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Beryllia vs. ZA-12

Beryllia and ZA-12 belong to fundamentally different material chemistries. Beryllia is a ceramic material, while ZA-12 is a metal. Therefore, their performance will be even more dissimilar than would be suggested by the difference in properties. There are 16 material properties with values for both materials. Properties with values for just one material (25, in this case) are not shown. Please note that the two materials have significantly dissimilar densities. This means that additional care is required when interpreting the data, because some material properties are based on units of mass, while others are based on units of area or volume.

For each property being compared, the top bar is beryllia and the bottom bar is ZA-12.

Metric UnitsUS Customary Units

Mechanical Properties

Compressive (Crushing) Strength, MPa 1650
230 to 270
Elastic (Young's, Tensile) Modulus, GPa 350
83
Poisson's Ratio 0.26
0.26
Shear Modulus, GPa 180
33
Tensile Strength: Ultimate (UTS), MPa 140
260 to 400

Thermal Properties

Maximum Temperature: Mechanical, °C 1750
100
Specific Heat Capacity, J/kg-K 1050
450
Thermal Conductivity, W/m-K 270
120
Thermal Expansion, µm/m-K 8.0
24

Otherwise Unclassified Properties

Density, g/cm3 2.9
6.0

Common Calculations

Stiffness to Weight: Axial, points 67
7.6
Stiffness to Weight: Bending, points 82
24
Strength to Weight: Axial, points 14
12 to 19
Strength to Weight: Bending, points 21
15 to 20
Thermal Diffusivity, mm2/s 89
43
Thermal Shock Resistance, points 3.6
9.4 to 14