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7178 Aluminum vs. N06455 Nickel

7178 aluminum belongs to the aluminum alloys classification, while N06455 nickel belongs to the nickel alloys. There are 30 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 7178 aluminum and the bottom bar is N06455 nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 71
210
Elongation at Break, % 4.5 to 12
47
Fatigue Strength, MPa 120 to 210
290
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 27
82
Shear Strength, MPa 140 to 380
550
Tensile Strength: Ultimate (UTS), MPa 240 to 640
780
Tensile Strength: Yield (Proof), MPa 120 to 560
330

Thermal Properties

Latent Heat of Fusion, J/g 370
320
Maximum Temperature: Mechanical, °C 180
960
Melting Completion (Liquidus), °C 630
1510
Melting Onset (Solidus), °C 480
1450
Specific Heat Capacity, J/kg-K 860
430
Thermal Conductivity, W/m-K 130
10
Thermal Expansion, µm/m-K 23
11

Electrical Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 10
65
Density, g/cm3 3.1
8.8
Embodied Carbon, kg CO2/kg material 8.2
12
Embodied Energy, MJ/kg 150
160
Embodied Water, L/kg 1110
290

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 24 to 52
300
Resilience: Unit (Modulus of Resilience), kJ/m3 110 to 2220
260
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 45
23
Strength to Weight: Axial, points 21 to 58
24
Strength to Weight: Bending, points 28 to 54
21
Thermal Diffusivity, mm2/s 47
2.7
Thermal Shock Resistance, points 10 to 28
24

Alloy Composition

Aluminum (Al), % 85.4 to 89.5
0
Carbon (C), % 0
0 to 0.015
Chromium (Cr), % 0.18 to 0.28
14 to 18
Cobalt (Co), % 0
0 to 2.0
Copper (Cu), % 1.6 to 2.4
0
Iron (Fe), % 0 to 0.5
0 to 3.0
Magnesium (Mg), % 2.4 to 3.1
0
Manganese (Mn), % 0 to 0.3
0 to 1.0
Molybdenum (Mo), % 0
14 to 17
Nickel (Ni), % 0
58.1 to 72
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0 to 0.4
0 to 0.080
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 0 to 0.2
0 to 0.7
Zinc (Zn), % 6.3 to 7.3
0
Residuals, % 0 to 0.15
0