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7020 Aluminum vs. Grade 366 Molybdenum

7020 aluminum belongs to the aluminum alloys classification, while grade 366 molybdenum 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 7020 aluminum and the bottom bar is grade 366 molybdenum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
300
Elongation at Break, % 8.4 to 14
2.2
Poisson's Ratio 0.33
0.3
Shear Modulus, GPa 26
120
Tensile Strength: Ultimate (UTS), MPa 190 to 390
580
Tensile Strength: Yield (Proof), MPa 120 to 310
470

Thermal Properties

Latent Heat of Fusion, J/g 380
310
Specific Heat Capacity, J/kg-K 880
210
Thermal Expansion, µm/m-K 23
7.6

Otherwise Unclassified Properties

Density, g/cm3 2.9
12
Embodied Carbon, kg CO2/kg material 8.3
27
Embodied Energy, MJ/kg 150
340
Embodied Water, L/kg 1150
300

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 23 to 46
12
Resilience: Unit (Modulus of Resilience), kJ/m3 110 to 690
370
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 47
18
Strength to Weight: Axial, points 18 to 37
13
Strength to Weight: Bending, points 25 to 41
13
Thermal Shock Resistance, points 8.3 to 17
18

Alloy Composition

Aluminum (Al), % 91.2 to 94.8
0
Carbon (C), % 0
0 to 0.030
Chromium (Cr), % 0.1 to 0.35
0
Copper (Cu), % 0 to 0.2
0
Iron (Fe), % 0 to 0.4
0 to 0.010
Magnesium (Mg), % 1.0 to 1.4
0
Manganese (Mn), % 0.050 to 0.5
0
Molybdenum (Mo), % 0
66.9 to 73
Nickel (Ni), % 0
0 to 0.0020
Nitrogen (N), % 0
0 to 0.0020
Oxygen (O), % 0
0 to 0.0025
Silicon (Si), % 0 to 0.35
0 to 0.010
Titanium (Ti), % 0 to 0.25
0
Tungsten (W), % 0
27 to 33
Zinc (Zn), % 4.0 to 5.0
0
Zirconium (Zr), % 0.080 to 0.25
0
Residuals, % 0 to 0.15
0