8021 Aluminum vs. Sintered 6061 Aluminum
Both 8021 aluminum and sintered 6061 aluminum are aluminum alloys. They have a very high 98% of their average alloy composition in common.
For each property being compared, the top bar is 8021 aluminum and the bottom bar is sintered 6061 aluminum.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 70 | |
| 68 |
| Elongation at Break, % | 2.3 | |
| 0.5 to 6.0 |
| Fatigue Strength, MPa | 61 | |
| 32 to 62 |
| Poisson's Ratio | 0.33 | |
| 0.33 |
| Shear Modulus, GPa | 26 | |
| 25 |
| Tensile Strength: Ultimate (UTS), MPa | 160 | |
| 83 to 210 |
| Tensile Strength: Yield (Proof), MPa | 130 | |
| 62 to 190 |
Thermal Properties
| Latent Heat of Fusion, J/g | 400 | |
| 400 |
| Maximum Temperature: Mechanical, °C | 170 | |
| 170 |
| Melting Completion (Liquidus), °C | 650 | |
| 640 |
| Melting Onset (Solidus), °C | 640 | |
| 610 |
| Specific Heat Capacity, J/kg-K | 900 | |
| 900 |
| Thermal Conductivity, W/m-K | 220 | |
| 200 |
| Thermal Expansion, µm/m-K | 23 | |
| 23 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 56 | |
| 52 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 180 | |
| 170 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 9.0 | |
| 9.5 |
| Density, g/cm3 | 2.8 | |
| 2.7 |
| Embodied Carbon, kg CO2/kg material | 8.1 | |
| 8.3 |
| Embodied Energy, MJ/kg | 150 | |
| 150 |
| Embodied Water, L/kg | 1180 | |
| 1180 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 3.4 | |
| 0.68 to 7.0 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 130 | |
| 28 to 280 |
| Stiffness to Weight: Axial, points | 14 | |
| 14 |
| Stiffness to Weight: Bending, points | 49 | |
| 51 |
| Strength to Weight: Axial, points | 16 | |
| 8.6 to 21 |
| Strength to Weight: Bending, points | 23 | |
| 16 to 29 |
| Thermal Diffusivity, mm2/s | 88 | |
| 81 |
| Thermal Shock Resistance, points | 7.0 | |
| 3.8 to 9.4 |
Alloy Composition
| Aluminum (Al), % | 98 to 98.8 | |
| 96 to 99.4 |
| Copper (Cu), % | 0 to 0.050 | |
| 0 to 0.5 |
| Iron (Fe), % | 1.2 to 1.7 | |
| 0 |
| Magnesium (Mg), % | 0 | |
| 0.4 to 1.2 |
| Silicon (Si), % | 0 to 0.15 | |
| 0.2 to 0.8 |
| Residuals, % | 0 | |
| 0 to 1.5 |