2017 Aluminum vs. 2017A Aluminum
Both 2017 aluminum and 2017A aluminum are aluminum alloys. Their average alloy composition is basically identical.
For each property being compared, the top bar is 2017 aluminum and the bottom bar is 2017A aluminum.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 71 | |
| 71 |
| Elongation at Break, % | 12 to 18 | |
| 2.2 to 14 |
| Fatigue Strength, MPa | 90 to 130 | |
| 92 to 130 |
| Poisson's Ratio | 0.33 | |
| 0.33 |
| Shear Modulus, GPa | 27 | |
| 27 |
| Shear Strength, MPa | 130 to 260 | |
| 120 to 270 |
| Tensile Strength: Ultimate (UTS), MPa | 190 to 430 | |
| 200 to 460 |
| Tensile Strength: Yield (Proof), MPa | 76 to 260 | |
| 110 to 290 |
Thermal Properties
| Latent Heat of Fusion, J/g | 390 | |
| 390 |
| Maximum Temperature: Mechanical, °C | 190 | |
| 220 |
| Melting Completion (Liquidus), °C | 640 | |
| 650 |
| Melting Onset (Solidus), °C | 510 | |
| 510 |
| Specific Heat Capacity, J/kg-K | 880 | |
| 880 |
| Thermal Conductivity, W/m-K | 150 | |
| 150 |
| Thermal Expansion, µm/m-K | 24 | |
| 23 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 38 | |
| 34 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 110 | |
| 100 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 10 | |
| 11 |
| Density, g/cm3 | 3.0 | |
| 3.0 |
| Embodied Carbon, kg CO2/kg material | 8.0 | |
| 8.2 |
| Embodied Energy, MJ/kg | 150 | |
| 150 |
| Embodied Water, L/kg | 1140 | |
| 1140 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 24 to 66 | |
| 6.7 to 53 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 41 to 470 | |
| 90 to 570 |
| Stiffness to Weight: Axial, points | 13 | |
| 13 |
| Stiffness to Weight: Bending, points | 46 | |
| 46 |
| Strength to Weight: Axial, points | 17 to 40 | |
| 19 to 42 |
| Strength to Weight: Bending, points | 24 to 42 | |
| 26 to 44 |
| Thermal Diffusivity, mm2/s | 56 | |
| 56 |
| Thermal Shock Resistance, points | 7.9 to 18 | |
| 8.9 to 20 |
Alloy Composition
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| Aluminum (Al), % | 91.6 to 95.5 | |
| 91.3 to 95.5 |
| Chromium (Cr), % | 0 to 0.1 | |
| 0 to 0.1 |
| Copper (Cu), % | 3.5 to 4.5 | |
| 3.5 to 4.5 |
| Iron (Fe), % | 0 to 0.7 | |
| 0 to 0.7 |
| Magnesium (Mg), % | 0.4 to 0.8 | |
| 0.4 to 1.0 |
| Manganese (Mn), % | 0.4 to 1.0 | |
| 0.4 to 1.0 |
| Silicon (Si), % | 0.2 to 0.8 | |
| 0.2 to 0.8 |
| Titanium (Ti), % | 0 to 0.15 | |
| 0 to 0.25 |
| Zinc (Zn), % | 0 to 0.25 | |
| 0 to 0.25 |
| Zirconium (Zr), % | 0 | |
| 0 to 0.25 |
| Residuals, % | 0 to 0.15 | |
| 0 to 0.15 |