6105 Aluminum vs. 6081 Aluminum
Both 6105 aluminum and 6081 aluminum are aluminum alloys. Their average alloy composition is basically identical.
For each property being compared, the top bar is 6105 aluminum and the bottom bar is 6081 aluminum.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 68 | |
| 69 |
| Elongation at Break, % | 9.0 to 16 | |
| 9.0 |
| Fatigue Strength, MPa | 95 to 130 | |
| 110 |
| Poisson's Ratio | 0.33 | |
| 0.33 |
| Shear Modulus, GPa | 26 | |
| 26 |
| Shear Strength, MPa | 120 to 170 | |
| 180 |
| Tensile Strength: Ultimate (UTS), MPa | 190 to 280 | |
| 310 |
| Tensile Strength: Yield (Proof), MPa | 120 to 270 | |
| 270 |
Thermal Properties
| Latent Heat of Fusion, J/g | 410 | |
| 410 |
| Maximum Temperature: Mechanical, °C | 160 | |
| 160 |
| Melting Completion (Liquidus), °C | 650 | |
| 640 |
| Melting Onset (Solidus), °C | 600 | |
| 610 |
| Specific Heat Capacity, J/kg-K | 900 | |
| 900 |
| Thermal Conductivity, W/m-K | 180 to 190 | |
| 180 |
| Thermal Expansion, µm/m-K | 23 | |
| 23 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 46 to 50 | |
| 47 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 150 to 170 | |
| 160 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 9.5 | |
| 9.5 |
| Density, g/cm3 | 2.7 | |
| 2.7 |
| Embodied Carbon, kg CO2/kg material | 8.3 | |
| 8.3 |
| Embodied Energy, MJ/kg | 150 | |
| 150 |
| Embodied Water, L/kg | 1180 | |
| 1180 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 25 to 27 | |
| 27 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 100 to 550 | |
| 540 |
| Stiffness to Weight: Axial, points | 14 | |
| 14 |
| Stiffness to Weight: Bending, points | 51 | |
| 50 |
| Strength to Weight: Axial, points | 20 to 29 | |
| 32 |
| Strength to Weight: Bending, points | 28 to 35 | |
| 37 |
| Thermal Diffusivity, mm2/s | 72 to 79 | |
| 74 |
| Thermal Shock Resistance, points | 8.6 to 12 | |
| 14 |
Alloy Composition
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| Aluminum (Al), % | 97.2 to 99 | |
| 96.3 to 98.6 |
| Chromium (Cr), % | 0 to 0.1 | |
| 0 to 0.1 |
| Copper (Cu), % | 0 to 0.1 | |
| 0 to 0.1 |
| Iron (Fe), % | 0 to 0.35 | |
| 0 to 0.5 |
| Magnesium (Mg), % | 0.45 to 0.8 | |
| 0.6 to 1.0 |
| Manganese (Mn), % | 0 to 0.1 | |
| 0.1 to 0.45 |
| Silicon (Si), % | 0.6 to 1.0 | |
| 0.7 to 1.1 |
| Titanium (Ti), % | 0 to 0.1 | |
| 0 to 0.15 |
| Zinc (Zn), % | 0 to 0.1 | |
| 0 to 0.2 |
| Residuals, % | 0 to 0.15 | |
| 0 to 0.15 |