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PVC-P vs. Silicon Carbide

PVC-P and silicon carbide belong to fundamentally different material chemistries. PVC-P is a polymeric material, while silicon carbide is ceramic. 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 (17, 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 PVC-P and the bottom bar is silicon carbide.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 1.4
370 to 490
Poisson's Ratio 0.39
0.14 to 0.21
Tensile Strength: Ultimate (UTS), MPa 16
210 to 370

Thermal Properties

Maximum Temperature: Mechanical, °C 75
500 to 1590
Specific Heat Capacity, J/kg-K 1400
670 to 1180
Thermal Conductivity, W/m-K 0.17
120 to 170
Thermal Expansion, µm/m-K 160
4.0 to 4.5

Electrical Properties

Electrical Resistivity Order of Magnitude, 10x Ω-m 11
0.94 to 3.3

Otherwise Unclassified Properties

Density, g/cm3 1.4
3.0 to 3.2

Common Calculations

Stiffness to Weight: Axial, points 0.57
69 to 84
Stiffness to Weight: Bending, points 28
79 to 82
Strength to Weight: Axial, points 3.2
18 to 34
Strength to Weight: Bending, points 10
24 to 38
Thermal Diffusivity, mm2/s 0.090
38 to 79
Thermal Shock Resistance, points 4.9
6.9 to 18