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Grade 5 Titanium vs. ECO Rubber

Grade 5 titanium and ECO rubber belong to fundamentally different material chemistries. Grade 5 titanium is a metal, while ECO rubber is a polymeric material. Therefore, their performance will be even more dissimilar than would be suggested by the difference in properties. There are 12 material properties with values for both materials. Properties with values for just one material (21, 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 ECO rubber.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
0.0075
Elongation at Break, % 8.6 to 11
440
Poisson's Ratio 0.32
0.49
Shear Modulus, GPa 40
2.5
Tensile Strength: Ultimate (UTS), MPa 1000 to 1190
16

Thermal Properties

Maximum Temperature: Mechanical, °C 330
130
Thermal Expansion, µm/m-K 8.9
650

Otherwise Unclassified Properties

Density, g/cm3 4.4
1.5

Common Calculations

Stiffness to Weight: Axial, points 13
0.0029
Stiffness to Weight: Bending, points 35
4.5
Strength to Weight: Axial, points 62 to 75
3.0
Strength to Weight: Bending, points 50 to 56
9.5