

Thermal Diffusivity, mm²/s		89
Thermal Diffusivity, mm²/s		0.87

Thermal Expansion, µm/m-K		8.0
Thermal Expansion, µm/m-K		4.3

Beryllia vs. High-alumina Refractory

Material Properties

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