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Grade 5 Titanium vs. PTFE

Grade 5 titanium and PTFE belong to fundamentally different material chemistries. Grade 5 titanium is a metal, while PTFE is a polymeric material. Therefore, their performance will be even more dissimilar than would be suggested by the difference in properties. There are 9 material properties with values for both materials. Properties with values for just one material (32, 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 PTFE.

Metric UnitsUS Customary Units

Material Properties

Density, g/cm3 4.4
2.1 to 2.3
Elongation at Break, % 8.6 to 11
75 to 300
Maximum Temperature: Mechanical, °C 330
260 to 270
Melting Onset (Solidus), °C 1650
330 to 340
Strength to Weight: Axial, points 62 to 75
1.7 to 3.2
Strength to Weight: Bending, points 50 to 56
5.7 to 8.7
Tensile Strength: Ultimate (UTS), MPa 1000 to 1190
13 to 25
Thermal Conductivity, W/m-K 6.8
0.24 to 0.65
Thermal Expansion, µm/m-K 8.9
110 to 120