AZ91B Magnesium vs. 6262A Aluminum
AZ91B magnesium belongs to the magnesium alloys classification, while 6262A aluminum belongs to the aluminum alloys. There are 30 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 AZ91B magnesium and the bottom bar is 6262A aluminum.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 46 | |
| 68 |
| Elongation at Break, % | 5.0 | |
| 4.5 to 11 |
| Fatigue Strength, MPa | 79 | |
| 94 to 110 |
| Poisson's Ratio | 0.29 | |
| 0.33 |
| Shear Modulus, GPa | 18 | |
| 26 |
| Shear Strength, MPa | 140 | |
| 190 to 240 |
| Tensile Strength: Ultimate (UTS), MPa | 240 | |
| 310 to 410 |
| Tensile Strength: Yield (Proof), MPa | 160 | |
| 270 to 370 |
Thermal Properties
| Latent Heat of Fusion, J/g | 360 | |
| 400 |
| Maximum Temperature: Mechanical, °C | 130 | |
| 160 |
| Melting Completion (Liquidus), °C | 600 | |
| 640 |
| Melting Onset (Solidus), °C | 470 | |
| 580 |
| Specific Heat Capacity, J/kg-K | 990 | |
| 890 |
| Thermal Conductivity, W/m-K | 73 | |
| 170 |
| Thermal Expansion, µm/m-K | 26 | |
| 23 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 11 | |
| 45 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 58 | |
| 140 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 12 | |
| 11 |
| Density, g/cm3 | 1.7 | |
| 2.8 |
| Embodied Carbon, kg CO2/kg material | 22 | |
| 8.4 |
| Embodied Energy, MJ/kg | 160 | |
| 150 |
| Embodied Water, L/kg | 990 | |
| 1190 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 11 | |
| 17 to 34 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 280 | |
| 540 to 1000 |
| Stiffness to Weight: Axial, points | 15 | |
| 14 |
| Stiffness to Weight: Bending, points | 69 | |
| 49 |
| Strength to Weight: Axial, points | 38 | |
| 31 to 41 |
| Strength to Weight: Bending, points | 49 | |
| 36 to 44 |
| Thermal Diffusivity, mm2/s | 42 | |
| 67 |
| Thermal Shock Resistance, points | 14 | |
| 14 to 18 |
Alloy Composition
| Aluminum (Al), % | 8.3 to 9.7 | |
| 94.2 to 97.8 |
| Bismuth (Bi), % | 0 | |
| 0.4 to 0.9 |
| Chromium (Cr), % | 0 | |
| 0.040 to 0.14 |
| Copper (Cu), % | 0 to 0.35 | |
| 0.15 to 0.4 |
| Iron (Fe), % | 0 | |
| 0 to 0.7 |
| Magnesium (Mg), % | 87.9 to 91.2 | |
| 0.8 to 1.2 |
| Manganese (Mn), % | 0.13 to 0.5 | |
| 0 to 0.15 |
| Nickel (Ni), % | 0 to 0.030 | |
| 0 |
| Silicon (Si), % | 0 to 0.5 | |
| 0.4 to 0.8 |
| Tin (Sn), % | 0 | |
| 0.4 to 1.0 |
| Titanium (Ti), % | 0 | |
| 0 to 0.1 |
| Zinc (Zn), % | 0.35 to 1.0 | |
| 0 to 0.25 |
| Residuals, % | 0 | |
| 0 to 0.15 |