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R05400 Tantalum vs. 7022 Aluminum

R05400 tantalum belongs to the otherwise unclassified metals classification, while 7022 aluminum belongs to the aluminum alloys. There are 20 material properties with values for both materials. Properties with values for just one material (10, 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 7022 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
70
Elongation at Break, % 1.1 to 28
6.3 to 8.0
Poisson's Ratio 0.34
0.32
Shear Modulus, GPa 69
26
Tensile Strength: Ultimate (UTS), MPa 210 to 540
490 to 540
Tensile Strength: Yield (Proof), MPa 140 to 390
390 to 460

Thermal Properties

Latent Heat of Fusion, J/g 140
380
Specific Heat Capacity, J/kg-K 140
870
Thermal Conductivity, W/m-K 59
140
Thermal Expansion, µm/m-K 6.5
24

Otherwise Unclassified Properties

Density, g/cm3 17
2.9
Embodied Water, L/kg 650
1130

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 5.5 to 53
29 to 40
Resilience: Unit (Modulus of Resilience), kJ/m3 50 to 420
1100 to 1500
Stiffness to Weight: Axial, points 6.2
13
Stiffness to Weight: Bending, points 11
47
Strength to Weight: Axial, points 3.6 to 9.0
47 to 51
Strength to Weight: Bending, points 4.8 to 8.8
47 to 50
Thermal Diffusivity, mm2/s 25
54
Thermal Shock Resistance, points 13 to 32
21 to 23

Alloy Composition

Aluminum (Al), % 0
87.9 to 92.4
Carbon (C), % 0 to 0.010
0
Chromium (Cr), % 0
0.1 to 0.3
Copper (Cu), % 0
0.5 to 1.0
Hydrogen (H), % 0 to 0.0015
0
Iron (Fe), % 0 to 0.010
0 to 0.5
Magnesium (Mg), % 0
2.6 to 3.7
Manganese (Mn), % 0
0.1 to 0.4
Molybdenum (Mo), % 0 to 0.020
0
Nickel (Ni), % 0 to 0.010
0
Niobium (Nb), % 0 to 0.1
0
Nitrogen (N), % 0 to 0.010
0
Oxygen (O), % 0 to 0.030
0
Silicon (Si), % 0 to 0.0050
0 to 0.5
Tantalum (Ta), % 99.7 to 100
0
Titanium (Ti), % 0 to 0.010
0 to 0.2
Tungsten (W), % 0 to 0.050
0
Zinc (Zn), % 0
4.3 to 5.2
Zirconium (Zr), % 0
0 to 0.2
Residuals, % 0
0 to 0.15