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EN-MC21310 Magnesium vs. Grade 366 Molybdenum

EN-MC21310 magnesium belongs to the magnesium 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 EN-MC21310 magnesium and the bottom bar is grade 366 molybdenum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
300
Elongation at Break, % 9.0
2.2
Poisson's Ratio 0.29
0.3
Shear Modulus, GPa 17
120
Tensile Strength: Ultimate (UTS), MPa 200
580
Tensile Strength: Yield (Proof), MPa 120
470

Thermal Properties

Latent Heat of Fusion, J/g 360
310
Specific Heat Capacity, J/kg-K 1000
210
Thermal Expansion, µm/m-K 26
7.6

Otherwise Unclassified Properties

Density, g/cm3 1.6
12
Embodied Carbon, kg CO2/kg material 23
27
Embodied Energy, MJ/kg 160
340
Embodied Water, L/kg 970
300

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 16
12
Resilience: Unit (Modulus of Resilience), kJ/m3 160
370
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 73
18
Strength to Weight: Axial, points 34
13
Strength to Weight: Bending, points 47
13
Thermal Shock Resistance, points 12
18

Alloy Composition


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Aluminum (Al), % 1.8 to 2.6
0
Carbon (C), % 0
0 to 0.030
Copper (Cu), % 0 to 0.010
0
Iron (Fe), % 0 to 0.0050
0 to 0.010
Magnesium (Mg), % 95.2 to 97.4
0
Manganese (Mn), % 0.1 to 0.7
0
Molybdenum (Mo), % 0
66.9 to 73
Nickel (Ni), % 0 to 0.0020
0 to 0.0020
Nitrogen (N), % 0
0 to 0.0020
Oxygen (O), % 0
0 to 0.0025
Silicon (Si), % 0.7 to 1.2
0 to 0.010
Tungsten (W), % 0
27 to 33
Zinc (Zn), % 0 to 0.2
0
Residuals, % 0 to 0.010
0