705.0 Aluminum vs. 328.0 Aluminum
Both 705.0 aluminum and 328.0 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 705.0 aluminum and the bottom bar is 328.0 aluminum.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 62 to 65 | |
| 60 to 82 |
| Elastic (Young's, Tensile) Modulus, GPa | 69 | |
| 72 |
| Elongation at Break, % | 8.4 to 10 | |
| 1.6 to 2.1 |
| Fatigue Strength, MPa | 63 to 98 | |
| 55 to 80 |
| Poisson's Ratio | 0.33 | |
| 0.33 |
| Shear Modulus, GPa | 26 | |
| 27 |
| Tensile Strength: Ultimate (UTS), MPa | 240 to 260 | |
| 200 to 270 |
| Tensile Strength: Yield (Proof), MPa | 130 | |
| 120 to 170 |
Thermal Properties
| Latent Heat of Fusion, J/g | 390 | |
| 510 |
| Maximum Temperature: Mechanical, °C | 180 | |
| 180 |
| Melting Completion (Liquidus), °C | 640 | |
| 620 |
| Melting Onset (Solidus), °C | 610 | |
| 560 |
| Solidification (Pattern Maker's) Shrinkage, % | 1.6 | |
| 1.3 |
| Specific Heat Capacity, J/kg-K | 890 | |
| 890 |
| Thermal Conductivity, W/m-K | 140 | |
| 120 |
| Thermal Expansion, µm/m-K | 24 | |
| 22 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 34 | |
| 30 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 110 | |
| 99 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 9.5 | |
| 10 |
| Density, g/cm3 | 2.8 | |
| 2.7 |
| Embodied Carbon, kg CO2/kg material | 8.4 | |
| 7.8 |
| Embodied Energy, MJ/kg | 150 | |
| 140 |
| Embodied Water, L/kg | 1170 | |
| 1070 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 18 to 20 | |
| 2.8 to 5.0 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 120 to 130 | |
| 92 to 200 |
| Stiffness to Weight: Axial, points | 14 | |
| 15 |
| Stiffness to Weight: Bending, points | 49 | |
| 51 |
| Strength to Weight: Axial, points | 24 to 26 | |
| 21 to 28 |
| Strength to Weight: Bending, points | 31 to 32 | |
| 28 to 34 |
| Thermal Diffusivity, mm2/s | 55 | |
| 50 |
| Thermal Shock Resistance, points | 11 | |
| 9.2 to 12 |
Alloy Composition
| Aluminum (Al), % | 92.3 to 98.6 | |
| 84.5 to 91.1 |
| Chromium (Cr), % | 0 to 0.4 | |
| 0 to 0.35 |
| Copper (Cu), % | 0 to 0.2 | |
| 1.0 to 2.0 |
| Iron (Fe), % | 0 to 0.8 | |
| 0 to 1.0 |
| Magnesium (Mg), % | 1.4 to 1.8 | |
| 0.2 to 0.6 |
| Manganese (Mn), % | 0 to 0.6 | |
| 0.2 to 0.6 |
| Nickel (Ni), % | 0 | |
| 0 to 0.25 |
| Silicon (Si), % | 0 to 0.2 | |
| 7.5 to 8.5 |
| Titanium (Ti), % | 0 to 0.25 | |
| 0 to 0.25 |
| Zinc (Zn), % | 0 to 3.3 | |
| 0 to 1.5 |
| Residuals, % | 0 | |
| 0 to 0.5 |