A390.0-T7 Aluminum vs. EN AC-21200-T7
Both A390.0-T7 aluminum and EN AC-21200-T7 are aluminum alloys. Both are furnished in the T7 temper. They have 83% of their average alloy composition in common.
For each property being compared, the top bar is A390.0-T7 aluminum and the bottom bar is EN AC-21200-T7.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 120 | |
| 130 |
| Elastic (Young's, Tensile) Modulus, GPa | 75 | |
| 71 |
| Elongation at Break, % | 0.87 | |
| 3.9 |
| Fatigue Strength, MPa | 100 | |
| 130 |
| Poisson's Ratio | 0.33 | |
| 0.33 |
| Shear Modulus, GPa | 28 | |
| 27 |
| Tensile Strength: Ultimate (UTS), MPa | 260 | |
| 440 |
| Tensile Strength: Yield (Proof), MPa | 260 | |
| 360 |
Thermal Properties
| Latent Heat of Fusion, J/g | 640 | |
| 390 |
| Maximum Temperature: Mechanical, °C | 170 | |
| 170 |
| Melting Completion (Liquidus), °C | 580 | |
| 660 |
| Melting Onset (Solidus), °C | 480 | |
| 550 |
| Specific Heat Capacity, J/kg-K | 880 | |
| 880 |
| Thermal Conductivity, W/m-K | 130 | |
| 130 |
| Thermal Expansion, µm/m-K | 20 | |
| 23 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 20 | |
| 34 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 67 | |
| 100 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 11 | |
| 10 |
| Density, g/cm3 | 2.7 | |
| 3.0 |
| Embodied Carbon, kg CO2/kg material | 7.3 | |
| 8.0 |
| Embodied Energy, MJ/kg | 140 | |
| 150 |
| Embodied Water, L/kg | 950 | |
| 1150 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 2.2 | |
| 16 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 440 | |
| 930 |
| Stiffness to Weight: Axial, points | 15 | |
| 13 |
| Stiffness to Weight: Bending, points | 52 | |
| 46 |
| Strength to Weight: Axial, points | 26 | |
| 40 |
| Strength to Weight: Bending, points | 33 | |
| 43 |
| Thermal Diffusivity, mm2/s | 56 | |
| 49 |
| Thermal Shock Resistance, points | 12 | |
| 19 |
Alloy Composition
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| Aluminum (Al), % | 75.3 to 79.6 | |
| 93.3 to 95.7 |
| Copper (Cu), % | 4.0 to 5.0 | |
| 4.0 to 5.0 |
| Iron (Fe), % | 0 to 0.5 | |
| 0 to 0.2 |
| Lead (Pb), % | 0 | |
| 0 to 0.030 |
| Magnesium (Mg), % | 0.45 to 0.65 | |
| 0.15 to 0.5 |
| Manganese (Mn), % | 0 to 0.1 | |
| 0.2 to 0.5 |
| Nickel (Ni), % | 0 | |
| 0 to 0.050 |
| Silicon (Si), % | 16 to 18 | |
| 0 to 0.1 |
| Tin (Sn), % | 0 | |
| 0 to 0.030 |
| Titanium (Ti), % | 0 to 0.2 | |
| 0 to 0.1 |
| Zinc (Zn), % | 0 to 0.1 | |
| 0 to 0.1 |
| Residuals, % | 0 to 0.2 | |
| 0 to 0.1 |