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7003 Aluminum vs. AWS ERNiCrFe-6

7003 aluminum belongs to the aluminum alloys classification, while AWS ERNiCrFe-6 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 7003 aluminum and the bottom bar is AWS ERNiCrFe-6.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
190
Elongation at Break, % 11
34
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 26
74
Tensile Strength: Ultimate (UTS), MPa 350 to 390
630

Thermal Properties

Latent Heat of Fusion, J/g 380
310
Melting Completion (Liquidus), °C 630
1370
Melting Onset (Solidus), °C 510
1320
Specific Heat Capacity, J/kg-K 870
460
Thermal Conductivity, W/m-K 150
13
Thermal Expansion, µm/m-K 24
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 36
1.4
Electrical Conductivity: Equal Weight (Specific), % IACS 110
1.5

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
55
Density, g/cm3 2.9
8.4
Embodied Carbon, kg CO2/kg material 8.1
9.8
Embodied Energy, MJ/kg 150
140
Embodied Water, L/kg 1140
260

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 47
23
Strength to Weight: Axial, points 33 to 37
21
Strength to Weight: Bending, points 37 to 40
19
Thermal Diffusivity, mm2/s 59
3.3
Thermal Shock Resistance, points 15 to 17
19

Alloy Composition

Aluminum (Al), % 90.6 to 94.5
0
Carbon (C), % 0
0 to 0.080
Chromium (Cr), % 0 to 0.2
14 to 17
Copper (Cu), % 0 to 0.2
0 to 0.5
Iron (Fe), % 0 to 0.35
0 to 8.0
Magnesium (Mg), % 0.5 to 1.0
0
Manganese (Mn), % 0 to 0.3
2.0 to 2.7
Nickel (Ni), % 0
67 to 81.5
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0 to 0.3
0 to 0.35
Sulfur (S), % 0
0 to 0.015
Titanium (Ti), % 0 to 0.2
2.5 to 3.5
Zinc (Zn), % 5.0 to 6.5
0
Zirconium (Zr), % 0.050 to 0.25
0
Residuals, % 0
0 to 0.5