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Grade 37 Titanium vs. R05400 Tantalum

Grade 37 titanium belongs to the titanium alloys classification, while R05400 tantalum belongs to the otherwise unclassified metals. There are 20 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 grade 37 titanium and the bottom bar is R05400 tantalum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
190
Elongation at Break, % 22
1.1 to 28
Poisson's Ratio 0.32
0.34
Shear Modulus, GPa 40
69
Tensile Strength: Ultimate (UTS), MPa 390
210 to 540
Tensile Strength: Yield (Proof), MPa 250
140 to 390

Thermal Properties

Latent Heat of Fusion, J/g 420
140
Specific Heat Capacity, J/kg-K 550
140
Thermal Conductivity, W/m-K 21
59
Thermal Expansion, µm/m-K 8.9
6.5

Otherwise Unclassified Properties

Density, g/cm3 4.5
17
Embodied Water, L/kg 120
650

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 76
5.5 to 53
Resilience: Unit (Modulus of Resilience), kJ/m3 280
50 to 420
Stiffness to Weight: Axial, points 13
6.2
Stiffness to Weight: Bending, points 35
11
Strength to Weight: Axial, points 24
3.6 to 9.0
Strength to Weight: Bending, points 26
4.8 to 8.8
Thermal Diffusivity, mm2/s 8.4
25
Thermal Shock Resistance, points 29
13 to 32

Alloy Composition

Aluminum (Al), % 1.0 to 2.0
0
Carbon (C), % 0 to 0.080
0 to 0.010
Hydrogen (H), % 0 to 0.015
0 to 0.0015
Iron (Fe), % 0 to 0.3
0 to 0.010
Molybdenum (Mo), % 0
0 to 0.020
Nickel (Ni), % 0
0 to 0.010
Niobium (Nb), % 0
0 to 0.1
Nitrogen (N), % 0 to 0.030
0 to 0.010
Oxygen (O), % 0 to 0.25
0 to 0.030
Silicon (Si), % 0
0 to 0.0050
Tantalum (Ta), % 0
99.7 to 100
Titanium (Ti), % 96.9 to 99
0 to 0.010
Tungsten (W), % 0
0 to 0.050
Residuals, % 0 to 0.4
0