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8079 Aluminum vs. Nickel 625

8079 aluminum belongs to the aluminum alloys classification, while nickel 625 belongs to the nickel alloys. There are 29 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 8079 aluminum and the bottom bar is nickel 625.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
200
Elongation at Break, % 2.2
33 to 34
Fatigue Strength, MPa 56
240 to 320
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 26
79
Tensile Strength: Ultimate (UTS), MPa 150
790 to 910
Tensile Strength: Yield (Proof), MPa 120
320 to 450

Thermal Properties

Latent Heat of Fusion, J/g 400
330
Maximum Temperature: Mechanical, °C 170
980
Melting Completion (Liquidus), °C 650
1350
Melting Onset (Solidus), °C 640
1290
Specific Heat Capacity, J/kg-K 900
440
Thermal Conductivity, W/m-K 230
11
Thermal Expansion, µm/m-K 23
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 58
1.3
Electrical Conductivity: Equal Weight (Specific), % IACS 190
1.4

Otherwise Unclassified Properties

Base Metal Price, % relative 9.0
80
Density, g/cm3 2.8
8.6
Embodied Carbon, kg CO2/kg material 8.2
14
Embodied Energy, MJ/kg 150
190
Embodied Water, L/kg 1180
290

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 3.1
220 to 250
Resilience: Unit (Modulus of Resilience), kJ/m3 110
260 to 490
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 50
23
Strength to Weight: Axial, points 15
26 to 29
Strength to Weight: Bending, points 22
22 to 24
Thermal Diffusivity, mm2/s 92
2.9
Thermal Shock Resistance, points 6.4
22 to 25

Alloy Composition

Aluminum (Al), % 98.1 to 99.3
0 to 0.4
Carbon (C), % 0
0 to 0.1
Chromium (Cr), % 0
20 to 23
Cobalt (Co), % 0
0 to 1.0
Copper (Cu), % 0 to 0.050
0
Iron (Fe), % 0.7 to 1.3
0 to 5.0
Manganese (Mn), % 0
0 to 0.5
Molybdenum (Mo), % 0
8.0 to 10
Nickel (Ni), % 0
58 to 68.9
Niobium (Nb), % 0
3.2 to 4.2
Phosphorus (P), % 0
0 to 0.015
Silicon (Si), % 0.050 to 0.3
0 to 0.5
Sulfur (S), % 0
0 to 0.015
Titanium (Ti), % 0
0 to 0.4
Zinc (Zn), % 0 to 0.1
0
Residuals, % 0 to 0.15
0