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7108A Aluminum vs. EN 2.4650 Nickel

7108A aluminum belongs to the aluminum alloys classification, while EN 2.4650 nickel belongs to the nickel alloys. 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 7108A aluminum and the bottom bar is EN 2.4650 nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
210
Elongation at Break, % 11 to 13
34
Fatigue Strength, MPa 120 to 130
480
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 26
80
Shear Strength, MPa 210
730
Tensile Strength: Ultimate (UTS), MPa 350
1090
Tensile Strength: Yield (Proof), MPa 290 to 300
650

Thermal Properties

Latent Heat of Fusion, J/g 380
320
Maximum Temperature: Mechanical, °C 210
1010
Melting Completion (Liquidus), °C 630
1400
Melting Onset (Solidus), °C 520
1350
Specific Heat Capacity, J/kg-K 870
450
Thermal Conductivity, W/m-K 150
12
Thermal Expansion, µm/m-K 24
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 36
1.5
Electrical Conductivity: Equal Weight (Specific), % IACS 110
1.6

Otherwise Unclassified Properties

Base Metal Price, % relative 10
80
Density, g/cm3 2.9
8.5
Embodied Carbon, kg CO2/kg material 8.3
10
Embodied Energy, MJ/kg 150
140
Embodied Water, L/kg 1150
360

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 38 to 44
320
Resilience: Unit (Modulus of Resilience), kJ/m3 610 to 640
1030
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 47
23
Strength to Weight: Axial, points 33 to 34
36
Strength to Weight: Bending, points 38
28
Thermal Diffusivity, mm2/s 59
3.1
Thermal Shock Resistance, points 15 to 16
33

Alloy Composition

Aluminum (Al), % 91.6 to 94.4
0.3 to 0.6
Boron (B), % 0
0 to 0.0050
Carbon (C), % 0
0.040 to 0.080
Chromium (Cr), % 0 to 0.040
19 to 21
Cobalt (Co), % 0
19 to 21
Copper (Cu), % 0 to 0.050
0 to 0.2
Gallium (Ga), % 0 to 0.030
0
Iron (Fe), % 0 to 0.3
0 to 0.7
Magnesium (Mg), % 0.7 to 1.5
0
Manganese (Mn), % 0 to 0.050
0 to 0.6
Molybdenum (Mo), % 0
5.6 to 6.1
Nickel (Ni), % 0
46.9 to 54.2
Phosphorus (P), % 0
0 to 0.020
Silicon (Si), % 0 to 0.2
0 to 0.4
Sulfur (S), % 0
0 to 0.0070
Titanium (Ti), % 0 to 0.030
1.9 to 2.4
Zinc (Zn), % 4.8 to 5.8
0
Zirconium (Zr), % 0.15 to 0.25
0
Residuals, % 0 to 0.15
0