AZ91E Magnesium vs. EN 1.0456 Steel
AZ91E magnesium belongs to the magnesium alloys classification, while EN 1.0456 steel belongs to the iron alloys. There are 32 material properties with values for both materials. Properties with values for just one material (3, 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 AZ91E magnesium and the bottom bar is EN 1.0456 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 75 | |
| 120 to 130 |
| Elastic (Young's, Tensile) Modulus, GPa | 46 | |
| 190 |
| Elongation at Break, % | 2.5 to 6.2 | |
| 24 to 26 |
| Fatigue Strength, MPa | 81 to 85 | |
| 210 to 220 |
| Impact Strength: V-Notched Charpy, J | 0.79 to 2.8 | |
| 38 to 45 |
| Poisson's Ratio | 0.29 | |
| 0.29 |
| Shear Modulus, GPa | 18 | |
| 73 |
| Shear Strength, MPa | 89 to 150 | |
| 270 to 280 |
| Tensile Strength: Ultimate (UTS), MPa | 160 to 260 | |
| 420 to 450 |
| Tensile Strength: Yield (Proof), MPa | 96 to 130 | |
| 290 to 300 |
Thermal Properties
| Latent Heat of Fusion, J/g | 350 | |
| 250 |
| Maximum Temperature: Mechanical, °C | 130 | |
| 400 |
| Melting Completion (Liquidus), °C | 600 | |
| 1460 |
| Melting Onset (Solidus), °C | 500 | |
| 1420 |
| Specific Heat Capacity, J/kg-K | 990 | |
| 470 |
| Thermal Conductivity, W/m-K | 84 | |
| 48 |
| Thermal Expansion, µm/m-K | 27 | |
| 12 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 10 to 12 | |
| 7.3 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 52 to 60 | |
| 8.4 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 12 | |
| 2.2 |
| Density, g/cm3 | 1.7 | |
| 7.8 |
| Embodied Carbon, kg CO2/kg material | 22 | |
| 1.5 |
| Embodied Energy, MJ/kg | 160 | |
| 20 |
| Embodied Water, L/kg | 990 | |
| 49 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 3.4 to 12 | |
| 93 to 99 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 100 to 190 | |
| 220 to 230 |
| Stiffness to Weight: Axial, points | 15 | |
| 13 |
| Stiffness to Weight: Bending, points | 69 | |
| 24 |
| Strength to Weight: Axial, points | 25 to 42 | |
| 15 to 16 |
| Strength to Weight: Bending, points | 37 to 53 | |
| 16 to 17 |
| Thermal Diffusivity, mm2/s | 49 | |
| 13 |
| Thermal Shock Resistance, points | 9.0 to 15 | |
| 13 to 14 |
Alloy Composition
| Aluminum (Al), % | 8.1 to 9.3 | |
| 0.020 to 0.060 |
| Carbon (C), % | 0 | |
| 0 to 0.2 |
| Chromium (Cr), % | 0 | |
| 0 to 0.3 |
| Copper (Cu), % | 0 to 0.015 | |
| 0 to 0.35 |
| Iron (Fe), % | 0 to 0.0050 | |
| 96.7 to 99.48 |
| Magnesium (Mg), % | 88.8 to 91.3 | |
| 0 |
| Manganese (Mn), % | 0.17 to 0.35 | |
| 0.5 to 1.4 |
| Molybdenum (Mo), % | 0 | |
| 0 to 0.1 |
| Nickel (Ni), % | 0 to 0.0010 | |
| 0 to 0.3 |
| Niobium (Nb), % | 0 | |
| 0 to 0.050 |
| Nitrogen (N), % | 0 | |
| 0 to 0.015 |
| Phosphorus (P), % | 0 | |
| 0 to 0.035 |
| Silicon (Si), % | 0 to 0.2 | |
| 0 to 0.4 |
| Sulfur (S), % | 0 | |
| 0 to 0.030 |
| Titanium (Ti), % | 0 | |
| 0 to 0.030 |
| Vanadium (V), % | 0 | |
| 0 to 0.050 |
| Zinc (Zn), % | 0.4 to 1.0 | |
| 0 |
| Residuals, % | 0 to 0.3 | |
| 0 |