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AWS E409Nb vs. 7003 Aluminum

AWS E409Nb belongs to the iron alloys classification, while 7003 aluminum belongs to the aluminum alloys. There are 27 material properties with values for both materials. Properties with values for just one material (4, 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 AWS E409Nb and the bottom bar is 7003 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
70
Elongation at Break, % 23
11
Poisson's Ratio 0.28
0.32
Shear Modulus, GPa 76
26
Tensile Strength: Ultimate (UTS), MPa 500
350 to 390
Tensile Strength: Yield (Proof), MPa 380
300 to 310

Thermal Properties

Latent Heat of Fusion, J/g 280
380
Melting Completion (Liquidus), °C 1460
630
Melting Onset (Solidus), °C 1410
510
Specific Heat Capacity, J/kg-K 480
870
Thermal Conductivity, W/m-K 25
150
Thermal Expansion, µm/m-K 14
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
36
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
110

Otherwise Unclassified Properties

Base Metal Price, % relative 13
9.5
Density, g/cm3 7.8
2.9
Embodied Carbon, kg CO2/kg material 2.9
8.1
Embodied Energy, MJ/kg 42
150
Embodied Water, L/kg 100
1140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
37 to 41
Resilience: Unit (Modulus of Resilience), kJ/m3 380
630 to 710
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
47
Strength to Weight: Axial, points 18
33 to 37
Strength to Weight: Bending, points 18
37 to 40
Thermal Diffusivity, mm2/s 6.8
59
Thermal Shock Resistance, points 14
15 to 17

Alloy Composition

Aluminum (Al), % 0
90.6 to 94.5
Carbon (C), % 0 to 0.12
0
Chromium (Cr), % 11 to 14
0 to 0.2
Copper (Cu), % 0 to 0.75
0 to 0.2
Iron (Fe), % 80.2 to 88.5
0 to 0.35
Magnesium (Mg), % 0
0.5 to 1.0
Manganese (Mn), % 0 to 1.0
0 to 0.3
Molybdenum (Mo), % 0 to 0.75
0
Nickel (Ni), % 0 to 0.6
0
Niobium (Nb), % 0.5 to 1.5
0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.0
0 to 0.3
Sulfur (S), % 0 to 0.030
0
Titanium (Ti), % 0
0 to 0.2
Zinc (Zn), % 0
5.0 to 6.5
Zirconium (Zr), % 0
0.050 to 0.25
Residuals, % 0
0 to 0.15