2117 Aluminum vs. EN 1.6220 Steel
2117 aluminum belongs to the aluminum alloys classification, while EN 1.6220 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 2117 aluminum and the bottom bar is EN 1.6220 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 70 | |
| 170 |
| Elastic (Young's, Tensile) Modulus, GPa | 71 | |
| 190 |
| Elongation at Break, % | 26 | |
| 23 to 25 |
| Fatigue Strength, MPa | 95 | |
| 240 to 250 |
| Poisson's Ratio | 0.33 | |
| 0.29 |
| Shear Modulus, GPa | 27 | |
| 73 |
| Tensile Strength: Ultimate (UTS), MPa | 300 | |
| 550 to 580 |
| Tensile Strength: Yield (Proof), MPa | 170 | |
| 340 |
Thermal Properties
| Latent Heat of Fusion, J/g | 400 | |
| 250 |
| Maximum Temperature: Mechanical, °C | 220 | |
| 400 |
| Melting Completion (Liquidus), °C | 650 | |
| 1460 |
| Melting Onset (Solidus), °C | 550 | |
| 1420 |
| Specific Heat Capacity, J/kg-K | 880 | |
| 470 |
| Thermal Conductivity, W/m-K | 150 | |
| 52 |
| Thermal Expansion, µm/m-K | 24 | |
| 13 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 40 | |
| 7.3 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 120 | |
| 8.4 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 10 | |
| 2.1 |
| Density, g/cm3 | 3.0 | |
| 7.8 |
| Embodied Carbon, kg CO2/kg material | 8.2 | |
| 1.5 |
| Embodied Energy, MJ/kg | 150 | |
| 19 |
| Embodied Water, L/kg | 1150 | |
| 48 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 64 | |
| 110 to 120 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 190 | |
| 300 to 310 |
| Stiffness to Weight: Axial, points | 13 | |
| 13 |
| Stiffness to Weight: Bending, points | 47 | |
| 24 |
| Strength to Weight: Axial, points | 28 | |
| 19 to 20 |
| Strength to Weight: Bending, points | 33 | |
| 19 to 20 |
| Thermal Diffusivity, mm2/s | 59 | |
| 14 |
| Thermal Shock Resistance, points | 12 | |
| 16 to 17 |
Alloy Composition
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| Aluminum (Al), % | 91 to 97.6 | |
| 0 |
| Carbon (C), % | 0 | |
| 0.17 to 0.23 |
| Chromium (Cr), % | 0 to 0.1 | |
| 0 |
| Copper (Cu), % | 2.2 to 4.5 | |
| 0 |
| Iron (Fe), % | 0 to 0.7 | |
| 96.7 to 98.8 |
| Magnesium (Mg), % | 0.2 to 1.0 | |
| 0 |
| Manganese (Mn), % | 0.4 to 1.0 | |
| 1.0 to 1.6 |
| Nickel (Ni), % | 0 | |
| 0 to 0.8 |
| Phosphorus (P), % | 0 | |
| 0 to 0.020 |
| Silicon (Si), % | 0.2 to 0.8 | |
| 0 to 0.6 |
| Sulfur (S), % | 0 | |
| 0 to 0.030 |
| Titanium (Ti), % | 0 to 0.25 | |
| 0 |
| Zinc (Zn), % | 0 to 0.25 | |
| 0 |
| Zirconium (Zr), % | 0 to 0.25 | |
| 0 |
| Residuals, % | 0 to 0.15 | |
| 0 |