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7010 Aluminum vs. AWS ERNiCr-3

7010 aluminum belongs to the aluminum alloys classification, while AWS ERNiCr-3 belongs to the nickel alloys. There are 20 material properties with values for both materials. Properties with values for just one material (10, 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 ERNiCr-3.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
190
Elongation at Break, % 3.9 to 6.8
34
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 26
75
Tensile Strength: Ultimate (UTS), MPa 520 to 590
630

Thermal Properties

Latent Heat of Fusion, J/g 380
320
Melting Completion (Liquidus), °C 630
1380
Melting Onset (Solidus), °C 480
1330
Specific Heat Capacity, J/kg-K 860
460
Thermal Expansion, µm/m-K 24
13

Otherwise Unclassified Properties

Base Metal Price, % relative 10
70
Density, g/cm3 3.0
8.4
Embodied Carbon, kg CO2/kg material 8.3
11
Embodied Energy, MJ/kg 150
160
Embodied Water, L/kg 1120
280

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 45
23
Strength to Weight: Axial, points 47 to 54
21
Strength to Weight: Bending, points 47 to 52
19
Thermal Shock Resistance, points 22 to 26
18

Alloy Composition

Aluminum (Al), % 87.9 to 90.6
0
Carbon (C), % 0
0 to 0.1
Chromium (Cr), % 0 to 0.050
18 to 22
Cobalt (Co), % 0
0 to 0.12
Copper (Cu), % 1.5 to 2.0
0 to 0.5
Iron (Fe), % 0 to 0.15
0 to 3.0
Magnesium (Mg), % 2.1 to 2.6
0
Manganese (Mn), % 0 to 0.1
2.5 to 3.5
Nickel (Ni), % 0 to 0.050
67 to 77.5
Niobium (Nb), % 0
2.0 to 3.0
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0 to 0.12
0 to 0.5
Sulfur (S), % 0
0 to 0.015
Titanium (Ti), % 0 to 0.060
0 to 0.75
Zinc (Zn), % 5.7 to 6.7
0
Zirconium (Zr), % 0.1 to 0.16
0
Residuals, % 0
0 to 0.5