ISO-WD32260 Magnesium vs. SAE-AISI 8630 Steel
ISO-WD32260 magnesium belongs to the magnesium alloys classification, while SAE-AISI 8630 steel belongs to the iron alloys. There are 30 material properties with values for both materials. Properties with values for just one material (1, 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 ISO-WD32260 magnesium and the bottom bar is SAE-AISI 8630 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 46 | |
| 190 |
| Elongation at Break, % | 4.5 to 6.0 | |
| 12 to 24 |
| Fatigue Strength, MPa | 150 to 190 | |
| 260 to 350 |
| Poisson's Ratio | 0.29 | |
| 0.29 |
| Shear Modulus, GPa | 18 | |
| 73 |
| Shear Strength, MPa | 190 to 200 | |
| 340 to 410 |
| Tensile Strength: Ultimate (UTS), MPa | 330 to 340 | |
| 540 to 680 |
| Tensile Strength: Yield (Proof), MPa | 230 to 250 | |
| 360 to 560 |
Thermal Properties
| Latent Heat of Fusion, J/g | 330 | |
| 250 |
| Maximum Temperature: Mechanical, °C | 120 | |
| 410 |
| Melting Completion (Liquidus), °C | 600 | |
| 1460 |
| Melting Onset (Solidus), °C | 520 | |
| 1420 |
| Specific Heat Capacity, J/kg-K | 970 | |
| 470 |
| Thermal Conductivity, W/m-K | 110 | |
| 39 |
| Thermal Expansion, µm/m-K | 27 | |
| 11 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 28 | |
| 7.3 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 140 | |
| 8.3 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 13 | |
| 2.6 |
| Density, g/cm3 | 1.9 | |
| 7.8 |
| Embodied Carbon, kg CO2/kg material | 23 | |
| 1.5 |
| Embodied Energy, MJ/kg | 160 | |
| 20 |
| Embodied Water, L/kg | 940 | |
| 50 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 14 to 19 | |
| 78 to 110 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 560 to 700 | |
| 340 to 840 |
| Stiffness to Weight: Axial, points | 13 | |
| 13 |
| Stiffness to Weight: Bending, points | 63 | |
| 24 |
| Strength to Weight: Axial, points | 48 to 51 | |
| 19 to 24 |
| Strength to Weight: Bending, points | 56 to 58 | |
| 19 to 22 |
| Thermal Diffusivity, mm2/s | 63 | |
| 10 |
| Thermal Shock Resistance, points | 19 to 20 | |
| 18 to 23 |
Alloy Composition
| Carbon (C), % | 0 | |
| 0.28 to 0.33 |
| Chromium (Cr), % | 0 | |
| 0.4 to 0.6 |
| Iron (Fe), % | 0 | |
| 96.8 to 97.9 |
| Magnesium (Mg), % | 92.7 to 94.8 | |
| 0 |
| Manganese (Mn), % | 0 | |
| 0.7 to 0.9 |
| Molybdenum (Mo), % | 0 | |
| 0.15 to 0.25 |
| Nickel (Ni), % | 0 | |
| 0.4 to 0.7 |
| Phosphorus (P), % | 0 | |
| 0 to 0.035 |
| Silicon (Si), % | 0 | |
| 0.15 to 0.35 |
| Sulfur (S), % | 0 | |
| 0 to 0.040 |
| Zinc (Zn), % | 4.8 to 6.2 | |
| 0 |
| Zirconium (Zr), % | 0.45 to 0.8 | |
| 0 |
| Residuals, % | 0 to 0.3 | |
| 0 |