2218 Aluminum vs. 390.0 Aluminum
Both 2218 aluminum and 390.0 aluminum are aluminum alloys. They have 83% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.
For each property being compared, the top bar is 2218 aluminum and the bottom bar is 390.0 aluminum.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 95 to 110 | |
| 120 |
| Elastic (Young's, Tensile) Modulus, GPa | 73 | |
| 75 |
| Elongation at Break, % | 6.8 to 10 | |
| 1.0 |
| Fatigue Strength, MPa | 110 | |
| 76 to 110 |
| Poisson's Ratio | 0.33 | |
| 0.33 |
| Shear Modulus, GPa | 27 | |
| 28 |
| Tensile Strength: Ultimate (UTS), MPa | 330 to 430 | |
| 280 to 300 |
| Tensile Strength: Yield (Proof), MPa | 260 to 310 | |
| 240 to 270 |
Thermal Properties
| Latent Heat of Fusion, J/g | 390 | |
| 640 |
| Maximum Temperature: Mechanical, °C | 220 | |
| 170 |
| Melting Completion (Liquidus), °C | 640 | |
| 650 |
| Melting Onset (Solidus), °C | 510 | |
| 560 |
| Specific Heat Capacity, J/kg-K | 870 | |
| 880 |
| Thermal Conductivity, W/m-K | 140 | |
| 130 |
| Thermal Expansion, µm/m-K | 22 | |
| 18 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 37 | |
| 24 to 25 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 110 | |
| 79 to 83 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 11 | |
| 11 |
| Density, g/cm3 | 3.1 | |
| 2.7 |
| Embodied Carbon, kg CO2/kg material | 8.2 | |
| 7.3 |
| Embodied Energy, MJ/kg | 150 | |
| 130 |
| Embodied Water, L/kg | 1130 | |
| 950 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 27 to 31 | |
| 2.7 to 2.9 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 450 to 650 | |
| 380 to 470 |
| Stiffness to Weight: Axial, points | 13 | |
| 15 |
| Stiffness to Weight: Bending, points | 45 | |
| 52 |
| Strength to Weight: Axial, points | 30 to 39 | |
| 28 to 30 |
| Strength to Weight: Bending, points | 34 to 41 | |
| 35 to 36 |
| Thermal Diffusivity, mm2/s | 52 | |
| 56 |
| Thermal Shock Resistance, points | 15 to 19 | |
| 14 to 15 |
Alloy Composition
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| Aluminum (Al), % | 88.8 to 93.6 | |
| 74.5 to 79.6 |
| Chromium (Cr), % | 0 to 0.1 | |
| 0 |
| Copper (Cu), % | 3.5 to 4.5 | |
| 4.0 to 5.0 |
| Iron (Fe), % | 0 to 1.0 | |
| 0 to 1.3 |
| Magnesium (Mg), % | 1.2 to 1.8 | |
| 0.45 to 0.65 |
| Manganese (Mn), % | 0 to 0.2 | |
| 0 to 0.1 |
| Nickel (Ni), % | 1.7 to 2.3 | |
| 0 |
| Silicon (Si), % | 0 to 0.9 | |
| 16 to 18 |
| Titanium (Ti), % | 0 | |
| 0 to 0.2 |
| Zinc (Zn), % | 0 to 0.25 | |
| 0 to 0.1 |
| Residuals, % | 0 to 0.15 | |
| 0 to 0.2 |