7175 Aluminum vs. 6261 Aluminum
Both 7175 aluminum and 6261 aluminum are aluminum alloys. They have a moderately high 91% of their average alloy composition in common.
For each property being compared, the top bar is 7175 aluminum and the bottom bar is 6261 aluminum.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 70 | |
| 69 |
| Elongation at Break, % | 3.8 to 5.9 | |
| 9.0 to 16 |
| Fatigue Strength, MPa | 150 to 180 | |
| 60 to 120 |
| Poisson's Ratio | 0.32 | |
| 0.33 |
| Shear Modulus, GPa | 26 | |
| 26 |
| Shear Strength, MPa | 290 to 330 | |
| 90 to 180 |
| Tensile Strength: Ultimate (UTS), MPa | 520 to 570 | |
| 150 to 300 |
| Tensile Strength: Yield (Proof), MPa | 430 to 490 | |
| 100 to 260 |
Thermal Properties
| Latent Heat of Fusion, J/g | 380 | |
| 400 |
| Maximum Temperature: Mechanical, °C | 180 | |
| 160 |
| Melting Completion (Liquidus), °C | 640 | |
| 640 |
| Melting Onset (Solidus), °C | 480 | |
| 610 |
| Specific Heat Capacity, J/kg-K | 870 | |
| 900 |
| Thermal Conductivity, W/m-K | 140 | |
| 180 |
| Thermal Expansion, µm/m-K | 23 | |
| 23 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 33 | |
| 48 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 99 | |
| 160 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 10 | |
| 9.5 |
| Density, g/cm3 | 3.0 | |
| 2.7 |
| Embodied Carbon, kg CO2/kg material | 8.2 | |
| 8.3 |
| Embodied Energy, MJ/kg | 150 | |
| 150 |
| Embodied Water, L/kg | 1130 | |
| 1180 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 18 to 29 | |
| 21 to 27 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 1310 to 1730 | |
| 77 to 500 |
| Stiffness to Weight: Axial, points | 13 | |
| 14 |
| Stiffness to Weight: Bending, points | 46 | |
| 50 |
| Strength to Weight: Axial, points | 48 to 52 | |
| 15 to 31 |
| Strength to Weight: Bending, points | 48 to 51 | |
| 23 to 37 |
| Thermal Diffusivity, mm2/s | 53 | |
| 75 |
| Thermal Shock Resistance, points | 23 to 25 | |
| 6.5 to 13 |
Alloy Composition
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| Aluminum (Al), % | 88 to 91.4 | |
| 96.6 to 98.6 |
| Chromium (Cr), % | 0.18 to 0.28 | |
| 0 to 0.1 |
| Copper (Cu), % | 1.2 to 2.0 | |
| 0.15 to 0.4 |
| Iron (Fe), % | 0 to 0.2 | |
| 0 to 0.4 |
| Magnesium (Mg), % | 2.1 to 2.9 | |
| 0.7 to 1.0 |
| Manganese (Mn), % | 0 to 0.1 | |
| 0.2 to 0.35 |
| Silicon (Si), % | 0 to 0.15 | |
| 0.4 to 0.7 |
| Titanium (Ti), % | 0 to 0.1 | |
| 0 to 0.1 |
| Zinc (Zn), % | 5.1 to 6.1 | |
| 0 to 0.2 |
| Residuals, % | 0 to 0.15 | |
| 0 to 0.15 |