242.0 Aluminum vs. 2218 Aluminum
Both 242.0 aluminum and 2218 aluminum are aluminum alloys. Their average alloy composition is basically identical. There are 31 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 242.0 aluminum and the bottom bar is 2218 aluminum.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 70 to 110 | |
| 95 to 110 |
| Elastic (Young's, Tensile) Modulus, GPa | 73 | |
| 73 |
| Elongation at Break, % | 0.5 to 1.5 | |
| 6.8 to 10 |
| Fatigue Strength, MPa | 55 to 110 | |
| 110 |
| Poisson's Ratio | 0.33 | |
| 0.33 |
| Shear Modulus, GPa | 27 | |
| 27 |
| Shear Strength, MPa | 150 to 240 | |
| 210 to 250 |
| Tensile Strength: Ultimate (UTS), MPa | 180 to 290 | |
| 330 to 430 |
| Tensile Strength: Yield (Proof), MPa | 120 to 220 | |
| 260 to 310 |
Thermal Properties
| Latent Heat of Fusion, J/g | 390 | |
| 390 |
| Maximum Temperature: Mechanical, °C | 210 | |
| 220 |
| Melting Completion (Liquidus), °C | 640 | |
| 640 |
| Melting Onset (Solidus), °C | 530 | |
| 510 |
| Specific Heat Capacity, J/kg-K | 870 | |
| 870 |
| Thermal Conductivity, W/m-K | 130 to 170 | |
| 140 |
| Thermal Expansion, µm/m-K | 22 | |
| 22 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 33 to 44 | |
| 37 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 96 to 130 | |
| 110 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 12 | |
| 11 |
| Density, g/cm3 | 3.1 | |
| 3.1 |
| Embodied Carbon, kg CO2/kg material | 8.3 | |
| 8.2 |
| Embodied Energy, MJ/kg | 150 | |
| 150 |
| Embodied Water, L/kg | 1130 | |
| 1130 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 1.3 to 3.4 | |
| 27 to 31 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 110 to 340 | |
| 450 to 650 |
| Stiffness to Weight: Axial, points | 13 | |
| 13 |
| Stiffness to Weight: Bending, points | 45 | |
| 45 |
| Strength to Weight: Axial, points | 16 to 26 | |
| 30 to 39 |
| Strength to Weight: Bending, points | 23 to 32 | |
| 34 to 41 |
| Thermal Diffusivity, mm2/s | 50 to 62 | |
| 52 |
| Thermal Shock Resistance, points | 8.0 to 13 | |
| 15 to 19 |
Alloy Composition
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| Aluminum (Al), % | 88.4 to 93.6 | |
| 88.8 to 93.6 |
| Chromium (Cr), % | 0 to 0.25 | |
| 0 to 0.1 |
| Copper (Cu), % | 3.5 to 4.5 | |
| 3.5 to 4.5 |
| Iron (Fe), % | 0 to 1.0 | |
| 0 to 1.0 |
| Magnesium (Mg), % | 1.2 to 1.8 | |
| 1.2 to 1.8 |
| Manganese (Mn), % | 0 to 0.35 | |
| 0 to 0.2 |
| Nickel (Ni), % | 1.7 to 2.3 | |
| 1.7 to 2.3 |
| Silicon (Si), % | 0 to 0.7 | |
| 0 to 0.9 |
| Titanium (Ti), % | 0 to 0.25 | |
| 0 |
| Zinc (Zn), % | 0 to 0.35 | |
| 0 to 0.25 |
| Residuals, % | 0 to 0.15 | |
| 0 to 0.15 |