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R05400 Tantalum vs. Titanium 6-7

R05400 tantalum belongs to the otherwise unclassified metals classification, while titanium 6-7 belongs to the titanium alloys. There are 18 material properties with values for both materials. Properties with values for just one material (11, 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 R05400 tantalum and the bottom bar is titanium 6-7.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
120
Elongation at Break, % 1.1 to 28
11
Poisson's Ratio 0.34
0.33
Shear Modulus, GPa 69
45
Tensile Strength: Ultimate (UTS), MPa 210 to 540
1020
Tensile Strength: Yield (Proof), MPa 140 to 390
900

Thermal Properties

Latent Heat of Fusion, J/g 140
410
Specific Heat Capacity, J/kg-K 140
520
Thermal Expansion, µm/m-K 6.5
9.3

Otherwise Unclassified Properties

Density, g/cm3 17
5.1
Embodied Water, L/kg 650
190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 5.5 to 53
110
Resilience: Unit (Modulus of Resilience), kJ/m3 50 to 420
3460
Stiffness to Weight: Axial, points 6.2
13
Stiffness to Weight: Bending, points 11
32
Strength to Weight: Axial, points 3.6 to 9.0
56
Strength to Weight: Bending, points 4.8 to 8.8
44
Thermal Shock Resistance, points 13 to 32
66

Alloy Composition

Aluminum (Al), % 0
5.5 to 6.5
Carbon (C), % 0 to 0.010
0 to 0.080
Hydrogen (H), % 0 to 0.0015
0 to 0.0090
Iron (Fe), % 0 to 0.010
0 to 0.25
Molybdenum (Mo), % 0 to 0.020
6.5 to 7.5
Nickel (Ni), % 0 to 0.010
0
Niobium (Nb), % 0 to 0.1
6.5 to 7.5
Nitrogen (N), % 0 to 0.010
0 to 0.050
Oxygen (O), % 0 to 0.030
0 to 0.2
Silicon (Si), % 0 to 0.0050
0
Tantalum (Ta), % 99.7 to 100
0 to 0.5
Titanium (Ti), % 0 to 0.010
84.9 to 88
Tungsten (W), % 0 to 0.050
0