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2218 Aluminum vs. Nickel 333

2218 aluminum belongs to the aluminum alloys classification, while nickel 333 belongs to the nickel alloys. There are 30 material properties with values for both materials. Properties with values for just one material (2, 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 nickel 333.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 73
210
Elongation at Break, % 6.8 to 10
34
Fatigue Strength, MPa 110
200
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 27
81
Shear Strength, MPa 210 to 250
420
Tensile Strength: Ultimate (UTS), MPa 330 to 430
630
Tensile Strength: Yield (Proof), MPa 260 to 310
270

Thermal Properties

Latent Heat of Fusion, J/g 390
320
Maximum Temperature: Mechanical, °C 220
1010
Melting Completion (Liquidus), °C 640
1460
Melting Onset (Solidus), °C 510
1410
Specific Heat Capacity, J/kg-K 870
450
Thermal Conductivity, W/m-K 140
11
Thermal Expansion, µm/m-K 22
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 37
1.5
Electrical Conductivity: Equal Weight (Specific), % IACS 110
1.6

Otherwise Unclassified Properties

Base Metal Price, % relative 11
55
Density, g/cm3 3.1
8.5
Embodied Carbon, kg CO2/kg material 8.2
8.5
Embodied Energy, MJ/kg 150
120
Embodied Water, L/kg 1130
270

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 27 to 31
170
Resilience: Unit (Modulus of Resilience), kJ/m3 450 to 650
180
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 45
23
Strength to Weight: Axial, points 30 to 39
21
Strength to Weight: Bending, points 34 to 41
19
Thermal Diffusivity, mm2/s 52
2.9
Thermal Shock Resistance, points 15 to 19
16

Alloy Composition

Aluminum (Al), % 88.8 to 93.6
0
Carbon (C), % 0
0 to 0.1
Chromium (Cr), % 0 to 0.1
24 to 27
Cobalt (Co), % 0
2.5 to 4.0
Copper (Cu), % 3.5 to 4.5
0
Iron (Fe), % 0 to 1.0
9.3 to 24.5
Magnesium (Mg), % 1.2 to 1.8
0
Manganese (Mn), % 0 to 0.2
0 to 2.0
Molybdenum (Mo), % 0
2.5 to 4.0
Nickel (Ni), % 1.7 to 2.3
44 to 48
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0 to 0.9
0 to 1.5
Sulfur (S), % 0
0 to 0.030
Tungsten (W), % 0
2.5 to 4.0
Zinc (Zn), % 0 to 0.25
0
Residuals, % 0 to 0.15
0