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Grade 360 Molybdenum vs. WE43B Magnesium

Grade 360 molybdenum belongs to the otherwise unclassified metals classification, while WE43B magnesium belongs to the magnesium alloys. 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 grade 360 molybdenum and the bottom bar is WE43B magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 310
44
Elongation at Break, % 6.3 to 17
2.2
Poisson's Ratio 0.31
0.29
Shear Modulus, GPa 120
17
Tensile Strength: Ultimate (UTS), MPa 430 to 620
250
Tensile Strength: Yield (Proof), MPa 270 to 530
200

Thermal Properties

Latent Heat of Fusion, J/g 370
330
Specific Heat Capacity, J/kg-K 250
960
Thermal Expansion, µm/m-K 7.0
27

Otherwise Unclassified Properties

Density, g/cm3 10
1.9
Embodied Carbon, kg CO2/kg material 28
28
Embodied Energy, MJ/kg 330
250
Embodied Water, L/kg 360
910

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 37 to 64
5.2
Resilience: Unit (Modulus of Resilience), kJ/m3 120 to 450
430
Stiffness to Weight: Axial, points 17
13
Stiffness to Weight: Bending, points 22
61
Strength to Weight: Axial, points 12 to 17
36
Strength to Weight: Bending, points 12 to 16
46
Thermal Shock Resistance, points 14 to 21
15

Alloy Composition

Carbon (C), % 0 to 0.030
0
Copper (Cu), % 0
0 to 0.020
Iron (Fe), % 0 to 0.010
0 to 0.010
Lithium (Li), % 0
0 to 0.2
Magnesium (Mg), % 0
89.8 to 93.5
Manganese (Mn), % 0
0 to 0.030
Molybdenum (Mo), % 99.9 to 100
0
Nickel (Ni), % 0 to 0.0020
0 to 0.0050
Nitrogen (N), % 0 to 0.0020
0
Oxygen (O), % 0 to 0.0015
0
Silicon (Si), % 0 to 0.010
0
Unspecified Rare Earths, % 0
2.4 to 4.4
Yttrium (Y), % 0
3.7 to 4.3
Zinc (Zn), % 0
0 to 0.2
Zirconium (Zr), % 0
0.4 to 1.0