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PVC-P vs. Grade 18 Titanium

PVC-P and grade 18 titanium belong to fundamentally different material chemistries. PVC-P is a polymeric material, while grade 18 titanium is a metal. Therefore, their performance will be even more dissimilar than would be suggested by the difference in properties. There are 16 material properties with values for both materials. Properties with values for just one material (25, 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 grade 18 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 1.4
110
Elongation at Break, % 180
11 to 17
Poisson's Ratio 0.39
0.32
Tensile Strength: Ultimate (UTS), MPa 16
690 to 980

Thermal Properties

Maximum Temperature: Mechanical, °C 75
330
Melting Onset (Solidus), °C 190
1590
Specific Heat Capacity, J/kg-K 1400
550
Thermal Conductivity, W/m-K 0.17
8.3
Thermal Expansion, µm/m-K 160
9.9

Otherwise Unclassified Properties

Density, g/cm3 1.4
4.5

Common Calculations

Stiffness to Weight: Axial, points 0.57
13
Stiffness to Weight: Bending, points 28
35
Strength to Weight: Axial, points 3.2
43 to 61
Strength to Weight: Bending, points 10
39 to 49
Thermal Diffusivity, mm2/s 0.090
3.4
Thermal Shock Resistance, points 4.9
47 to 67