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AWS E409Nb vs. 2124 Aluminum

AWS E409Nb belongs to the iron alloys classification, while 2124 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 2124 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
71
Elongation at Break, % 23
5.7
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 76
27
Tensile Strength: Ultimate (UTS), MPa 500
490
Tensile Strength: Yield (Proof), MPa 380
430

Thermal Properties

Latent Heat of Fusion, J/g 280
390
Melting Completion (Liquidus), °C 1460
640
Melting Onset (Solidus), °C 1410
500
Specific Heat Capacity, J/kg-K 480
880
Thermal Conductivity, W/m-K 25
150
Thermal Expansion, µm/m-K 14
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
38
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
110

Otherwise Unclassified Properties

Base Metal Price, % relative 13
10
Density, g/cm3 7.8
3.0
Embodied Carbon, kg CO2/kg material 2.9
8.2
Embodied Energy, MJ/kg 42
150
Embodied Water, L/kg 100
1150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
27
Resilience: Unit (Modulus of Resilience), kJ/m3 380
1290
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
46
Strength to Weight: Axial, points 18
45
Strength to Weight: Bending, points 18
46
Thermal Diffusivity, mm2/s 6.8
58
Thermal Shock Resistance, points 14
21

Alloy Composition

Aluminum (Al), % 0
91.3 to 94.7
Carbon (C), % 0 to 0.12
0
Chromium (Cr), % 11 to 14
0 to 0.1
Copper (Cu), % 0 to 0.75
3.8 to 4.9
Iron (Fe), % 80.2 to 88.5
0 to 0.3
Magnesium (Mg), % 0
1.2 to 1.8
Manganese (Mn), % 0 to 1.0
0.3 to 0.9
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 0.2
Sulfur (S), % 0 to 0.030
0
Titanium (Ti), % 0
0 to 0.15
Zinc (Zn), % 0
0 to 0.25
Residuals, % 0
0 to 0.15