7022 Aluminum vs. EN 1.4612 Stainless Steel
7022 aluminum belongs to the aluminum alloys classification, while EN 1.4612 stainless steel belongs to the iron alloys. There are 25 material properties with values for both materials. Properties with values for just one material (8, 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 7022 aluminum and the bottom bar is EN 1.4612 stainless steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 70 | |
| 190 |
| Elongation at Break, % | 6.3 to 8.0 | |
| 11 |
| Fatigue Strength, MPa | 140 to 170 | |
| 860 to 950 |
| Poisson's Ratio | 0.32 | |
| 0.28 |
| Shear Modulus, GPa | 26 | |
| 76 |
| Shear Strength, MPa | 290 to 320 | |
| 1010 to 1110 |
| Tensile Strength: Ultimate (UTS), MPa | 490 to 540 | |
| 1690 to 1850 |
| Tensile Strength: Yield (Proof), MPa | 390 to 460 | |
| 1570 to 1730 |
Thermal Properties
| Latent Heat of Fusion, J/g | 380 | |
| 280 |
| Maximum Temperature: Mechanical, °C | 200 | |
| 790 |
| Melting Completion (Liquidus), °C | 640 | |
| 1450 |
| Melting Onset (Solidus), °C | 480 | |
| 1400 |
| Specific Heat Capacity, J/kg-K | 870 | |
| 480 |
| Thermal Expansion, µm/m-K | 24 | |
| 11 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 10 | |
| 16 |
| Density, g/cm3 | 2.9 | |
| 7.9 |
| Embodied Carbon, kg CO2/kg material | 8.5 | |
| 3.6 |
| Embodied Energy, MJ/kg | 150 | |
| 50 |
| Embodied Water, L/kg | 1130 | |
| 140 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 29 to 40 | |
| 190 to 210 |
| Stiffness to Weight: Axial, points | 13 | |
| 14 |
| Stiffness to Weight: Bending, points | 47 | |
| 25 |
| Strength to Weight: Axial, points | 47 to 51 | |
| 60 to 65 |
| Strength to Weight: Bending, points | 47 to 50 | |
| 40 to 43 |
| Thermal Shock Resistance, points | 21 to 23 | |
| 58 to 63 |
Alloy Composition
| Aluminum (Al), % | 87.9 to 92.4 | |
| 1.4 to 1.8 |
| Carbon (C), % | 0 | |
| 0 to 0.015 |
| Chromium (Cr), % | 0.1 to 0.3 | |
| 11 to 12.5 |
| Copper (Cu), % | 0.5 to 1.0 | |
| 0 |
| Iron (Fe), % | 0 to 0.5 | |
| 71.5 to 75.5 |
| Magnesium (Mg), % | 2.6 to 3.7 | |
| 0 |
| Manganese (Mn), % | 0.1 to 0.4 | |
| 0 to 0.1 |
| Molybdenum (Mo), % | 0 | |
| 1.8 to 2.3 |
| Nickel (Ni), % | 0 | |
| 10.2 to 11.3 |
| Nitrogen (N), % | 0 | |
| 0 to 0.010 |
| Phosphorus (P), % | 0 | |
| 0 to 0.010 |
| Silicon (Si), % | 0 to 0.5 | |
| 0 to 0.1 |
| Sulfur (S), % | 0 | |
| 0 to 0.0050 |
| Titanium (Ti), % | 0 to 0.2 | |
| 0.2 to 0.5 |
| Zinc (Zn), % | 4.3 to 5.2 | |
| 0 |
| Zirconium (Zr), % | 0 to 0.2 | |
| 0 |
| Residuals, % | 0 to 0.15 | |
| 0 |