6018 Aluminum vs. 6012 Aluminum
Both 6018 aluminum and 6012 aluminum are aluminum alloys. Their average alloy composition is basically identical.
For each property being compared, the top bar is 6018 aluminum and the bottom bar is 6012 aluminum.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 69 | |
| 69 |
| Elongation at Break, % | 9.0 to 9.1 | |
| 9.1 to 11 |
| Fatigue Strength, MPa | 85 to 89 | |
| 55 to 100 |
| Poisson's Ratio | 0.33 | |
| 0.33 |
| Shear Modulus, GPa | 26 | |
| 26 |
| Shear Strength, MPa | 170 to 180 | |
| 130 to 190 |
| Tensile Strength: Ultimate (UTS), MPa | 290 to 300 | |
| 220 to 320 |
| Tensile Strength: Yield (Proof), MPa | 220 to 230 | |
| 110 to 260 |
Thermal Properties
| Latent Heat of Fusion, J/g | 400 | |
| 400 |
| Maximum Temperature: Mechanical, °C | 160 | |
| 170 |
| Melting Completion (Liquidus), °C | 640 | |
| 640 |
| Melting Onset (Solidus), °C | 570 | |
| 570 |
| Specific Heat Capacity, J/kg-K | 890 | |
| 890 |
| Thermal Conductivity, W/m-K | 170 | |
| 160 |
| Thermal Expansion, µm/m-K | 23 | |
| 23 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 44 | |
| 45 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 140 | |
| 140 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 10 | |
| 9.5 |
| Density, g/cm3 | 2.9 | |
| 2.9 |
| Embodied Carbon, kg CO2/kg material | 8.2 | |
| 8.2 |
| Embodied Energy, MJ/kg | 150 | |
| 150 |
| Embodied Water, L/kg | 1180 | |
| 1170 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 24 to 25 | |
| 21 to 28 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 360 to 380 | |
| 94 to 480 |
| Stiffness to Weight: Axial, points | 13 | |
| 13 |
| Stiffness to Weight: Bending, points | 48 | |
| 48 |
| Strength to Weight: Axial, points | 28 to 29 | |
| 22 to 32 |
| Strength to Weight: Bending, points | 34 to 35 | |
| 29 to 37 |
| Thermal Diffusivity, mm2/s | 65 | |
| 62 |
| Thermal Shock Resistance, points | 13 | |
| 10 to 14 |
Alloy Composition
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| Aluminum (Al), % | 93.1 to 97.8 | |
| 92.2 to 98 |
| Bismuth (Bi), % | 0.4 to 0.7 | |
| 0 to 0.7 |
| Chromium (Cr), % | 0 to 0.1 | |
| 0 to 0.3 |
| Copper (Cu), % | 0.15 to 0.4 | |
| 0 to 0.1 |
| Iron (Fe), % | 0 to 0.7 | |
| 0 to 0.5 |
| Lead (Pb), % | 0.4 to 1.2 | |
| 0.4 to 2.0 |
| Magnesium (Mg), % | 0.6 to 1.2 | |
| 0.6 to 1.2 |
| Manganese (Mn), % | 0.3 to 0.8 | |
| 0.4 to 1.0 |
| Silicon (Si), % | 0.5 to 1.2 | |
| 0.6 to 1.4 |
| Titanium (Ti), % | 0 to 0.2 | |
| 0 to 0.2 |
| Zinc (Zn), % | 0 to 0.3 | |
| 0 to 0.3 |
| Residuals, % | 0 to 0.15 | |
| 0 to 0.15 |