355.0 Aluminum vs. AZ80A Magnesium
355.0 aluminum belongs to the aluminum alloys classification, while AZ80A magnesium belongs to the magnesium alloys. There are 30 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.
For each property being compared, the top bar is 355.0 aluminum and the bottom bar is AZ80A magnesium.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 71 | |
| 46 |
| Elongation at Break, % | 1.5 to 2.6 | |
| 3.9 to 8.5 |
| Fatigue Strength, MPa | 55 to 70 | |
| 140 to 170 |
| Poisson's Ratio | 0.33 | |
| 0.29 |
| Shear Modulus, GPa | 27 | |
| 18 |
| Shear Strength, MPa | 150 to 240 | |
| 160 to 190 |
| Tensile Strength: Ultimate (UTS), MPa | 200 to 260 | |
| 320 to 340 |
| Tensile Strength: Yield (Proof), MPa | 150 to 190 | |
| 210 to 230 |
Thermal Properties
| Latent Heat of Fusion, J/g | 470 | |
| 350 |
| Maximum Temperature: Mechanical, °C | 180 | |
| 130 |
| Melting Completion (Liquidus), °C | 620 | |
| 600 |
| Melting Onset (Solidus), °C | 560 | |
| 490 |
| Specific Heat Capacity, J/kg-K | 890 | |
| 990 |
| Thermal Conductivity, W/m-K | 150 to 170 | |
| 77 |
| Thermal Expansion, µm/m-K | 22 | |
| 26 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 38 to 43 | |
| 11 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 120 to 140 | |
| 59 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 9.5 | |
| 12 |
| Density, g/cm3 | 2.7 | |
| 1.7 |
| Embodied Carbon, kg CO2/kg material | 8.0 | |
| 23 |
| Embodied Energy, MJ/kg | 150 | |
| 160 |
| Embodied Water, L/kg | 1120 | |
| 990 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 2.7 to 5.9 | |
| 12 to 24 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 150 to 250 | |
| 500 to 600 |
| Stiffness to Weight: Axial, points | 14 | |
| 15 |
| Stiffness to Weight: Bending, points | 51 | |
| 69 |
| Strength to Weight: Axial, points | 20 to 27 | |
| 51 to 55 |
| Strength to Weight: Bending, points | 28 to 33 | |
| 60 to 63 |
| Thermal Diffusivity, mm2/s | 60 to 69 | |
| 45 |
| Thermal Shock Resistance, points | 9.1 to 12 | |
| 19 to 20 |
Alloy Composition
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| Aluminum (Al), % | 90.3 to 94.1 | |
| 7.8 to 9.2 |
| Chromium (Cr), % | 0 to 0.25 | |
| 0 |
| Copper (Cu), % | 1.0 to 1.5 | |
| 0 to 0.050 |
| Iron (Fe), % | 0 to 0.6 | |
| 0 to 0.0050 |
| Magnesium (Mg), % | 0.4 to 0.6 | |
| 89 to 91.9 |
| Manganese (Mn), % | 0 to 0.5 | |
| 0.12 to 0.5 |
| Nickel (Ni), % | 0 | |
| 0 to 0.0050 |
| Silicon (Si), % | 4.5 to 5.5 | |
| 0 to 0.1 |
| Titanium (Ti), % | 0 to 0.25 | |
| 0 |
| Zinc (Zn), % | 0 to 0.35 | |
| 0.2 to 0.8 |
| Residuals, % | 0 to 0.15 | |
| 0 to 0.3 |