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EN 2.4654 Nickel vs. 7178 Aluminum

EN 2.4654 nickel belongs to the nickel alloys classification, while 7178 aluminum belongs to the aluminum alloys. There are 28 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 EN 2.4654 nickel and the bottom bar is 7178 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
71
Elongation at Break, % 17
4.5 to 12
Fatigue Strength, MPa 460
120 to 210
Poisson's Ratio 0.29
0.32
Shear Modulus, GPa 77
27
Shear Strength, MPa 770
140 to 380
Tensile Strength: Ultimate (UTS), MPa 1250
240 to 640
Tensile Strength: Yield (Proof), MPa 850
120 to 560

Thermal Properties

Latent Heat of Fusion, J/g 320
370
Maximum Temperature: Mechanical, °C 1000
180
Melting Completion (Liquidus), °C 1390
630
Melting Onset (Solidus), °C 1330
480
Specific Heat Capacity, J/kg-K 460
860
Thermal Conductivity, W/m-K 13
130
Thermal Expansion, µm/m-K 12
23

Otherwise Unclassified Properties

Base Metal Price, % relative 75
10
Density, g/cm3 8.4
3.1
Embodied Carbon, kg CO2/kg material 10
8.2
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 340
1110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
24 to 52
Resilience: Unit (Modulus of Resilience), kJ/m3 1810
110 to 2220
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 23
45
Strength to Weight: Axial, points 42
21 to 58
Strength to Weight: Bending, points 31
28 to 54
Thermal Diffusivity, mm2/s 3.3
47
Thermal Shock Resistance, points 37
10 to 28

Alloy Composition

Aluminum (Al), % 1.2 to 1.6
85.4 to 89.5
Boron (B), % 0.0030 to 0.010
0
Carbon (C), % 0.020 to 0.1
0
Chromium (Cr), % 18 to 21
0.18 to 0.28
Cobalt (Co), % 12 to 15
0
Copper (Cu), % 0 to 0.1
1.6 to 2.4
Iron (Fe), % 0 to 2.0
0 to 0.5
Magnesium (Mg), % 0
2.4 to 3.1
Manganese (Mn), % 0 to 1.0
0 to 0.3
Molybdenum (Mo), % 3.5 to 5.0
0
Nickel (Ni), % 50.6 to 62.5
0
Phosphorus (P), % 0 to 0.015
0
Silicon (Si), % 0 to 0.15
0 to 0.4
Sulfur (S), % 0 to 0.015
0
Titanium (Ti), % 2.8 to 3.3
0 to 0.2
Zinc (Zn), % 0
6.3 to 7.3
Zirconium (Zr), % 0.020 to 0.080
0
Residuals, % 0
0 to 0.15