AZ91D Magnesium vs. AZ91E Magnesium
Both AZ91D magnesium and AZ91E magnesium are magnesium alloys. Their average alloy composition is basically identical. There are 33 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.
For each property being compared, the top bar is AZ91D magnesium and the bottom bar is AZ91E magnesium.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 60 to 80 | |
| 75 |
| Compressive (Crushing) Strength, MPa | 310 to 430 | |
| 310 to 410 |
| Elastic (Young's, Tensile) Modulus, GPa | 46 | |
| 46 |
| Elongation at Break, % | 2.3 to 4.5 | |
| 2.5 to 6.2 |
| Fatigue Strength, MPa | 74 to 85 | |
| 81 to 85 |
| Impact Strength: V-Notched Charpy, J | 2.7 | |
| 0.79 to 2.8 |
| Poisson's Ratio | 0.29 | |
| 0.29 |
| Shear Modulus, GPa | 18 | |
| 18 |
| Shear Strength, MPa | 120 to 140 | |
| 89 to 150 |
| Tensile Strength: Ultimate (UTS), MPa | 160 to 220 | |
| 160 to 260 |
| Tensile Strength: Yield (Proof), MPa | 80 to 130 | |
| 96 to 130 |
Thermal Properties
| Latent Heat of Fusion, J/g | 350 | |
| 350 |
| Maximum Temperature: Mechanical, °C | 130 | |
| 130 |
| Melting Completion (Liquidus), °C | 600 | |
| 600 |
| Melting Onset (Solidus), °C | 490 | |
| 500 |
| Specific Heat Capacity, J/kg-K | 990 | |
| 990 |
| Thermal Conductivity, W/m-K | 78 | |
| 84 |
| Thermal Expansion, µm/m-K | 27 | |
| 27 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 11 | |
| 10 to 12 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 58 | |
| 52 to 60 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 12 | |
| 12 |
| Density, g/cm3 | 1.7 | |
| 1.7 |
| Embodied Carbon, kg CO2/kg material | 22 | |
| 22 |
| Embodied Energy, MJ/kg | 160 | |
| 160 |
| Embodied Water, L/kg | 990 | |
| 990 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 4.2 to 7.7 | |
| 3.4 to 12 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 69 to 170 | |
| 100 to 190 |
| Stiffness to Weight: Axial, points | 15 | |
| 15 |
| Stiffness to Weight: Bending, points | 69 | |
| 69 |
| Strength to Weight: Axial, points | 26 to 34 | |
| 25 to 42 |
| Strength to Weight: Bending, points | 38 to 46 | |
| 37 to 53 |
| Thermal Diffusivity, mm2/s | 45 | |
| 49 |
| Thermal Shock Resistance, points | 9.5 to 13 | |
| 9.0 to 15 |
Alloy Composition
| Aluminum (Al), % | 8.3 to 9.7 | |
| 8.1 to 9.3 |
| Copper (Cu), % | 0 to 0.030 | |
| 0 to 0.015 |
| Iron (Fe), % | 0 to 0.0050 | |
| 0 to 0.0050 |
| Magnesium (Mg), % | 88.7 to 91.2 | |
| 88.8 to 91.3 |
| Manganese (Mn), % | 0.15 to 0.5 | |
| 0.17 to 0.35 |
| Nickel (Ni), % | 0 to 0.0020 | |
| 0 to 0.0010 |
| Silicon (Si), % | 0 to 0.1 | |
| 0 to 0.2 |
| Zinc (Zn), % | 0.35 to 1.0 | |
| 0.4 to 1.0 |
| Residuals, % | 0 | |
| 0 to 0.3 |