851.0 Aluminum vs. 771.0 Aluminum
Both 851.0 aluminum and 771.0 aluminum are aluminum alloys. They have 90% of their average alloy composition in common. There are 26 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.
For each property being compared, the top bar is 851.0 aluminum and the bottom bar is 771.0 aluminum.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 69 | |
| 70 |
| Elongation at Break, % | 3.9 to 9.1 | |
| 1.7 to 6.5 |
| Poisson's Ratio | 0.33 | |
| 0.32 |
| Shear Modulus, GPa | 26 | |
| 26 |
| Tensile Strength: Ultimate (UTS), MPa | 130 to 140 | |
| 250 to 370 |
Thermal Properties
| Latent Heat of Fusion, J/g | 410 | |
| 380 |
| Maximum Temperature: Mechanical, °C | 180 | |
| 180 |
| Melting Completion (Liquidus), °C | 630 | |
| 630 |
| Melting Onset (Solidus), °C | 360 | |
| 620 |
| Solidification (Pattern Maker's) Shrinkage, % | 1.3 | |
| 1.6 |
| Specific Heat Capacity, J/kg-K | 850 | |
| 870 |
| Thermal Conductivity, W/m-K | 180 | |
| 140 to 150 |
| Thermal Expansion, µm/m-K | 23 | |
| 24 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 46 | |
| 27 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 140 | |
| 82 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 14 | |
| 9.5 |
| Density, g/cm3 | 3.1 | |
| 3.0 |
| Embodied Carbon, kg CO2/kg material | 8.4 | |
| 8.0 |
| Embodied Energy, MJ/kg | 160 | |
| 150 |
| Embodied Water, L/kg | 1140 | |
| 1130 |
Common Calculations
| Stiffness to Weight: Axial, points | 13 | |
| 13 |
| Stiffness to Weight: Bending, points | 45 | |
| 46 |
| Strength to Weight: Axial, points | 12 to 13 | |
| 23 to 35 |
| Strength to Weight: Bending, points | 19 to 20 | |
| 29 to 39 |
| Thermal Diffusivity, mm2/s | 69 | |
| 54 to 58 |
| Thermal Shock Resistance, points | 6.1 to 6.3 | |
| 11 to 16 |
Alloy Composition
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| Aluminum (Al), % | 86.6 to 91.5 | |
| 90.5 to 92.5 |
| Chromium (Cr), % | 0 | |
| 0.060 to 0.2 |
| Copper (Cu), % | 0.7 to 1.3 | |
| 0 to 0.1 |
| Iron (Fe), % | 0 to 0.7 | |
| 0 to 0.15 |
| Magnesium (Mg), % | 0 to 0.1 | |
| 0.8 to 1.0 |
| Manganese (Mn), % | 0 to 0.1 | |
| 0 to 0.1 |
| Nickel (Ni), % | 0.3 to 0.7 | |
| 0 |
| Silicon (Si), % | 2.0 to 3.0 | |
| 0 to 0.15 |
| Tin (Sn), % | 5.5 to 7.0 | |
| 0 |
| Titanium (Ti), % | 0 to 0.2 | |
| 0.1 to 0.2 |
| Zinc (Zn), % | 0 | |
| 6.5 to 7.5 |
| Residuals, % | 0 to 0.3 | |
| 0 to 0.15 |