Nickel 684 vs. 2011A Aluminum
Nickel 684 belongs to the nickel alloys classification, while 2011A aluminum belongs to the aluminum alloys. There are 26 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown. Please note that the two materials have significantly dissimilar densities. This means that additional care is required when interpreting the data, because some material properties are based on units of mass, while others are based on units of area or volume.
For each property being compared, the top bar is nickel 684 and the bottom bar is 2011A aluminum.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 200 | |
| 70 |
| Elongation at Break, % | 11 | |
| 6.8 to 16 |
| Fatigue Strength, MPa | 390 | |
| 75 to 100 |
| Poisson's Ratio | 0.29 | |
| 0.33 |
| Shear Modulus, GPa | 76 | |
| 26 |
| Shear Strength, MPa | 710 | |
| 190 to 250 |
| Tensile Strength: Ultimate (UTS), MPa | 1190 | |
| 310 to 410 |
| Tensile Strength: Yield (Proof), MPa | 800 | |
| 140 to 310 |
Thermal Properties
| Latent Heat of Fusion, J/g | 320 | |
| 390 |
| Maximum Temperature: Mechanical, °C | 1000 | |
| 190 |
| Melting Completion (Liquidus), °C | 1370 | |
| 660 |
| Melting Onset (Solidus), °C | 1320 | |
| 550 |
| Specific Heat Capacity, J/kg-K | 470 | |
| 870 |
| Thermal Expansion, µm/m-K | 13 | |
| 23 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 75 | |
| 11 |
| Density, g/cm3 | 8.3 | |
| 3.1 |
| Embodied Carbon, kg CO2/kg material | 10 | |
| 7.9 |
| Embodied Energy, MJ/kg | 140 | |
| 150 |
| Embodied Water, L/kg | 360 | |
| 1150 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 120 | |
| 20 to 40 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 1610 | |
| 140 to 670 |
| Stiffness to Weight: Axial, points | 13 | |
| 13 |
| Stiffness to Weight: Bending, points | 23 | |
| 44 |
| Strength to Weight: Axial, points | 40 | |
| 28 to 37 |
| Strength to Weight: Bending, points | 30 | |
| 33 to 40 |
| Thermal Shock Resistance, points | 34 | |
| 14 to 18 |
Alloy Composition
| Aluminum (Al), % | 2.5 to 3.3 | |
| 91.5 to 95.1 |
| Bismuth (Bi), % | 0 | |
| 0.2 to 0.6 |
| Boron (B), % | 0.0030 to 0.010 | |
| 0 |
| Carbon (C), % | 0 to 0.15 | |
| 0 |
| Chromium (Cr), % | 15 to 20 | |
| 0 |
| Cobalt (Co), % | 13 to 20 | |
| 0 |
| Copper (Cu), % | 0 to 0.15 | |
| 4.5 to 6.0 |
| Iron (Fe), % | 0 to 4.0 | |
| 0 to 0.5 |
| Lead (Pb), % | 0 | |
| 0.2 to 0.6 |
| Manganese (Mn), % | 0 to 0.75 | |
| 0 |
| Molybdenum (Mo), % | 3.0 to 5.0 | |
| 0 |
| Nickel (Ni), % | 42.7 to 64 | |
| 0 |
| Phosphorus (P), % | 0 to 0.015 | |
| 0 |
| Silicon (Si), % | 0 to 0.75 | |
| 0 to 0.4 |
| Sulfur (S), % | 0 to 0.015 | |
| 0 |
| Titanium (Ti), % | 2.5 to 3.3 | |
| 0 |
| Zinc (Zn), % | 0 | |
| 0 to 0.3 |
| Residuals, % | 0 | |
| 0 to 0.15 |