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EN 2.4851 Nickel vs. 7178 Aluminum

EN 2.4851 nickel belongs to the nickel alloys classification, while 7178 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 EN 2.4851 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, % 34
4.5 to 12
Fatigue Strength, MPa 170
120 to 210
Poisson's Ratio 0.28
0.32
Shear Modulus, GPa 76
27
Shear Strength, MPa 430
140 to 380
Tensile Strength: Ultimate (UTS), MPa 650
240 to 640
Tensile Strength: Yield (Proof), MPa 230
120 to 560

Thermal Properties

Latent Heat of Fusion, J/g 320
370
Maximum Temperature: Mechanical, °C 1200
180
Melting Completion (Liquidus), °C 1360
630
Melting Onset (Solidus), °C 1310
480
Specific Heat Capacity, J/kg-K 470
860
Thermal Conductivity, W/m-K 11
130
Thermal Expansion, µm/m-K 14
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.4
31
Electrical Conductivity: Equal Weight (Specific), % IACS 1.6
91

Otherwise Unclassified Properties

Base Metal Price, % relative 49
10
Density, g/cm3 8.2
3.1
Embodied Carbon, kg CO2/kg material 8.1
8.2
Embodied Energy, MJ/kg 120
150
Embodied Water, L/kg 280
1110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 170
24 to 52
Resilience: Unit (Modulus of Resilience), kJ/m3 130
110 to 2220
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 23
45
Strength to Weight: Axial, points 22
21 to 58
Strength to Weight: Bending, points 20
28 to 54
Thermal Diffusivity, mm2/s 2.9
47
Thermal Shock Resistance, points 17
10 to 28

Alloy Composition

Aluminum (Al), % 1.0 to 1.7
85.4 to 89.5
Boron (B), % 0 to 0.0060
0
Carbon (C), % 0.030 to 0.1
0
Chromium (Cr), % 21 to 25
0.18 to 0.28
Copper (Cu), % 0 to 0.5
1.6 to 2.4
Iron (Fe), % 7.7 to 18
0 to 0.5
Magnesium (Mg), % 0
2.4 to 3.1
Manganese (Mn), % 0 to 1.0
0 to 0.3
Nickel (Ni), % 58 to 63
0
Phosphorus (P), % 0 to 0.020
0
Silicon (Si), % 0 to 0.5
0 to 0.4
Sulfur (S), % 0 to 0.015
0
Titanium (Ti), % 0 to 0.5
0 to 0.2
Zinc (Zn), % 0
6.3 to 7.3
Residuals, % 0
0 to 0.15