242.0 Aluminum vs. 705.0 Aluminum
Both 242.0 aluminum and 705.0 aluminum are aluminum alloys. They have a moderately high 94% of their average alloy composition in common. There are 31 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 242.0 aluminum and the bottom bar is 705.0 aluminum.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 70 to 110 | |
| 62 to 65 |
| Elastic (Young's, Tensile) Modulus, GPa | 73 | |
| 69 |
| Elongation at Break, % | 0.5 to 1.5 | |
| 8.4 to 10 |
| Fatigue Strength, MPa | 55 to 110 | |
| 63 to 98 |
| Poisson's Ratio | 0.33 | |
| 0.33 |
| Shear Modulus, GPa | 27 | |
| 26 |
| Tensile Strength: Ultimate (UTS), MPa | 180 to 290 | |
| 240 to 260 |
| Tensile Strength: Yield (Proof), MPa | 120 to 220 | |
| 130 |
Thermal Properties
| Latent Heat of Fusion, J/g | 390 | |
| 390 |
| Maximum Temperature: Mechanical, °C | 210 | |
| 180 |
| Melting Completion (Liquidus), °C | 640 | |
| 640 |
| Melting Onset (Solidus), °C | 530 | |
| 610 |
| Solidification (Pattern Maker's) Shrinkage, % | 1.3 | |
| 1.6 |
| Specific Heat Capacity, J/kg-K | 870 | |
| 890 |
| Thermal Conductivity, W/m-K | 130 to 170 | |
| 140 |
| Thermal Expansion, µm/m-K | 22 | |
| 24 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 33 to 44 | |
| 34 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 96 to 130 | |
| 110 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 12 | |
| 9.5 |
| Density, g/cm3 | 3.1 | |
| 2.8 |
| Embodied Carbon, kg CO2/kg material | 8.3 | |
| 8.4 |
| Embodied Energy, MJ/kg | 150 | |
| 150 |
| Embodied Water, L/kg | 1130 | |
| 1170 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 1.3 to 3.4 | |
| 18 to 20 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 110 to 340 | |
| 120 to 130 |
| Stiffness to Weight: Axial, points | 13 | |
| 14 |
| Stiffness to Weight: Bending, points | 45 | |
| 49 |
| Strength to Weight: Axial, points | 16 to 26 | |
| 24 to 26 |
| Strength to Weight: Bending, points | 23 to 32 | |
| 31 to 32 |
| Thermal Diffusivity, mm2/s | 50 to 62 | |
| 55 |
| Thermal Shock Resistance, points | 8.0 to 13 | |
| 11 |
Alloy Composition
| Aluminum (Al), % | 88.4 to 93.6 | |
| 92.3 to 98.6 |
| Chromium (Cr), % | 0 to 0.25 | |
| 0 to 0.4 |
| Copper (Cu), % | 3.5 to 4.5 | |
| 0 to 0.2 |
| Iron (Fe), % | 0 to 1.0 | |
| 0 to 0.8 |
| Magnesium (Mg), % | 1.2 to 1.8 | |
| 1.4 to 1.8 |
| Manganese (Mn), % | 0 to 0.35 | |
| 0 to 0.6 |
| Nickel (Ni), % | 1.7 to 2.3 | |
| 0 |
| Silicon (Si), % | 0 to 0.7 | |
| 0 to 0.2 |
| Titanium (Ti), % | 0 to 0.25 | |
| 0 to 0.25 |
| Zinc (Zn), % | 0 to 0.35 | |
| 0 to 3.3 |
| Residuals, % | 0 | |
| 0 to 0.15 |