7175 Aluminum vs. EN AC-21200 Aluminum
Both 7175 aluminum and EN AC-21200 aluminum are aluminum alloys. They have a moderately high 92% of their average alloy composition in common. There are 29 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.
For each property being compared, the top bar is 7175 aluminum and the bottom bar is EN AC-21200 aluminum.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 70 | |
| 71 |
| Elongation at Break, % | 3.8 to 5.9 | |
| 3.9 to 6.2 |
| Fatigue Strength, MPa | 150 to 180 | |
| 110 to 130 |
| Poisson's Ratio | 0.32 | |
| 0.33 |
| Shear Modulus, GPa | 26 | |
| 27 |
| Tensile Strength: Ultimate (UTS), MPa | 520 to 570 | |
| 410 to 440 |
| Tensile Strength: Yield (Proof), MPa | 430 to 490 | |
| 270 to 360 |
Thermal Properties
| Latent Heat of Fusion, J/g | 380 | |
| 390 |
| Maximum Temperature: Mechanical, °C | 180 | |
| 170 |
| Melting Completion (Liquidus), °C | 640 | |
| 660 |
| Melting Onset (Solidus), °C | 480 | |
| 550 |
| Specific Heat Capacity, J/kg-K | 870 | |
| 880 |
| Thermal Conductivity, W/m-K | 140 | |
| 130 |
| Thermal Expansion, µm/m-K | 23 | |
| 23 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 33 | |
| 34 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 99 | |
| 100 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 10 | |
| 10 |
| Density, g/cm3 | 3.0 | |
| 3.0 |
| Embodied Carbon, kg CO2/kg material | 8.2 | |
| 8.0 |
| Embodied Energy, MJ/kg | 150 | |
| 150 |
| Embodied Water, L/kg | 1130 | |
| 1150 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 18 to 29 | |
| 16 to 22 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 1310 to 1730 | |
| 500 to 930 |
| Stiffness to Weight: Axial, points | 13 | |
| 13 |
| Stiffness to Weight: Bending, points | 46 | |
| 46 |
| Strength to Weight: Axial, points | 48 to 52 | |
| 38 to 40 |
| Strength to Weight: Bending, points | 48 to 51 | |
| 41 to 43 |
| Thermal Diffusivity, mm2/s | 53 | |
| 49 |
| Thermal Shock Resistance, points | 23 to 25 | |
| 18 to 19 |
Alloy Composition
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| Aluminum (Al), % | 88 to 91.4 | |
| 93.3 to 95.7 |
| Chromium (Cr), % | 0.18 to 0.28 | |
| 0 |
| Copper (Cu), % | 1.2 to 2.0 | |
| 4.0 to 5.0 |
| Iron (Fe), % | 0 to 0.2 | |
| 0 to 0.2 |
| Lead (Pb), % | 0 | |
| 0 to 0.030 |
| Magnesium (Mg), % | 2.1 to 2.9 | |
| 0.15 to 0.5 |
| Manganese (Mn), % | 0 to 0.1 | |
| 0.2 to 0.5 |
| Nickel (Ni), % | 0 | |
| 0 to 0.050 |
| Silicon (Si), % | 0 to 0.15 | |
| 0 to 0.1 |
| Tin (Sn), % | 0 | |
| 0 to 0.030 |
| Titanium (Ti), % | 0 to 0.1 | |
| 0 to 0.1 |
| Zinc (Zn), % | 5.1 to 6.1 | |
| 0 to 0.1 |
| Residuals, % | 0 to 0.15 | |
| 0 to 0.1 |