EN AC-21100 Aluminum vs. 771.0 Aluminum
Both EN AC-21100 aluminum and 771.0 aluminum are aluminum alloys. They have a moderately high 92% 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 EN AC-21100 aluminum and the bottom bar is 771.0 aluminum.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 100 to 110 | |
| 85 to 120 |
| Elastic (Young's, Tensile) Modulus, GPa | 71 | |
| 70 |
| Elongation at Break, % | 6.2 to 7.3 | |
| 1.7 to 6.5 |
| Fatigue Strength, MPa | 79 to 87 | |
| 92 to 180 |
| Poisson's Ratio | 0.33 | |
| 0.32 |
| Shear Modulus, GPa | 27 | |
| 26 |
| Tensile Strength: Ultimate (UTS), MPa | 340 to 350 | |
| 250 to 370 |
| Tensile Strength: Yield (Proof), MPa | 210 to 240 | |
| 210 to 350 |
Thermal Properties
| Latent Heat of Fusion, J/g | 390 | |
| 380 |
| Maximum Temperature: Mechanical, °C | 170 | |
| 180 |
| Melting Completion (Liquidus), °C | 670 | |
| 630 |
| Melting Onset (Solidus), °C | 550 | |
| 620 |
| Specific Heat Capacity, J/kg-K | 880 | |
| 870 |
| Thermal Conductivity, W/m-K | 130 | |
| 140 to 150 |
| Thermal Expansion, µm/m-K | 23 | |
| 24 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 34 | |
| 27 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 100 | |
| 82 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 11 | |
| 9.5 |
| Density, g/cm3 | 3.0 | |
| 3.0 |
| Embodied Carbon, kg CO2/kg material | 8.0 | |
| 8.0 |
| Embodied Energy, MJ/kg | 150 | |
| 150 |
| Embodied Water, L/kg | 1150 | |
| 1130 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 19 to 21 | |
| 4.4 to 20 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 300 to 400 | |
| 310 to 900 |
| Stiffness to Weight: Axial, points | 13 | |
| 13 |
| Stiffness to Weight: Bending, points | 46 | |
| 46 |
| Strength to Weight: Axial, points | 31 to 33 | |
| 23 to 35 |
| Strength to Weight: Bending, points | 36 to 37 | |
| 29 to 39 |
| Thermal Diffusivity, mm2/s | 48 | |
| 54 to 58 |
| Thermal Shock Resistance, points | 15 | |
| 11 to 16 |
Alloy Composition
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| Aluminum (Al), % | 93.4 to 95.7 | |
| 90.5 to 92.5 |
| Chromium (Cr), % | 0 | |
| 0.060 to 0.2 |
| Copper (Cu), % | 4.2 to 5.2 | |
| 0 to 0.1 |
| Iron (Fe), % | 0 to 0.19 | |
| 0 to 0.15 |
| Magnesium (Mg), % | 0 | |
| 0.8 to 1.0 |
| Manganese (Mn), % | 0 to 0.55 | |
| 0 to 0.1 |
| Silicon (Si), % | 0 to 0.18 | |
| 0 to 0.15 |
| Titanium (Ti), % | 0.15 to 0.3 | |
| 0.1 to 0.2 |
| Zinc (Zn), % | 0 to 0.070 | |
| 6.5 to 7.5 |
| Residuals, % | 0 to 0.1 | |
| 0 to 0.15 |