772.0 Aluminum vs. EN 1.7230 Steel
772.0 aluminum belongs to the aluminum alloys classification, while EN 1.7230 steel belongs to the iron alloys. There are 29 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown. Please note that the two materials have significantly dissimilar densities. This means that additional care is required when interpreting the data, because some material properties are based on units of mass, while others are based on units of area or volume.
For each property being compared, the top bar is 772.0 aluminum and the bottom bar is EN 1.7230 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 69 | |
| 190 |
| Elongation at Break, % | 6.3 to 8.4 | |
| 11 to 12 |
| Fatigue Strength, MPa | 94 to 160 | |
| 320 to 460 |
| Poisson's Ratio | 0.32 | |
| 0.29 |
| Shear Modulus, GPa | 26 | |
| 73 |
| Tensile Strength: Ultimate (UTS), MPa | 260 to 320 | |
| 720 to 910 |
| Tensile Strength: Yield (Proof), MPa | 220 to 250 | |
| 510 to 740 |
Thermal Properties
| Latent Heat of Fusion, J/g | 380 | |
| 250 |
| Maximum Temperature: Mechanical, °C | 180 | |
| 420 |
| Melting Completion (Liquidus), °C | 630 | |
| 1460 |
| Melting Onset (Solidus), °C | 580 | |
| 1420 |
| Specific Heat Capacity, J/kg-K | 870 | |
| 470 |
| Thermal Conductivity, W/m-K | 150 | |
| 44 |
| Thermal Expansion, µm/m-K | 24 | |
| 13 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 35 | |
| 7.3 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 110 | |
| 8.4 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 9.5 | |
| 2.4 |
| Density, g/cm3 | 3.0 | |
| 7.8 |
| Embodied Carbon, kg CO2/kg material | 8.0 | |
| 1.5 |
| Embodied Energy, MJ/kg | 150 | |
| 20 |
| Embodied Water, L/kg | 1140 | |
| 51 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 16 to 25 | |
| 79 to 97 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 350 to 430 | |
| 700 to 1460 |
| Stiffness to Weight: Axial, points | 13 | |
| 13 |
| Stiffness to Weight: Bending, points | 46 | |
| 24 |
| Strength to Weight: Axial, points | 25 to 31 | |
| 26 to 32 |
| Strength to Weight: Bending, points | 31 to 36 | |
| 23 to 27 |
| Thermal Diffusivity, mm2/s | 58 | |
| 12 |
| Thermal Shock Resistance, points | 11 to 14 | |
| 21 to 27 |
Alloy Composition
| Aluminum (Al), % | 91.2 to 93.2 | |
| 0 |
| Carbon (C), % | 0 | |
| 0.3 to 0.37 |
| Chromium (Cr), % | 0.060 to 0.2 | |
| 0.8 to 1.2 |
| Copper (Cu), % | 0 to 0.1 | |
| 0 |
| Iron (Fe), % | 0 to 0.15 | |
| 96.7 to 98.3 |
| Magnesium (Mg), % | 0.6 to 0.8 | |
| 0 |
| Manganese (Mn), % | 0 to 0.1 | |
| 0.5 to 0.8 |
| Molybdenum (Mo), % | 0 | |
| 0.15 to 0.3 |
| Phosphorus (P), % | 0 | |
| 0 to 0.025 |
| Silicon (Si), % | 0 to 0.15 | |
| 0 to 0.6 |
| Sulfur (S), % | 0 | |
| 0 to 0.030 |
| Titanium (Ti), % | 0.1 to 0.2 | |
| 0 |
| Zinc (Zn), % | 6.0 to 7.0 | |
| 0 |
| Residuals, % | 0 to 0.15 | |
| 0 |