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ZA-12 vs. Beryllia

ZA-12 and beryllia belong to fundamentally different material chemistries. ZA-12 is a metal, while beryllia is a ceramic material. 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 ZA-12 and the bottom bar is beryllia.

Metric UnitsUS Customary Units

Mechanical Properties

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

Thermal Properties

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

Otherwise Unclassified Properties

Density, g/cm3 6.0
2.9

Common Calculations

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