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6081 Aluminum vs. Grade CW6M Nickel

6081 aluminum belongs to the aluminum alloys classification, while grade CW6M nickel belongs to the nickel alloys. There are 25 material properties with values for both materials. Properties with values for just one material (5, 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 grade CW6M nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
220
Elongation at Break, % 9.0
29
Fatigue Strength, MPa 110
210
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 26
84
Tensile Strength: Ultimate (UTS), MPa 310
560
Tensile Strength: Yield (Proof), MPa 270
310

Thermal Properties

Latent Heat of Fusion, J/g 410
330
Maximum Temperature: Mechanical, °C 160
970
Melting Completion (Liquidus), °C 640
1530
Melting Onset (Solidus), °C 610
1470
Specific Heat Capacity, J/kg-K 900
430
Thermal Expansion, µm/m-K 23
12

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
65
Density, g/cm3 2.7
8.8
Embodied Carbon, kg CO2/kg material 8.3
13
Embodied Energy, MJ/kg 150
170
Embodied Water, L/kg 1180
300

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 27
140
Resilience: Unit (Modulus of Resilience), kJ/m3 540
220
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 50
23
Strength to Weight: Axial, points 32
18
Strength to Weight: Bending, points 37
17
Thermal Shock Resistance, points 14
16

Alloy Composition

Aluminum (Al), % 96.3 to 98.6
0
Carbon (C), % 0
0 to 0.070
Chromium (Cr), % 0 to 0.1
17 to 20
Copper (Cu), % 0 to 0.1
0
Iron (Fe), % 0 to 0.5
0 to 3.0
Magnesium (Mg), % 0.6 to 1.0
0
Manganese (Mn), % 0.1 to 0.45
0 to 1.0
Molybdenum (Mo), % 0
17 to 20
Nickel (Ni), % 0
54.9 to 66
Phosphorus (P), % 0
0 to 0.040
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
Zinc (Zn), % 0 to 0.2
0
Residuals, % 0 to 0.15
0