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7049 Aluminum vs. Grade 364 Molybdenum

7049 aluminum belongs to the aluminum alloys classification, while grade 364 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 7049 aluminum and the bottom bar is grade 364 molybdenum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
310
Elongation at Break, % 6.2 to 7.0
6.2 to 11
Poisson's Ratio 0.32
0.31
Shear Modulus, GPa 27
120
Tensile Strength: Ultimate (UTS), MPa 510 to 530
580 to 720
Tensile Strength: Yield (Proof), MPa 420 to 450
350 to 620

Thermal Properties

Latent Heat of Fusion, J/g 370
370
Specific Heat Capacity, J/kg-K 860
250
Thermal Expansion, µm/m-K 23
7.0

Otherwise Unclassified Properties

Density, g/cm3 3.1
10
Embodied Carbon, kg CO2/kg material 8.1
28
Embodied Energy, MJ/kg 140
330
Embodied Water, L/kg 1110
360

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 31 to 34
43 to 57
Resilience: Unit (Modulus of Resilience), kJ/m3 1270 to 1440
200 to 630
Stiffness to Weight: Axial, points 13
17
Stiffness to Weight: Bending, points 45
22
Strength to Weight: Axial, points 46 to 47
16 to 20
Strength to Weight: Bending, points 46 to 47
15 to 17
Thermal Shock Resistance, points 22 to 23
19 to 24

Alloy Composition

Aluminum (Al), % 85.7 to 89.5
0
Carbon (C), % 0
0.010 to 0.040
Chromium (Cr), % 0.1 to 0.22
0
Copper (Cu), % 1.2 to 1.9
0
Iron (Fe), % 0 to 0.35
0 to 0.010
Magnesium (Mg), % 2.0 to 2.9
0
Manganese (Mn), % 0 to 0.2
0
Molybdenum (Mo), % 0
99.2 to 99.5
Nickel (Ni), % 0
0 to 0.0050
Nitrogen (N), % 0
0 to 0.0020
Oxygen (O), % 0
0 to 0.030
Silicon (Si), % 0 to 0.25
0 to 0.0050
Titanium (Ti), % 0 to 0.1
0.4 to 0.55
Zinc (Zn), % 7.2 to 8.2
0
Zirconium (Zr), % 0
0.060 to 0.12
Residuals, % 0 to 0.15
0