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6023 Aluminum vs. AWS ERNiCu-7

6023 aluminum belongs to the aluminum alloys classification, while AWS ERNiCu-7 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 6023 aluminum and the bottom bar is AWS ERNiCu-7.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
160
Elongation at Break, % 11
34
Poisson's Ratio 0.33
0.32
Shear Modulus, GPa 26
61
Tensile Strength: Ultimate (UTS), MPa 360
550

Thermal Properties

Latent Heat of Fusion, J/g 400
280
Melting Completion (Liquidus), °C 640
1280
Melting Onset (Solidus), °C 580
1240
Specific Heat Capacity, J/kg-K 890
440
Thermal Conductivity, W/m-K 170
20
Thermal Expansion, µm/m-K 23
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 45
3.2
Electrical Conductivity: Equal Weight (Specific), % IACS 140
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 11
50
Density, g/cm3 2.8
8.7
Embodied Carbon, kg CO2/kg material 8.3
8.5
Embodied Energy, MJ/kg 150
120
Embodied Water, L/kg 1180
250

Common Calculations

Stiffness to Weight: Axial, points 14
10
Stiffness to Weight: Bending, points 49
21
Strength to Weight: Axial, points 35 to 36
18
Strength to Weight: Bending, points 40
17
Thermal Diffusivity, mm2/s 67
5.3
Thermal Shock Resistance, points 16
19

Alloy Composition

Aluminum (Al), % 94 to 97.7
0 to 1.3
Bismuth (Bi), % 0.3 to 0.8
0
Carbon (C), % 0
0 to 0.15
Copper (Cu), % 0.2 to 0.5
18.3 to 36.5
Iron (Fe), % 0 to 0.5
0 to 2.5
Magnesium (Mg), % 0.4 to 0.9
0
Manganese (Mn), % 0.2 to 0.6
0 to 4.0
Nickel (Ni), % 0
62 to 69
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0.6 to 1.4
0 to 1.3
Sulfur (S), % 0
0 to 0.015
Tin (Sn), % 0.6 to 1.2
0
Titanium (Ti), % 0
1.5 to 3.0
Residuals, % 0
0 to 0.5