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772.0 Aluminum vs. R05200 Tantalum

772.0 aluminum belongs to the aluminum alloys classification, while R05200 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 772.0 aluminum and the bottom bar is R05200 tantalum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
190
Elongation at Break, % 6.3 to 8.4
1.1 to 28
Poisson's Ratio 0.32
0.34
Shear Modulus, GPa 26
69
Tensile Strength: Ultimate (UTS), MPa 260 to 320
210 to 540
Tensile Strength: Yield (Proof), MPa 220 to 250
140 to 390

Thermal Properties

Latent Heat of Fusion, J/g 380
140
Specific Heat Capacity, J/kg-K 870
140
Thermal Conductivity, W/m-K 150
59
Thermal Expansion, µm/m-K 24
6.5

Otherwise Unclassified Properties

Density, g/cm3 3.0
17
Embodied Water, L/kg 1140
650

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 16 to 25
5.5 to 53
Resilience: Unit (Modulus of Resilience), kJ/m3 350 to 430
50 to 420
Stiffness to Weight: Axial, points 13
6.2
Stiffness to Weight: Bending, points 46
11
Strength to Weight: Axial, points 25 to 31
3.6 to 9.0
Strength to Weight: Bending, points 31 to 36
4.8 to 8.8
Thermal Diffusivity, mm2/s 58
25
Thermal Shock Resistance, points 11 to 14
13 to 32

Alloy Composition

Aluminum (Al), % 91.2 to 93.2
0
Carbon (C), % 0
0 to 0.010
Chromium (Cr), % 0.060 to 0.2
0
Copper (Cu), % 0 to 0.1
0
Hydrogen (H), % 0
0 to 0.0015
Iron (Fe), % 0 to 0.15
0 to 0.010
Magnesium (Mg), % 0.6 to 0.8
0
Manganese (Mn), % 0 to 0.1
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 0.015
Silicon (Si), % 0 to 0.15
0 to 0.0050
Tantalum (Ta), % 0
99.8 to 100
Titanium (Ti), % 0.1 to 0.2
0 to 0.010
Tungsten (W), % 0
0 to 0.050
Zinc (Zn), % 6.0 to 7.0
0
Residuals, % 0 to 0.15
0