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6025 Aluminum vs. N06985 Nickel

6025 aluminum belongs to the aluminum alloys classification, while N06985 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 6025 aluminum and the bottom bar is N06985 nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
210
Elongation at Break, % 2.8 to 10
45
Fatigue Strength, MPa 67 to 110
220
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 26
80
Shear Strength, MPa 110 to 140
480
Tensile Strength: Ultimate (UTS), MPa 190 to 240
690
Tensile Strength: Yield (Proof), MPa 68 to 210
260

Thermal Properties

Latent Heat of Fusion, J/g 410
320
Maximum Temperature: Mechanical, °C 160
990
Melting Completion (Liquidus), °C 650
1350
Melting Onset (Solidus), °C 550
1260
Specific Heat Capacity, J/kg-K 900
450
Thermal Conductivity, W/m-K 130
10
Thermal Expansion, µm/m-K 23
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 33
1.5
Electrical Conductivity: Equal Weight (Specific), % IACS 110
1.6

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
55
Density, g/cm3 2.8
8.4
Embodied Carbon, kg CO2/kg material 8.5
8.8
Embodied Energy, MJ/kg 150
120
Embodied Water, L/kg 1160
270

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 6.0 to 15
250
Resilience: Unit (Modulus of Resilience), kJ/m3 33 to 310
160
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 50
23
Strength to Weight: Axial, points 19 to 24
23
Strength to Weight: Bending, points 26 to 31
21
Thermal Diffusivity, mm2/s 54
2.6
Thermal Shock Resistance, points 8.2 to 10
16

Alloy Composition

Aluminum (Al), % 91.7 to 96.3
0
Carbon (C), % 0
0 to 0.015
Chromium (Cr), % 0 to 0.2
21 to 23.5
Cobalt (Co), % 0
0 to 5.0
Copper (Cu), % 0.2 to 0.7
1.5 to 2.5
Iron (Fe), % 0 to 0.7
18 to 21
Magnesium (Mg), % 2.1 to 3.0
0
Manganese (Mn), % 0.6 to 1.4
0 to 1.0
Molybdenum (Mo), % 0
6.0 to 8.0
Nickel (Ni), % 0
35.9 to 53.5
Niobium (Nb), % 0
0 to 0.5
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0.8 to 1.5
0 to 1.0
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 0 to 0.2
0
Tungsten (W), % 0
0 to 1.5
Zinc (Zn), % 0 to 0.5
0
Residuals, % 0 to 0.15
0