Grade 366 Molybdenum vs. ISO-WD43150 Magnesium
Grade 366 molybdenum belongs to the otherwise unclassified metals classification, while ISO-WD43150 magnesium belongs to the magnesium 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 366 molybdenum and the bottom bar is ISO-WD43150 magnesium.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 300 | |
| 45 |
| Elongation at Break, % | 2.2 | |
| 2.8 |
| Poisson's Ratio | 0.3 | |
| 0.29 |
| Shear Modulus, GPa | 120 | |
| 18 |
| Tensile Strength: Ultimate (UTS), MPa | 580 | |
| 250 |
| Tensile Strength: Yield (Proof), MPa | 470 | |
| 150 |
Thermal Properties
| Latent Heat of Fusion, J/g | 310 | |
| 350 |
| Specific Heat Capacity, J/kg-K | 210 | |
| 990 |
| Thermal Expansion, µm/m-K | 7.6 | |
| 27 |
Otherwise Unclassified Properties
| Density, g/cm3 | 12 | |
| 1.7 |
| Embodied Carbon, kg CO2/kg material | 27 | |
| 24 |
| Embodied Energy, MJ/kg | 340 | |
| 160 |
| Embodied Water, L/kg | 300 | |
| 970 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 12 | |
| 6.1 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 370 | |
| 250 |
| Stiffness to Weight: Axial, points | 14 | |
| 15 |
| Stiffness to Weight: Bending, points | 18 | |
| 71 |
| Strength to Weight: Axial, points | 13 | |
| 41 |
| Strength to Weight: Bending, points | 13 | |
| 52 |
| Thermal Shock Resistance, points | 18 | |
| 14 |
Alloy Composition
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| Carbon (C), % | 0 to 0.030 | |
| 0 |
| Copper (Cu), % | 0 | |
| 0 to 0.050 |
| Iron (Fe), % | 0 to 0.010 | |
| 0 |
| Magnesium (Mg), % | 0 | |
| 97.5 to 98.8 |
| Manganese (Mn), % | 0 | |
| 1.2 to 2.0 |
| Molybdenum (Mo), % | 66.9 to 73 | |
| 0 |
| Nickel (Ni), % | 0 to 0.0020 | |
| 0 to 0.010 |
| Nitrogen (N), % | 0 to 0.0020 | |
| 0 |
| Oxygen (O), % | 0 to 0.0025 | |
| 0 |
| Silicon (Si), % | 0 to 0.010 | |
| 0 to 0.1 |
| Tungsten (W), % | 27 to 33 | |
| 0 |
| Residuals, % | 0 | |
| 0 to 0.3 |