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Beryllia vs. Monel 400

Beryllia and Monel 400 belong to fundamentally different material chemistries. Beryllia is a ceramic material, while Monel 400 is a metal. Therefore, their performance will be even more dissimilar than would be suggested by the difference in properties. There are 15 material properties with values for both materials. Properties with values for just one material (23, 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 Monel 400.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 350
160
Poisson's Ratio 0.26
0.32
Shear Modulus, GPa 180
62
Tensile Strength: Ultimate (UTS), MPa 140
540 to 780

Thermal Properties

Maximum Temperature: Mechanical, °C 1750
1000
Specific Heat Capacity, J/kg-K 1050
430
Thermal Conductivity, W/m-K 270
23
Thermal Expansion, µm/m-K 8.0
14

Otherwise Unclassified Properties

Density, g/cm3 2.9
8.9

Common Calculations

Stiffness to Weight: Axial, points 67
10
Stiffness to Weight: Bending, points 82
21
Strength to Weight: Axial, points 14
17 to 25
Strength to Weight: Bending, points 21
17 to 21
Thermal Diffusivity, mm2/s 89
6.1
Thermal Shock Resistance, points 3.6
17 to 25