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2025 Aluminum vs. N08221 Nickel

2025 aluminum belongs to the aluminum alloys classification, while N08221 nickel belongs to the nickel 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 2025 aluminum and the bottom bar is N08221 nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 72
200
Elongation at Break, % 15
34
Fatigue Strength, MPa 130
190
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 27
79
Shear Strength, MPa 240
410
Tensile Strength: Ultimate (UTS), MPa 400
610
Tensile Strength: Yield (Proof), MPa 260
270

Thermal Properties

Latent Heat of Fusion, J/g 400
310
Maximum Temperature: Mechanical, °C 190
980
Melting Completion (Liquidus), °C 640
1440
Melting Onset (Solidus), °C 520
1390
Specific Heat Capacity, J/kg-K 870
460
Thermal Expansion, µm/m-K 23
13

Otherwise Unclassified Properties

Base Metal Price, % relative 10
44
Density, g/cm3 3.0
8.3
Embodied Carbon, kg CO2/kg material 7.9
7.9
Embodied Energy, MJ/kg 150
110
Embodied Water, L/kg 1130
240

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 55
170
Resilience: Unit (Modulus of Resilience), kJ/m3 450
170
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 46
24
Strength to Weight: Axial, points 37
21
Strength to Weight: Bending, points 40
19
Thermal Shock Resistance, points 18
16

Alloy Composition

Aluminum (Al), % 90.9 to 95.2
0 to 0.2
Carbon (C), % 0
0 to 0.025
Chromium (Cr), % 0 to 0.1
20 to 22
Copper (Cu), % 3.9 to 5.0
1.5 to 3.0
Iron (Fe), % 0 to 1.0
22 to 33.9
Magnesium (Mg), % 0 to 0.050
0
Manganese (Mn), % 0.4 to 1.2
0 to 1.0
Molybdenum (Mo), % 0
5.0 to 6.5
Nickel (Ni), % 0
39 to 46
Silicon (Si), % 0.5 to 1.2
0 to 0.050
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 0 to 0.15
0.6 to 1.0
Zinc (Zn), % 0 to 0.25
0
Residuals, % 0 to 0.15
0