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Nickel 617 vs. 2018 Aluminum

Nickel 617 belongs to the nickel alloys classification, while 2018 aluminum belongs to the aluminum alloys. There are 30 material properties with values for both materials. Properties with values for just one material (1, 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 617 and the bottom bar is 2018 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
73
Elongation at Break, % 40
9.6
Fatigue Strength, MPa 220
120
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 80
27
Shear Strength, MPa 510
270
Tensile Strength: Ultimate (UTS), MPa 740
420
Tensile Strength: Yield (Proof), MPa 280
310

Thermal Properties

Latent Heat of Fusion, J/g 330
390
Maximum Temperature: Mechanical, °C 1010
220
Melting Completion (Liquidus), °C 1380
640
Melting Onset (Solidus), °C 1330
510
Specific Heat Capacity, J/kg-K 450
870
Thermal Conductivity, W/m-K 13
150
Thermal Expansion, µm/m-K 12
22

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.4
40
Electrical Conductivity: Equal Weight (Specific), % IACS 1.5
120

Otherwise Unclassified Properties

Base Metal Price, % relative 75
11
Density, g/cm3 8.5
3.1
Embodied Carbon, kg CO2/kg material 10
8.1
Embodied Energy, MJ/kg 140
150
Embodied Water, L/kg 350
1130

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 230
37
Resilience: Unit (Modulus of Resilience), kJ/m3 190
670
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 23
45
Strength to Weight: Axial, points 24
38
Strength to Weight: Bending, points 21
41
Thermal Diffusivity, mm2/s 3.5
57
Thermal Shock Resistance, points 21
19

Alloy Composition

Aluminum (Al), % 0.8 to 1.5
89.7 to 94.4
Boron (B), % 0 to 0.0060
0
Carbon (C), % 0.050 to 0.15
0
Chromium (Cr), % 20 to 24
0 to 0.1
Cobalt (Co), % 10 to 15
0
Copper (Cu), % 0 to 0.5
3.5 to 4.5
Iron (Fe), % 0 to 3.0
0 to 1.0
Magnesium (Mg), % 0
0.45 to 0.9
Manganese (Mn), % 0 to 1.0
0 to 0.2
Molybdenum (Mo), % 8.0 to 10
0
Nickel (Ni), % 44.5 to 62
1.7 to 2.3
Silicon (Si), % 0 to 1.0
0 to 0.9
Sulfur (S), % 0 to 0.015
0
Zinc (Zn), % 0
0 to 0.25
Residuals, % 0
0 to 0.15