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Grade 5 Titanium vs. PPO

Grade 5 titanium and PPO belong to fundamentally different material chemistries. Grade 5 titanium is a metal, while PPO is a polymeric material. Therefore, their performance will be even more dissimilar than would be suggested by the difference in properties. There are 8 material properties with values for both materials. Properties with values for just one material (34, 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 grade 5 titanium and the bottom bar is PPO.

Metric UnitsUS Customary Units

Material Properties

Density, g/cm3 4.4
1.1 to 1.4
Elongation at Break, % 8.6 to 11
3.5 to 28
Maximum Temperature: Mechanical, °C 330
100 to 110
Specific Heat Capacity, J/kg-K 560
1020 to 1250
Strength to Weight: Axial, points 62 to 75
16 to 27
Strength to Weight: Bending, points 50 to 56
33 to 42
Tensile Strength: Ultimate (UTS), MPa 1000 to 1190
63 to 140
Thermal Expansion, µm/m-K 8.9
25 to 60