7021 Aluminum vs. 333.0 Aluminum
Both 7021 aluminum and 333.0 aluminum are aluminum alloys. They have 87% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.
For each property being compared, the top bar is 7021 aluminum and the bottom bar is 333.0 aluminum.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 69 | |
| 73 |
| Elongation at Break, % | 9.4 | |
| 1.0 to 2.0 |
| Fatigue Strength, MPa | 150 | |
| 83 to 100 |
| Poisson's Ratio | 0.32 | |
| 0.33 |
| Shear Modulus, GPa | 26 | |
| 28 |
| Shear Strength, MPa | 270 | |
| 190 to 230 |
| Tensile Strength: Ultimate (UTS), MPa | 460 | |
| 230 to 280 |
| Tensile Strength: Yield (Proof), MPa | 390 | |
| 130 to 210 |
Thermal Properties
| Latent Heat of Fusion, J/g | 380 | |
| 520 |
| Maximum Temperature: Mechanical, °C | 200 | |
| 170 |
| Melting Completion (Liquidus), °C | 630 | |
| 590 |
| Melting Onset (Solidus), °C | 510 | |
| 530 |
| Specific Heat Capacity, J/kg-K | 870 | |
| 880 |
| Thermal Conductivity, W/m-K | 150 | |
| 100 to 140 |
| Thermal Expansion, µm/m-K | 24 | |
| 21 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 38 | |
| 26 to 35 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 120 | |
| 83 to 110 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 9.5 | |
| 10 |
| Density, g/cm3 | 2.9 | |
| 2.8 |
| Embodied Carbon, kg CO2/kg material | 8.3 | |
| 7.6 |
| Embodied Energy, MJ/kg | 150 | |
| 140 |
| Embodied Water, L/kg | 1140 | |
| 1040 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 41 | |
| 2.1 to 4.6 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 1110 | |
| 120 to 290 |
| Stiffness to Weight: Axial, points | 13 | |
| 14 |
| Stiffness to Weight: Bending, points | 47 | |
| 49 |
| Strength to Weight: Axial, points | 44 | |
| 22 to 27 |
| Strength to Weight: Bending, points | 45 | |
| 29 to 34 |
| Thermal Diffusivity, mm2/s | 59 | |
| 42 to 57 |
| Thermal Shock Resistance, points | 20 | |
| 11 to 13 |
Alloy Composition
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| Aluminum (Al), % | 90.7 to 93.7 | |
| 81.8 to 89 |
| Chromium (Cr), % | 0 to 0.050 | |
| 0 |
| Copper (Cu), % | 0 to 0.25 | |
| 3.0 to 4.0 |
| Iron (Fe), % | 0 to 0.4 | |
| 0 to 1.0 |
| Magnesium (Mg), % | 1.2 to 1.8 | |
| 0.050 to 0.5 |
| Manganese (Mn), % | 0 to 0.1 | |
| 0 to 0.5 |
| Nickel (Ni), % | 0 | |
| 0 to 0.5 |
| Silicon (Si), % | 0 to 0.25 | |
| 8.0 to 10 |
| Titanium (Ti), % | 0 to 0.1 | |
| 0 to 0.25 |
| Zinc (Zn), % | 5.0 to 6.0 | |
| 0 to 1.0 |
| Zirconium (Zr), % | 0.080 to 0.18 | |
| 0 |
| Residuals, % | 0 to 0.15 | |
| 0 to 0.5 |