7204 Aluminum vs. 1235 Aluminum
Both 7204 aluminum and 1235 aluminum are aluminum alloys. They have a moderately high 93% of their average alloy composition in common.
For each property being compared, the top bar is 7204 aluminum and the bottom bar is 1235 aluminum.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 70 | |
| 69 |
| Elongation at Break, % | 11 to 13 | |
| 28 to 34 |
| Fatigue Strength, MPa | 110 to 130 | |
| 23 to 58 |
| Poisson's Ratio | 0.33 | |
| 0.33 |
| Shear Modulus, GPa | 26 | |
| 26 |
| Shear Strength, MPa | 130 to 220 | |
| 52 to 56 |
| Tensile Strength: Ultimate (UTS), MPa | 220 to 380 | |
| 80 to 84 |
| Tensile Strength: Yield (Proof), MPa | 120 to 310 | |
| 23 to 57 |
Thermal Properties
| Latent Heat of Fusion, J/g | 380 | |
| 400 |
| Maximum Temperature: Mechanical, °C | 210 | |
| 170 |
| Melting Completion (Liquidus), °C | 640 | |
| 640 |
| Melting Onset (Solidus), °C | 520 | |
| 640 |
| Specific Heat Capacity, J/kg-K | 880 | |
| 900 |
| Thermal Conductivity, W/m-K | 150 | |
| 230 |
| Thermal Expansion, µm/m-K | 24 | |
| 23 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 39 | |
| 60 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 120 | |
| 200 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 9.5 | |
| 9.5 |
| Density, g/cm3 | 2.9 | |
| 2.7 |
| Embodied Carbon, kg CO2/kg material | 8.4 | |
| 8.3 |
| Embodied Energy, MJ/kg | 150 | |
| 160 |
| Embodied Water, L/kg | 1140 | |
| 1190 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 25 to 40 | |
| 17 to 25 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 110 to 710 | |
| 3.8 to 24 |
| Stiffness to Weight: Axial, points | 13 | |
| 14 |
| Stiffness to Weight: Bending, points | 47 | |
| 50 |
| Strength to Weight: Axial, points | 21 to 36 | |
| 8.2 to 8.6 |
| Strength to Weight: Bending, points | 28 to 40 | |
| 15 to 16 |
| Thermal Diffusivity, mm2/s | 58 | |
| 93 |
| Thermal Shock Resistance, points | 9.4 to 16 | |
| 3.6 to 3.7 |
Alloy Composition
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| Aluminum (Al), % | 90.5 to 94.8 | |
| 99.35 to 100 |
| Chromium (Cr), % | 0 to 0.3 | |
| 0 |
| Copper (Cu), % | 0 to 0.2 | |
| 0 to 0.050 |
| Iron (Fe), % | 0 to 0.35 | |
| 0 to 0.65 |
| Magnesium (Mg), % | 1.0 to 2.0 | |
| 0 to 0.050 |
| Manganese (Mn), % | 0.2 to 0.7 | |
| 0 to 0.050 |
| Silicon (Si), % | 0 to 0.3 | |
| 0 to 0.65 |
| Titanium (Ti), % | 0 to 0.2 | |
| 0 to 0.060 |
| Vanadium (V), % | 0 to 0.1 | |
| 0 to 0.050 |
| Zinc (Zn), % | 4.0 to 5.0 | |
| 0 to 0.1 |
| Zirconium (Zr), % | 0 to 0.25 | |
| 0 |
| Residuals, % | 0 to 0.15 | |
| 0 |