ISO-WD32250 Magnesium vs. Nickel 22
ISO-WD32250 magnesium belongs to the magnesium alloys classification, while nickel 22 belongs to the nickel alloys. 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 ISO-WD32250 magnesium and the bottom bar is nickel 22.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 45 | |
| 220 |
| Elongation at Break, % | 4.5 to 8.6 | |
| 49 |
| Fatigue Strength, MPa | 170 to 210 | |
| 330 |
| Poisson's Ratio | 0.29 | |
| 0.29 |
| Shear Modulus, GPa | 17 | |
| 84 |
| Shear Strength, MPa | 180 to 190 | |
| 560 |
| Tensile Strength: Ultimate (UTS), MPa | 310 to 330 | |
| 790 |
| Tensile Strength: Yield (Proof), MPa | 240 to 290 | |
| 360 |
Thermal Properties
| Latent Heat of Fusion, J/g | 340 | |
| 320 |
| Maximum Temperature: Mechanical, °C | 120 | |
| 990 |
| Melting Completion (Liquidus), °C | 600 | |
| 1390 |
| Melting Onset (Solidus), °C | 550 | |
| 1360 |
| Specific Heat Capacity, J/kg-K | 980 | |
| 430 |
| Thermal Conductivity, W/m-K | 130 | |
| 10 |
| Thermal Expansion, µm/m-K | 26 | |
| 11 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 25 | |
| 1.5 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 130 | |
| 1.5 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 13 | |
| 70 |
| Density, g/cm3 | 1.8 | |
| 8.9 |
| Embodied Carbon, kg CO2/kg material | 24 | |
| 12 |
| Embodied Energy, MJ/kg | 160 | |
| 170 |
| Embodied Water, L/kg | 950 | |
| 300 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 14 to 26 | |
| 320 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 630 to 930 | |
| 300 |
| Stiffness to Weight: Axial, points | 14 | |
| 14 |
| Stiffness to Weight: Bending, points | 67 | |
| 22 |
| Strength to Weight: Axial, points | 49 to 51 | |
| 25 |
| Strength to Weight: Bending, points | 58 to 60 | |
| 21 |
| Thermal Diffusivity, mm2/s | 72 | |
| 2.7 |
| Thermal Shock Resistance, points | 19 to 20 | |
| 24 |
Alloy Composition
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| Carbon (C), % | 0 | |
| 0 to 0.015 |
| Chromium (Cr), % | 0 | |
| 20 to 22.5 |
| Cobalt (Co), % | 0 | |
| 0 to 2.5 |
| Iron (Fe), % | 0 | |
| 2.0 to 6.0 |
| Magnesium (Mg), % | 94.9 to 97.1 | |
| 0 |
| Manganese (Mn), % | 0 | |
| 0 to 0.015 |
| Molybdenum (Mo), % | 0 | |
| 12.5 to 14.5 |
| Nickel (Ni), % | 0 | |
| 50.8 to 63 |
| Phosphorus (P), % | 0 | |
| 0 to 0.020 |
| Silicon (Si), % | 0 | |
| 0 to 0.080 |
| Sulfur (S), % | 0 | |
| 0 to 0.020 |
| Tungsten (W), % | 0 | |
| 2.5 to 3.5 |
| Vanadium (V), % | 0 | |
| 0 to 0.35 |
| Zinc (Zn), % | 2.5 to 4.0 | |
| 0 |
| Zirconium (Zr), % | 0.45 to 0.8 | |
| 0 |
| Residuals, % | 0 to 0.3 | |
| 0 |