EN-MC21220 Magnesium vs. Low-oxygen Zirconium
EN-MC21220 magnesium belongs to the magnesium alloys classification, while low-oxygen zirconium 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-MC21220 magnesium and the bottom bar is low-oxygen zirconium.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 45 | |
| 98 |
| Elongation at Break, % | 11 | |
| 23 |
| Poisson's Ratio | 0.29 | |
| 0.34 |
| Shear Modulus, GPa | 17 | |
| 37 |
| Tensile Strength: Ultimate (UTS), MPa | 210 | |
| 330 |
| Tensile Strength: Yield (Proof), MPa | 120 | |
| 270 |
Thermal Properties
| Latent Heat of Fusion, J/g | 350 | |
| 250 |
| Specific Heat Capacity, J/kg-K | 1000 | |
| 270 |
| Thermal Conductivity, W/m-K | 65 | |
| 22 |
| Thermal Expansion, µm/m-K | 27 | |
| 5.7 |
Otherwise Unclassified Properties
| Density, g/cm3 | 1.7 | |
| 6.7 |
| Embodied Water, L/kg | 990 | |
| 450 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 20 | |
| 70 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 160 | |
| 370 |
| Stiffness to Weight: Axial, points | 15 | |
| 8.1 |
| Stiffness to Weight: Bending, points | 71 | |
| 23 |
| Strength to Weight: Axial, points | 34 | |
| 14 |
| Strength to Weight: Bending, points | 46 | |
| 16 |
| Thermal Diffusivity, mm2/s | 39 | |
| 12 |
| Thermal Shock Resistance, points | 12 | |
| 42 |
Alloy Composition
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| Aluminum (Al), % | 4.4 to 5.5 | |
| 0 |
| Carbon (C), % | 0 | |
| 0 to 0.050 |
| Chromium (Cr), % | 0 | |
| 0 to 0.2 |
| Copper (Cu), % | 0 to 0.010 | |
| 0 |
| Hafnium (Hf), % | 0 | |
| 0 to 4.5 |
| Hydrogen (H), % | 0 | |
| 0 to 0.0050 |
| Iron (Fe), % | 0 to 0.0050 | |
| 0 to 0.2 |
| Magnesium (Mg), % | 93.5 to 95.5 | |
| 0 |
| Manganese (Mn), % | 0.1 to 0.6 | |
| 0 |
| Nickel (Ni), % | 0 to 0.0020 | |
| 0 |
| Nitrogen (N), % | 0 | |
| 0 to 0.025 |
| Oxygen (O), % | 0 | |
| 0 to 0.1 |
| Silicon (Si), % | 0 to 0.1 | |
| 0 |
| Zinc (Zn), % | 0 to 0.3 | |
| 0 |
| Zirconium (Zr), % | 0 | |
| 94.7 to 100 |
| Residuals, % | 0 to 0.010 | |
| 0 |