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LCP vs. Synthetic Sapphire

LCP and synthetic sapphire belong to fundamentally different material chemistries. LCP is a polymeric material, while synthetic sapphire is ceramic. Therefore, their performance will be even more dissimilar than would be suggested by the difference in properties. There are 10 material properties with values for both materials. Properties with values for just one material (20, 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 LCP and the bottom bar is synthetic sapphire.

Metric UnitsUS Customary Units

Material Properties

Density, g/cm3 1.4 to 1.6
4.0
Elastic (Young's, Tensile) Modulus, GPa 11 to 24
450
Flexural Strength, MPa 160 to 320
1090
Melting Onset (Solidus), °C 280
2050
Specific Heat Capacity, J/kg-K 1020 to 1200
760
Stiffness to Weight: Axial, points 4.4 to 8.9
63
Stiffness to Weight: Bending, points 51 to 65
64
Strength to Weight: Axial, points 33 to 43
170
Strength to Weight: Bending, points 45 to 56
100
Tensile Strength: Ultimate (UTS), MPa 180 to 230
2470