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2218 Aluminum vs. N06650 Nickel

2218 aluminum belongs to the aluminum alloys classification, while N06650 nickel belongs to the nickel alloys. There are 26 material properties with values for both materials. Properties with values for just one material (5, 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 2218 aluminum and the bottom bar is N06650 nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 73
210
Elongation at Break, % 6.8 to 10
50
Fatigue Strength, MPa 110
420
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 27
82
Shear Strength, MPa 210 to 250
640
Tensile Strength: Ultimate (UTS), MPa 330 to 430
900
Tensile Strength: Yield (Proof), MPa 260 to 310
460

Thermal Properties

Latent Heat of Fusion, J/g 390
320
Maximum Temperature: Mechanical, °C 220
980
Melting Completion (Liquidus), °C 640
1500
Melting Onset (Solidus), °C 510
1450
Specific Heat Capacity, J/kg-K 870
440
Thermal Expansion, µm/m-K 22
12

Otherwise Unclassified Properties

Base Metal Price, % relative 11
60
Density, g/cm3 3.1
8.6
Embodied Carbon, kg CO2/kg material 8.2
10
Embodied Energy, MJ/kg 150
140
Embodied Water, L/kg 1130
270

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 27 to 31
380
Resilience: Unit (Modulus of Resilience), kJ/m3 450 to 650
490
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 45
23
Strength to Weight: Axial, points 30 to 39
29
Strength to Weight: Bending, points 34 to 41
24
Thermal Shock Resistance, points 15 to 19
24

Alloy Composition

Aluminum (Al), % 88.8 to 93.6
0.050 to 0.5
Carbon (C), % 0
0 to 0.030
Chromium (Cr), % 0 to 0.1
19 to 21
Cobalt (Co), % 0
0 to 1.0
Copper (Cu), % 3.5 to 4.5
0 to 0.3
Iron (Fe), % 0 to 1.0
12 to 16
Magnesium (Mg), % 1.2 to 1.8
0
Manganese (Mn), % 0 to 0.2
0 to 0.5
Molybdenum (Mo), % 0
9.5 to 12.5
Nickel (Ni), % 1.7 to 2.3
44.4 to 58.9
Niobium (Nb), % 0
0.050 to 0.5
Nitrogen (N), % 0
0.050 to 0.2
Phosphorus (P), % 0
0 to 0.020
Silicon (Si), % 0 to 0.9
0 to 0.5
Sulfur (S), % 0
0 to 0.010
Tungsten (W), % 0
0.5 to 2.5
Zinc (Zn), % 0 to 0.25
0
Residuals, % 0 to 0.15
0