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6081 Aluminum vs. N06975 Nickel

6081 aluminum belongs to the aluminum alloys classification, while N06975 nickel belongs to the nickel alloys. There are 26 material properties with values for both materials. Properties with values for just one material (4, 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 6081 aluminum and the bottom bar is N06975 nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
200
Elongation at Break, % 9.0
45
Fatigue Strength, MPa 110
210
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 26
80
Shear Strength, MPa 180
470
Tensile Strength: Ultimate (UTS), MPa 310
660
Tensile Strength: Yield (Proof), MPa 270
250

Thermal Properties

Latent Heat of Fusion, J/g 410
320
Maximum Temperature: Mechanical, °C 160
1000
Melting Completion (Liquidus), °C 640
1430
Melting Onset (Solidus), °C 610
1380
Specific Heat Capacity, J/kg-K 900
460
Thermal Expansion, µm/m-K 23
13

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
50
Density, g/cm3 2.7
8.3
Embodied Carbon, kg CO2/kg material 8.3
8.9
Embodied Energy, MJ/kg 150
120
Embodied Water, L/kg 1180
270

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 27
240
Resilience: Unit (Modulus of Resilience), kJ/m3 540
150
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 50
24
Strength to Weight: Axial, points 32
22
Strength to Weight: Bending, points 37
20
Thermal Shock Resistance, points 14
18

Alloy Composition

Aluminum (Al), % 96.3 to 98.6
0
Carbon (C), % 0
0 to 0.030
Chromium (Cr), % 0 to 0.1
23 to 26
Copper (Cu), % 0 to 0.1
0.7 to 1.2
Iron (Fe), % 0 to 0.5
10.2 to 23.6
Magnesium (Mg), % 0.6 to 1.0
0
Manganese (Mn), % 0.1 to 0.45
0 to 1.0
Molybdenum (Mo), % 0
5.0 to 7.0
Nickel (Ni), % 0
47 to 52
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0.7 to 1.1
0 to 1.0
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 0 to 0.15
0.7 to 1.5
Zinc (Zn), % 0 to 0.2
0
Residuals, % 0 to 0.15
0