7178 Aluminum vs. N06230 Nickel
7178 aluminum belongs to the aluminum alloys classification, while N06230 nickel belongs to the nickel alloys. 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 7178 aluminum and the bottom bar is N06230 nickel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 71 | |
| 210 |
| Elongation at Break, % | 4.5 to 12 | |
| 38 to 48 |
| Fatigue Strength, MPa | 120 to 210 | |
| 250 to 360 |
| Poisson's Ratio | 0.32 | |
| 0.28 |
| Shear Modulus, GPa | 27 | |
| 83 |
| Shear Strength, MPa | 140 to 380 | |
| 420 to 600 |
| Tensile Strength: Ultimate (UTS), MPa | 240 to 640 | |
| 620 to 840 |
| Tensile Strength: Yield (Proof), MPa | 120 to 560 | |
| 330 to 400 |
Thermal Properties
| Latent Heat of Fusion, J/g | 370 | |
| 310 |
| Maximum Temperature: Mechanical, °C | 180 | |
| 990 |
| Melting Completion (Liquidus), °C | 630 | |
| 1370 |
| Melting Onset (Solidus), °C | 480 | |
| 1300 |
| Specific Heat Capacity, J/kg-K | 860 | |
| 420 |
| Thermal Conductivity, W/m-K | 130 | |
| 8.9 |
| Thermal Expansion, µm/m-K | 23 | |
| 13 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 31 | |
| 1.4 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 91 | |
| 1.3 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 10 | |
| 85 |
| Density, g/cm3 | 3.1 | |
| 9.5 |
| Embodied Carbon, kg CO2/kg material | 8.2 | |
| 11 |
| Embodied Energy, MJ/kg | 150 | |
| 160 |
| Embodied Water, L/kg | 1110 | |
| 290 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 24 to 52 | |
| 200 to 330 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 110 to 2220 | |
| 250 to 380 |
| Stiffness to Weight: Axial, points | 13 | |
| 12 |
| Stiffness to Weight: Bending, points | 45 | |
| 21 |
| Strength to Weight: Axial, points | 21 to 58 | |
| 18 to 25 |
| Strength to Weight: Bending, points | 28 to 54 | |
| 17 to 21 |
| Thermal Diffusivity, mm2/s | 47 | |
| 2.3 |
| Thermal Shock Resistance, points | 10 to 28 | |
| 17 to 23 |
Alloy Composition
| Aluminum (Al), % | 85.4 to 89.5 | |
| 0.2 to 0.5 |
| Boron (B), % | 0 | |
| 0 to 0.015 |
| Carbon (C), % | 0 | |
| 0.050 to 0.15 |
| Chromium (Cr), % | 0.18 to 0.28 | |
| 20 to 24 |
| Cobalt (Co), % | 0 | |
| 0 to 5.0 |
| Copper (Cu), % | 1.6 to 2.4 | |
| 0 |
| Iron (Fe), % | 0 to 0.5 | |
| 0 to 3.0 |
| Lanthanum (La), % | 0 | |
| 0.0050 to 0.050 |
| Magnesium (Mg), % | 2.4 to 3.1 | |
| 0 |
| Manganese (Mn), % | 0 to 0.3 | |
| 0.3 to 1.0 |
| Molybdenum (Mo), % | 0 | |
| 1.0 to 3.0 |
| Nickel (Ni), % | 0 | |
| 47.5 to 65.2 |
| Phosphorus (P), % | 0 | |
| 0 to 0.030 |
| Silicon (Si), % | 0 to 0.4 | |
| 0.25 to 0.75 |
| Sulfur (S), % | 0 | |
| 0 to 0.015 |
| Titanium (Ti), % | 0 to 0.2 | |
| 0 |
| Tungsten (W), % | 0 | |
| 13 to 15 |
| Zinc (Zn), % | 6.3 to 7.3 | |
| 0 |
| Residuals, % | 0 to 0.15 | |
| 0 |