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6151 Aluminum vs. Grade 361 Molybdenum

6151 aluminum belongs to the aluminum alloys classification, while grade 361 molybdenum belongs to the otherwise unclassified metals. 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 6151 aluminum and the bottom bar is grade 361 molybdenum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
310
Elongation at Break, % 1.1 to 5.7
6.3
Poisson's Ratio 0.33
0.31
Shear Modulus, GPa 26
120
Tensile Strength: Ultimate (UTS), MPa 330 to 340
620
Tensile Strength: Yield (Proof), MPa 270 to 280
530

Thermal Properties

Latent Heat of Fusion, J/g 410
370
Specific Heat Capacity, J/kg-K 900
250
Thermal Expansion, µm/m-K 23
7.0

Otherwise Unclassified Properties

Density, g/cm3 2.7
10
Embodied Carbon, kg CO2/kg material 8.2
28
Embodied Energy, MJ/kg 150
330
Embodied Water, L/kg 1180
360

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 3.5 to 18
37
Resilience: Unit (Modulus of Resilience), kJ/m3 520 to 580
450
Stiffness to Weight: Axial, points 14
17
Stiffness to Weight: Bending, points 50
22
Strength to Weight: Axial, points 34
17
Strength to Weight: Bending, points 39
16
Thermal Shock Resistance, points 15
21

Alloy Composition

Aluminum (Al), % 95.6 to 98.8
0
Carbon (C), % 0
0 to 0.010
Chromium (Cr), % 0.15 to 0.35
0
Copper (Cu), % 0 to 0.35
0
Iron (Fe), % 0 to 1.0
0 to 0.010
Magnesium (Mg), % 0.45 to 0.8
0
Manganese (Mn), % 0 to 0.2
0
Molybdenum (Mo), % 0
99.9 to 100
Nickel (Ni), % 0
0 to 0.0050
Nitrogen (N), % 0
0 to 0.0020
Oxygen (O), % 0
0 to 0.0070
Silicon (Si), % 0.6 to 1.2
0 to 0.010
Titanium (Ti), % 0 to 0.15
0
Zinc (Zn), % 0 to 0.25
0
Residuals, % 0 to 0.15
0