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Grade 365 Molybdenum vs. 7204 Aluminum

Grade 365 molybdenum belongs to the otherwise unclassified metals classification, while 7204 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 grade 365 molybdenum and the bottom bar is 7204 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 310
70
Elongation at Break, % 6.3
11 to 13
Poisson's Ratio 0.31
0.33
Shear Modulus, GPa 120
26
Tensile Strength: Ultimate (UTS), MPa 620
220 to 380
Tensile Strength: Yield (Proof), MPa 530
120 to 310

Thermal Properties

Latent Heat of Fusion, J/g 370
380
Specific Heat Capacity, J/kg-K 250
880
Thermal Expansion, µm/m-K 7.0
24

Otherwise Unclassified Properties

Density, g/cm3 10
2.9
Embodied Carbon, kg CO2/kg material 28
8.4
Embodied Energy, MJ/kg 330
150
Embodied Water, L/kg 360
1140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 37
25 to 40
Resilience: Unit (Modulus of Resilience), kJ/m3 450
110 to 710
Stiffness to Weight: Axial, points 17
13
Stiffness to Weight: Bending, points 22
47
Strength to Weight: Axial, points 17
21 to 36
Strength to Weight: Bending, points 16
28 to 40
Thermal Shock Resistance, points 21
9.4 to 16

Alloy Composition

Aluminum (Al), % 0
90.5 to 94.8
Carbon (C), % 0 to 0.010
0
Chromium (Cr), % 0
0 to 0.3
Copper (Cu), % 0
0 to 0.2
Iron (Fe), % 0 to 0.010
0 to 0.35
Magnesium (Mg), % 0
1.0 to 2.0
Manganese (Mn), % 0
0.2 to 0.7
Molybdenum (Mo), % 99.9 to 100
0
Nickel (Ni), % 0 to 0.0020
0
Nitrogen (N), % 0 to 0.0020
0
Oxygen (O), % 0 to 0.0015
0
Silicon (Si), % 0 to 0.010
0 to 0.3
Titanium (Ti), % 0
0 to 0.2
Vanadium (V), % 0
0 to 0.1
Zinc (Zn), % 0
4.0 to 5.0
Zirconium (Zr), % 0
0 to 0.25
Residuals, % 0
0 to 0.15