EN AC-21200 Aluminum vs. EN AC-51100 Aluminum
Both EN AC-21200 aluminum and EN AC-51100 aluminum are aluminum alloys. They have a very high 95% of their average alloy composition in common.
For each property being compared, the top bar is EN AC-21200 aluminum and the bottom bar is EN AC-51100 aluminum.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 120 to 130 | |
| 57 |
| Elastic (Young's, Tensile) Modulus, GPa | 71 | |
| 68 |
| Elongation at Break, % | 3.9 to 6.2 | |
| 4.5 |
| Fatigue Strength, MPa | 110 to 130 | |
| 58 |
| Poisson's Ratio | 0.33 | |
| 0.33 |
| Shear Modulus, GPa | 27 | |
| 26 |
| Tensile Strength: Ultimate (UTS), MPa | 410 to 440 | |
| 160 |
| Tensile Strength: Yield (Proof), MPa | 270 to 360 | |
| 80 |
Thermal Properties
| Latent Heat of Fusion, J/g | 390 | |
| 400 |
| Maximum Temperature: Mechanical, °C | 170 | |
| 170 |
| Melting Completion (Liquidus), °C | 660 | |
| 640 |
| Melting Onset (Solidus), °C | 550 | |
| 620 |
| Specific Heat Capacity, J/kg-K | 880 | |
| 900 |
| Thermal Conductivity, W/m-K | 130 | |
| 130 |
| Thermal Expansion, µm/m-K | 23 | |
| 23 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 34 | |
| 34 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 100 | |
| 110 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 10 | |
| 9.5 |
| Density, g/cm3 | 3.0 | |
| 2.7 |
| Embodied Carbon, kg CO2/kg material | 8.0 | |
| 8.7 |
| Embodied Energy, MJ/kg | 150 | |
| 150 |
| Embodied Water, L/kg | 1150 | |
| 1180 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 16 to 22 | |
| 6.0 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 500 to 930 | |
| 47 |
| Stiffness to Weight: Axial, points | 13 | |
| 14 |
| Stiffness to Weight: Bending, points | 46 | |
| 51 |
| Strength to Weight: Axial, points | 38 to 40 | |
| 17 |
| Strength to Weight: Bending, points | 41 to 43 | |
| 25 |
| Thermal Diffusivity, mm2/s | 49 | |
| 53 |
| Thermal Shock Resistance, points | 18 to 19 | |
| 7.3 |
Alloy Composition
| Aluminum (Al), % | 93.3 to 95.7 | |
| 94.5 to 97.5 |
| Copper (Cu), % | 4.0 to 5.0 | |
| 0 to 0.050 |
| Iron (Fe), % | 0 to 0.2 | |
| 0 to 0.55 |
| Lead (Pb), % | 0 to 0.030 | |
| 0 |
| Magnesium (Mg), % | 0.15 to 0.5 | |
| 2.5 to 3.5 |
| Manganese (Mn), % | 0.2 to 0.5 | |
| 0 to 0.45 |
| Nickel (Ni), % | 0 to 0.050 | |
| 0 |
| Silicon (Si), % | 0 to 0.1 | |
| 0 to 0.55 |
| Tin (Sn), % | 0 to 0.030 | |
| 0 |
| Titanium (Ti), % | 0 to 0.1 | |
| 0 to 0.2 |
| Zinc (Zn), % | 0 to 0.1 | |
| 0 to 0.1 |
| Residuals, % | 0 | |
| 0 to 0.15 |