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238.0 Aluminum vs. R05400 Tantalum

238.0 aluminum belongs to the aluminum 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 (9, 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 238.0 aluminum and the bottom bar is R05400 tantalum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 76
190
Elongation at Break, % 1.5
1.1 to 28
Poisson's Ratio 0.33
0.34
Shear Modulus, GPa 28
69
Tensile Strength: Ultimate (UTS), MPa 210
210 to 540
Tensile Strength: Yield (Proof), MPa 170
140 to 390

Thermal Properties

Latent Heat of Fusion, J/g 430
140
Specific Heat Capacity, J/kg-K 840
140
Thermal Conductivity, W/m-K 100
59
Thermal Expansion, µm/m-K 21
6.5

Otherwise Unclassified Properties

Density, g/cm3 3.4
17
Embodied Water, L/kg 1040
650

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.9
5.5 to 53
Resilience: Unit (Modulus of Resilience), kJ/m3 180
50 to 420
Stiffness to Weight: Axial, points 12
6.2
Stiffness to Weight: Bending, points 42
11
Strength to Weight: Axial, points 17
3.6 to 9.0
Strength to Weight: Bending, points 23
4.8 to 8.8
Thermal Diffusivity, mm2/s 37
25
Thermal Shock Resistance, points 9.1
13 to 32

Alloy Composition

Aluminum (Al), % 81.9 to 84.9
0
Carbon (C), % 0
0 to 0.010
Copper (Cu), % 9.5 to 10.5
0
Hydrogen (H), % 0
0 to 0.0015
Iron (Fe), % 1.0 to 1.5
0 to 0.010
Magnesium (Mg), % 0 to 0.25
0
Molybdenum (Mo), % 0
0 to 0.020
Nickel (Ni), % 0
0 to 0.010
Niobium (Nb), % 0
0 to 0.1
Nitrogen (N), % 0
0 to 0.010
Oxygen (O), % 0
0 to 0.030
Silicon (Si), % 3.6 to 4.4
0 to 0.0050
Tantalum (Ta), % 0
99.7 to 100
Titanium (Ti), % 0
0 to 0.010
Tungsten (W), % 0
0 to 0.050
Zinc (Zn), % 1.0 to 1.5
0