1235 Aluminum vs. 7175 Aluminum
Both 1235 aluminum and 7175 aluminum are aluminum alloys. They have a moderately high 90% of their average alloy composition in common.
For each property being compared, the top bar is 1235 aluminum and the bottom bar is 7175 aluminum.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 69 | |
| 70 |
| Elongation at Break, % | 28 to 34 | |
| 3.8 to 5.9 |
| Fatigue Strength, MPa | 23 to 58 | |
| 150 to 180 |
| Poisson's Ratio | 0.33 | |
| 0.32 |
| Shear Modulus, GPa | 26 | |
| 26 |
| Shear Strength, MPa | 52 to 56 | |
| 290 to 330 |
| Tensile Strength: Ultimate (UTS), MPa | 80 to 84 | |
| 520 to 570 |
| Tensile Strength: Yield (Proof), MPa | 23 to 57 | |
| 430 to 490 |
Thermal Properties
| Latent Heat of Fusion, J/g | 400 | |
| 380 |
| Maximum Temperature: Mechanical, °C | 170 | |
| 180 |
| Melting Completion (Liquidus), °C | 640 | |
| 640 |
| Melting Onset (Solidus), °C | 640 | |
| 480 |
| Specific Heat Capacity, J/kg-K | 900 | |
| 870 |
| Thermal Conductivity, W/m-K | 230 | |
| 140 |
| Thermal Expansion, µm/m-K | 23 | |
| 23 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 60 | |
| 33 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 200 | |
| 99 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 9.5 | |
| 10 |
| Density, g/cm3 | 2.7 | |
| 3.0 |
| Embodied Carbon, kg CO2/kg material | 8.3 | |
| 8.2 |
| Embodied Energy, MJ/kg | 160 | |
| 150 |
| Embodied Water, L/kg | 1190 | |
| 1130 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 17 to 25 | |
| 18 to 29 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 3.8 to 24 | |
| 1310 to 1730 |
| Stiffness to Weight: Axial, points | 14 | |
| 13 |
| Stiffness to Weight: Bending, points | 50 | |
| 46 |
| Strength to Weight: Axial, points | 8.2 to 8.6 | |
| 48 to 52 |
| Strength to Weight: Bending, points | 15 to 16 | |
| 48 to 51 |
| Thermal Diffusivity, mm2/s | 93 | |
| 53 |
| Thermal Shock Resistance, points | 3.6 to 3.7 | |
| 23 to 25 |
Alloy Composition
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| Aluminum (Al), % | 99.35 to 100 | |
| 88 to 91.4 |
| Chromium (Cr), % | 0 | |
| 0.18 to 0.28 |
| Copper (Cu), % | 0 to 0.050 | |
| 1.2 to 2.0 |
| Iron (Fe), % | 0 to 0.65 | |
| 0 to 0.2 |
| Magnesium (Mg), % | 0 to 0.050 | |
| 2.1 to 2.9 |
| Manganese (Mn), % | 0 to 0.050 | |
| 0 to 0.1 |
| Silicon (Si), % | 0 to 0.65 | |
| 0 to 0.15 |
| Titanium (Ti), % | 0 to 0.060 | |
| 0 to 0.1 |
| Vanadium (V), % | 0 to 0.050 | |
| 0 |
| Zinc (Zn), % | 0 to 0.1 | |
| 5.1 to 6.1 |
| Residuals, % | 0 | |
| 0 to 0.15 |