Engineering Porcelain vs. PVC-P
Engineering porcelain and PVC-P belong to fundamentally different material chemistries. Engineering porcelain is a ceramic material, while PVC-P is polymeric. Therefore, their performance will be even more dissimilar than would be suggested by the difference in properties. There are 18 material properties with values for both materials. Properties with values for just one material (18, in this case) are not shown.
For each property being compared, the top bar is engineering porcelain and the bottom bar is PVC-P.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 67 to 150 | |
| 1.4 |
| Poisson's Ratio | 0.17 | |
| 0.39 |
| Tensile Strength: Ultimate (UTS), MPa | 130 | |
| 16 |
Thermal Properties
| Maximum Temperature: Mechanical, °C | 1170 | |
| 75 |
| Specific Heat Capacity, J/kg-K | 600 to 1000 | |
| 1400 |
| Thermal Conductivity, W/m-K | 1.8 to 6.5 | |
| 0.17 |
| Thermal Expansion, µm/m-K | 2.0 to 6.6 | |
| 160 |
Electrical Properties
| Dielectric Constant (Relative Permittivity) At 1 Hz | 5.0 to 10 | |
| 5.8 |
| Dielectric Strength (Breakdown Potential), kV/mm | 11 to 25 | |
| 20 |
| Electrical Dissipation At 1 Hz | 0.0043 to 0.028 | |
| 0.12 |
| Electrical Resistivity Order of Magnitude, 10x Ω-m | 9.0 to 12 | |
| 11 |
Otherwise Unclassified Properties
| Density, g/cm3 | 2.3 to 3.0 | |
| 1.4 |
Common Calculations
| Stiffness to Weight: Axial, points | 16 to 29 | |
| 0.57 |
| Stiffness to Weight: Bending, points | 49 to 65 | |
| 28 |
| Strength to Weight: Axial, points | 12 to 16 | |
| 3.2 |
| Strength to Weight: Bending, points | 19 to 25 | |
| 10 |
| Thermal Diffusivity, mm2/s | 0.73 to 3.9 | |
| 0.090 |
| Thermal Shock Resistance, points | 11 to 53 | |
| 4.9 |