EN AC-44400 Aluminum vs. EN AC-21100 Aluminum
Both EN AC-44400 aluminum and EN AC-21100 aluminum are aluminum alloys. They have a moderately high 90% of their average alloy composition in common.
For each property being compared, the top bar is EN AC-44400 aluminum and the bottom bar is EN AC-21100 aluminum.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 61 | |
| 100 to 110 |
| Elastic (Young's, Tensile) Modulus, GPa | 71 | |
| 71 |
| Elongation at Break, % | 4.1 | |
| 6.2 to 7.3 |
| Fatigue Strength, MPa | 79 | |
| 79 to 87 |
| Poisson's Ratio | 0.33 | |
| 0.33 |
| Shear Modulus, GPa | 27 | |
| 27 |
| Tensile Strength: Ultimate (UTS), MPa | 210 | |
| 340 to 350 |
| Tensile Strength: Yield (Proof), MPa | 110 | |
| 210 to 240 |
Thermal Properties
| Latent Heat of Fusion, J/g | 540 | |
| 390 |
| Maximum Temperature: Mechanical, °C | 170 | |
| 170 |
| Melting Completion (Liquidus), °C | 600 | |
| 670 |
| Melting Onset (Solidus), °C | 590 | |
| 550 |
| Specific Heat Capacity, J/kg-K | 900 | |
| 880 |
| Thermal Conductivity, W/m-K | 140 | |
| 130 |
| Thermal Expansion, µm/m-K | 22 | |
| 23 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 33 | |
| 34 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 110 | |
| 100 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 9.5 | |
| 11 |
| Density, g/cm3 | 2.6 | |
| 3.0 |
| Embodied Carbon, kg CO2/kg material | 7.8 | |
| 8.0 |
| Embodied Energy, MJ/kg | 150 | |
| 150 |
| Embodied Water, L/kg | 1080 | |
| 1150 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 7.3 | |
| 19 to 21 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 85 | |
| 300 to 400 |
| Stiffness to Weight: Axial, points | 15 | |
| 13 |
| Stiffness to Weight: Bending, points | 54 | |
| 46 |
| Strength to Weight: Axial, points | 23 | |
| 31 to 33 |
| Strength to Weight: Bending, points | 31 | |
| 36 to 37 |
| Thermal Diffusivity, mm2/s | 60 | |
| 48 |
| Thermal Shock Resistance, points | 9.8 | |
| 15 |
Alloy Composition
| Aluminum (Al), % | 87.1 to 92 | |
| 93.4 to 95.7 |
| Copper (Cu), % | 0 to 0.1 | |
| 4.2 to 5.2 |
| Iron (Fe), % | 0 to 0.65 | |
| 0 to 0.19 |
| Lead (Pb), % | 0 to 0.050 | |
| 0 |
| Magnesium (Mg), % | 0 to 0.1 | |
| 0 |
| Manganese (Mn), % | 0 to 0.5 | |
| 0 to 0.55 |
| Nickel (Ni), % | 0 to 0.050 | |
| 0 |
| Silicon (Si), % | 8.0 to 11 | |
| 0 to 0.18 |
| Tin (Sn), % | 0 to 0.050 | |
| 0 |
| Titanium (Ti), % | 0 to 0.15 | |
| 0.15 to 0.3 |
| Zinc (Zn), % | 0 to 0.15 | |
| 0 to 0.070 |
| Residuals, % | 0 | |
| 0 to 0.1 |