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6081 Aluminum vs. AWS ENiCrMo-3

6081 aluminum belongs to the aluminum alloys classification, while AWS ENiCrMo-3 belongs to the nickel alloys. There are 24 material properties with values for both materials. Properties with values for just one material (6, 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 AWS ENiCrMo-3.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
200
Elongation at Break, % 9.0
34
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 26
79
Tensile Strength: Ultimate (UTS), MPa 310
870

Thermal Properties

Latent Heat of Fusion, J/g 410
330
Melting Completion (Liquidus), °C 640
1480
Melting Onset (Solidus), °C 610
1430
Specific Heat Capacity, J/kg-K 900
440
Thermal Conductivity, W/m-K 180
11
Thermal Expansion, µm/m-K 23
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 47
1.3
Electrical Conductivity: Equal Weight (Specific), % IACS 160
1.4

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
80
Density, g/cm3 2.7
8.6
Embodied Carbon, kg CO2/kg material 8.3
14
Embodied Energy, MJ/kg 150
190
Embodied Water, L/kg 1180
290

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 50
23
Strength to Weight: Axial, points 32
28
Strength to Weight: Bending, points 37
24
Thermal Diffusivity, mm2/s 74
2.8
Thermal Shock Resistance, points 14
25

Alloy Composition

Aluminum (Al), % 96.3 to 98.6
0
Carbon (C), % 0
0 to 0.1
Chromium (Cr), % 0 to 0.1
20 to 23
Cobalt (Co), % 0
0 to 0.12
Copper (Cu), % 0 to 0.1
0 to 0.5
Iron (Fe), % 0 to 0.5
0 to 7.0
Magnesium (Mg), % 0.6 to 1.0
0
Manganese (Mn), % 0.1 to 0.45
0 to 1.0
Molybdenum (Mo), % 0
8.0 to 10
Nickel (Ni), % 0
55 to 68.9
Niobium (Nb), % 0
3.2 to 4.2
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0.7 to 1.1
0 to 0.75
Sulfur (S), % 0
0 to 0.020
Titanium (Ti), % 0 to 0.15
0
Zinc (Zn), % 0 to 0.2
0
Residuals, % 0
0 to 0.5