7003 Aluminum vs. EN 1.1132 Steel
7003 aluminum belongs to the aluminum alloys classification, while EN 1.1132 steel belongs to the iron alloys. There are 30 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 7003 aluminum and the bottom bar is EN 1.1132 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 70 | |
| 190 |
| Elongation at Break, % | 11 | |
| 12 to 24 |
| Fatigue Strength, MPa | 130 to 150 | |
| 180 to 280 |
| Poisson's Ratio | 0.32 | |
| 0.29 |
| Shear Modulus, GPa | 26 | |
| 73 |
| Shear Strength, MPa | 210 to 230 | |
| 260 to 310 |
| Tensile Strength: Ultimate (UTS), MPa | 350 to 390 | |
| 370 to 490 |
| Tensile Strength: Yield (Proof), MPa | 300 to 310 | |
| 240 to 400 |
Thermal Properties
| Latent Heat of Fusion, J/g | 380 | |
| 250 |
| Maximum Temperature: Mechanical, °C | 200 | |
| 400 |
| Melting Completion (Liquidus), °C | 630 | |
| 1460 |
| Melting Onset (Solidus), °C | 510 | |
| 1420 |
| Specific Heat Capacity, J/kg-K | 870 | |
| 470 |
| Thermal Conductivity, W/m-K | 150 | |
| 51 |
| Thermal Expansion, µm/m-K | 24 | |
| 12 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 36 | |
| 7.0 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 110 | |
| 8.0 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 9.5 | |
| 1.8 |
| Density, g/cm3 | 2.9 | |
| 7.9 |
| Embodied Carbon, kg CO2/kg material | 8.1 | |
| 1.4 |
| Embodied Energy, MJ/kg | 150 | |
| 18 |
| Embodied Water, L/kg | 1140 | |
| 46 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 37 to 41 | |
| 38 to 110 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 630 to 710 | |
| 160 to 430 |
| Stiffness to Weight: Axial, points | 13 | |
| 13 |
| Stiffness to Weight: Bending, points | 47 | |
| 24 |
| Strength to Weight: Axial, points | 33 to 37 | |
| 13 to 17 |
| Strength to Weight: Bending, points | 37 to 40 | |
| 15 to 18 |
| Thermal Diffusivity, mm2/s | 59 | |
| 14 |
| Thermal Shock Resistance, points | 15 to 17 | |
| 12 to 16 |
Alloy Composition
| Aluminum (Al), % | 90.6 to 94.5 | |
| 0 |
| Carbon (C), % | 0 | |
| 0.13 to 0.17 |
| Chromium (Cr), % | 0 to 0.2 | |
| 0 |
| Copper (Cu), % | 0 to 0.2 | |
| 0 to 0.25 |
| Iron (Fe), % | 0 to 0.35 | |
| 98.6 to 99.57 |
| Magnesium (Mg), % | 0.5 to 1.0 | |
| 0 |
| Manganese (Mn), % | 0 to 0.3 | |
| 0.3 to 0.6 |
| Phosphorus (P), % | 0 | |
| 0 to 0.025 |
| Silicon (Si), % | 0 to 0.3 | |
| 0 to 0.3 |
| Sulfur (S), % | 0 | |
| 0 to 0.025 |
| Titanium (Ti), % | 0 to 0.2 | |
| 0 |
| Zinc (Zn), % | 5.0 to 6.5 | |
| 0 |
| Zirconium (Zr), % | 0.050 to 0.25 | |
| 0 |
| Residuals, % | 0 to 0.15 | |
| 0 |