6018-T6 Aluminum vs. 7475-T6 Aluminum
Both 6018-T6 aluminum and 7475-T6 aluminum are aluminum alloys. Both are furnished in the T6 temper. They have a moderately high 92% of their average alloy composition in common.
For each property being compared, the top bar is 6018-T6 aluminum and the bottom bar is 7475-T6 aluminum.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 69 | |
| 70 |
| Elongation at Break, % | 9.0 | |
| 10 |
| Fatigue Strength, MPa | 89 | |
| 200 |
| Poisson's Ratio | 0.33 | |
| 0.32 |
| Shear Modulus, GPa | 26 | |
| 26 |
| Shear Strength, MPa | 170 | |
| 350 |
| Tensile Strength: Ultimate (UTS), MPa | 290 | |
| 590 |
| Tensile Strength: Yield (Proof), MPa | 230 | |
| 490 |
Thermal Properties
| Latent Heat of Fusion, J/g | 400 | |
| 380 |
| Maximum Temperature: Mechanical, °C | 160 | |
| 180 |
| Melting Completion (Liquidus), °C | 640 | |
| 640 |
| Melting Onset (Solidus), °C | 570 | |
| 480 |
| Specific Heat Capacity, J/kg-K | 890 | |
| 870 |
| Thermal Conductivity, W/m-K | 170 | |
| 140 |
| Thermal Expansion, µm/m-K | 23 | |
| 23 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 44 | |
| 33 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 140 | |
| 98 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 10 | |
| 10 |
| Density, g/cm3 | 2.9 | |
| 3.0 |
| Embodied Carbon, kg CO2/kg material | 8.2 | |
| 8.2 |
| Embodied Energy, MJ/kg | 150 | |
| 150 |
| Embodied Water, L/kg | 1180 | |
| 1130 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 24 | |
| 57 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 380 | |
| 1740 |
| Stiffness to Weight: Axial, points | 13 | |
| 13 |
| Stiffness to Weight: Bending, points | 48 | |
| 46 |
| Strength to Weight: Axial, points | 28 | |
| 54 |
| Strength to Weight: Bending, points | 34 | |
| 52 |
| Thermal Diffusivity, mm2/s | 65 | |
| 54 |
| Thermal Shock Resistance, points | 13 | |
| 26 |
Alloy Composition
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| Aluminum (Al), % | 93.1 to 97.8 | |
| 88.6 to 91.6 |
| Bismuth (Bi), % | 0.4 to 0.7 | |
| 0 |
| Chromium (Cr), % | 0 to 0.1 | |
| 0.18 to 0.25 |
| Copper (Cu), % | 0.15 to 0.4 | |
| 1.2 to 1.9 |
| Iron (Fe), % | 0 to 0.7 | |
| 0 to 0.12 |
| Lead (Pb), % | 0.4 to 1.2 | |
| 0 |
| Magnesium (Mg), % | 0.6 to 1.2 | |
| 1.9 to 2.6 |
| Manganese (Mn), % | 0.3 to 0.8 | |
| 0 to 0.060 |
| Silicon (Si), % | 0.5 to 1.2 | |
| 0 to 0.1 |
| Titanium (Ti), % | 0 to 0.2 | |
| 0 to 0.060 |
| Zinc (Zn), % | 0 to 0.3 | |
| 5.1 to 6.2 |
| Residuals, % | 0 to 0.15 | |
| 0 to 0.15 |