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7010 Aluminum vs. AWS ERNiCu-7

7010 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 7010 aluminum and the bottom bar is AWS ERNiCu-7.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
160
Elongation at Break, % 3.9 to 6.8
34
Poisson's Ratio 0.32
0.32
Shear Modulus, GPa 26
61
Tensile Strength: Ultimate (UTS), MPa 520 to 590
550

Thermal Properties

Latent Heat of Fusion, J/g 380
280
Melting Completion (Liquidus), °C 630
1280
Melting Onset (Solidus), °C 480
1240
Specific Heat Capacity, J/kg-K 860
440
Thermal Conductivity, W/m-K 150
20
Thermal Expansion, µm/m-K 24
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 40
3.2
Electrical Conductivity: Equal Weight (Specific), % IACS 120
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 10
50
Density, g/cm3 3.0
8.7
Embodied Carbon, kg CO2/kg material 8.3
8.5
Embodied Energy, MJ/kg 150
120
Embodied Water, L/kg 1120
250

Common Calculations

Stiffness to Weight: Axial, points 13
10
Stiffness to Weight: Bending, points 45
21
Strength to Weight: Axial, points 47 to 54
18
Strength to Weight: Bending, points 47 to 52
17
Thermal Diffusivity, mm2/s 58
5.3
Thermal Shock Resistance, points 22 to 26
19

Alloy Composition

Aluminum (Al), % 87.9 to 90.6
0 to 1.3
Carbon (C), % 0
0 to 0.15
Chromium (Cr), % 0 to 0.050
0
Copper (Cu), % 1.5 to 2.0
18.3 to 36.5
Iron (Fe), % 0 to 0.15
0 to 2.5
Magnesium (Mg), % 2.1 to 2.6
0
Manganese (Mn), % 0 to 0.1
0 to 4.0
Nickel (Ni), % 0 to 0.050
62 to 69
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0 to 0.12
0 to 1.3
Sulfur (S), % 0
0 to 0.015
Titanium (Ti), % 0 to 0.060
1.5 to 3.0
Zinc (Zn), % 5.7 to 6.7
0
Zirconium (Zr), % 0.1 to 0.16
0
Residuals, % 0
0 to 0.5