5021 Aluminum vs. EN 1.7336 Steel
5021 aluminum belongs to the aluminum alloys classification, while EN 1.7336 steel belongs to the iron alloys. There are 30 material properties with values for both materials. Properties with values for just one material (3, 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 5021 aluminum and the bottom bar is EN 1.7336 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 68 | |
| 190 |
| Elongation at Break, % | 1.1 to 3.4 | |
| 22 |
| Fatigue Strength, MPa | 85 to 110 | |
| 240 to 310 |
| Poisson's Ratio | 0.33 | |
| 0.29 |
| Shear Modulus, GPa | 26 | |
| 73 |
| Shear Strength, MPa | 170 | |
| 370 |
| Tensile Strength: Ultimate (UTS), MPa | 300 to 310 | |
| 590 |
| Tensile Strength: Yield (Proof), MPa | 240 to 270 | |
| 340 to 440 |
Thermal Properties
| Latent Heat of Fusion, J/g | 400 | |
| 260 |
| Maximum Temperature: Mechanical, °C | 180 | |
| 430 |
| Melting Completion (Liquidus), °C | 640 | |
| 1460 |
| Melting Onset (Solidus), °C | 590 | |
| 1420 |
| Specific Heat Capacity, J/kg-K | 900 | |
| 470 |
| Thermal Conductivity, W/m-K | 140 | |
| 40 |
| Thermal Expansion, µm/m-K | 23 | |
| 13 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 35 | |
| 7.5 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 120 | |
| 8.6 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 9.5 | |
| 3.1 |
| Density, g/cm3 | 2.7 | |
| 7.8 |
| Embodied Carbon, kg CO2/kg material | 8.6 | |
| 1.6 |
| Embodied Energy, MJ/kg | 150 | |
| 21 |
| Embodied Water, L/kg | 1180 | |
| 53 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 3.1 to 10 | |
| 110 to 120 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 440 to 550 | |
| 310 to 510 |
| Stiffness to Weight: Axial, points | 14 | |
| 13 |
| Stiffness to Weight: Bending, points | 50 | |
| 24 |
| Strength to Weight: Axial, points | 30 to 32 | |
| 21 |
| Strength to Weight: Bending, points | 37 | |
| 20 |
| Thermal Diffusivity, mm2/s | 57 | |
| 11 |
| Thermal Shock Resistance, points | 13 to 14 | |
| 17 |
Alloy Composition
| Aluminum (Al), % | 95.2 to 97.7 | |
| 0 |
| Carbon (C), % | 0 | |
| 0 to 0.17 |
| Chromium (Cr), % | 0 to 0.15 | |
| 1.0 to 1.5 |
| Copper (Cu), % | 0 to 0.15 | |
| 0 to 0.3 |
| Iron (Fe), % | 0 to 0.5 | |
| 95.6 to 97.7 |
| Magnesium (Mg), % | 2.2 to 2.8 | |
| 0 |
| Manganese (Mn), % | 0.1 to 0.5 | |
| 0.4 to 0.65 |
| Molybdenum (Mo), % | 0 | |
| 0.45 to 0.65 |
| Nickel (Ni), % | 0 | |
| 0 to 0.3 |
| Nitrogen (N), % | 0 | |
| 0 to 0.012 |
| Phosphorus (P), % | 0 | |
| 0 to 0.015 |
| Silicon (Si), % | 0 to 0.4 | |
| 0.5 to 0.8 |
| Sulfur (S), % | 0 | |
| 0 to 0.0050 |
| Zinc (Zn), % | 0 to 0.15 | |
| 0 |
| Residuals, % | 0 to 0.15 | |
| 0 |