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Monel 400 vs. Silicone Plastic

Monel 400 and silicone plastic belong to fundamentally different material chemistries. Monel 400 is a metal, while silicone plastic is a polymeric material. Therefore, their performance will be even more dissimilar than would be suggested by the difference in properties. There are 12 material properties with values for both materials. Properties with values for just one material (24, 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 Monel 400 and the bottom bar is silicone plastic.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 160
9.0
Tensile Strength: Ultimate (UTS), MPa 540 to 780
38

Thermal Properties

Specific Heat Capacity, J/kg-K 430
850
Thermal Conductivity, W/m-K 23
0.35
Thermal Expansion, µm/m-K 14
35

Otherwise Unclassified Properties

Density, g/cm3 8.9
1.9

Common Calculations

Stiffness to Weight: Axial, points 10
2.6
Stiffness to Weight: Bending, points 21
36
Strength to Weight: Axial, points 17 to 25
5.5
Strength to Weight: Bending, points 17 to 21
13
Thermal Diffusivity, mm2/s 6.1
0.22
Thermal Shock Resistance, points 17 to 25
8.5