EN 1.7108 Steel vs. EN AC-45000 Aluminum
EN 1.7108 steel belongs to the iron alloys classification, while EN AC-45000 aluminum belongs to the aluminum alloys. There are 25 material properties with values for both materials. Properties with values for just one material (5, 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 EN 1.7108 steel and the bottom bar is EN AC-45000 aluminum.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 200 to 510 | |
| 77 |
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 73 |
| Poisson's Ratio | 0.29 | |
| 0.33 |
| Shear Modulus, GPa | 72 | |
| 27 |
| Tensile Strength: Ultimate (UTS), MPa | 670 to 2070 | |
| 180 |
Thermal Properties
| Latent Heat of Fusion, J/g | 280 | |
| 470 |
| Maximum Temperature: Mechanical, °C | 410 | |
| 180 |
| Melting Completion (Liquidus), °C | 1430 | |
| 640 |
| Melting Onset (Solidus), °C | 1390 | |
| 520 |
| Specific Heat Capacity, J/kg-K | 480 | |
| 870 |
| Thermal Conductivity, W/m-K | 46 | |
| 120 |
| Thermal Expansion, µm/m-K | 13 | |
| 22 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 7.4 | |
| 27 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 8.7 | |
| 81 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 2.1 | |
| 11 |
| Density, g/cm3 | 7.7 | |
| 3.0 |
| Embodied Carbon, kg CO2/kg material | 1.5 | |
| 7.7 |
| Embodied Energy, MJ/kg | 20 | |
| 140 |
| Embodied Water, L/kg | 47 | |
| 1070 |
Common Calculations
| Stiffness to Weight: Axial, points | 13 | |
| 14 |
| Stiffness to Weight: Bending, points | 25 | |
| 47 |
| Strength to Weight: Axial, points | 24 to 75 | |
| 17 |
| Strength to Weight: Bending, points | 22 to 47 | |
| 24 |
| Thermal Diffusivity, mm2/s | 12 | |
| 47 |
| Thermal Shock Resistance, points | 20 to 63 | |
| 8.0 |
Alloy Composition
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| Aluminum (Al), % | 0 | |
| 82.2 to 91.8 |
| Carbon (C), % | 0.57 to 0.65 | |
| 0 |
| Chromium (Cr), % | 0.2 to 0.45 | |
| 0 to 0.15 |
| Copper (Cu), % | 0 | |
| 3.0 to 5.0 |
| Iron (Fe), % | 95.9 to 96.9 | |
| 0 to 1.0 |
| Lead (Pb), % | 0 | |
| 0 to 0.3 |
| Magnesium (Mg), % | 0 | |
| 0 to 0.55 |
| Manganese (Mn), % | 0.7 to 1.0 | |
| 0.2 to 0.65 |
| Nickel (Ni), % | 0 | |
| 0 to 0.45 |
| Phosphorus (P), % | 0 to 0.025 | |
| 0 |
| Silicon (Si), % | 1.6 to 2.0 | |
| 5.0 to 7.0 |
| Sulfur (S), % | 0 to 0.025 | |
| 0 |
| Tin (Sn), % | 0 | |
| 0 to 0.15 |
| Titanium (Ti), % | 0 | |
| 0 to 0.25 |
| Zinc (Zn), % | 0 | |
| 0 to 2.0 |
| Residuals, % | 0 | |
| 0 to 0.35 |