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AWS E120C-K4 vs. 2124 Aluminum

AWS E120C-K4 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 (3, 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 E120C-K4 and the bottom bar is 2124 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
71
Elongation at Break, % 17
5.7
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 73
27
Tensile Strength: Ultimate (UTS), MPa 950
490
Tensile Strength: Yield (Proof), MPa 840
430

Thermal Properties

Latent Heat of Fusion, J/g 250
390
Melting Completion (Liquidus), °C 1460
640
Melting Onset (Solidus), °C 1410
500
Specific Heat Capacity, J/kg-K 470
880
Thermal Conductivity, W/m-K 41
150
Thermal Expansion, µm/m-K 13
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.0
38
Electrical Conductivity: Equal Weight (Specific), % IACS 9.2
110

Otherwise Unclassified Properties

Base Metal Price, % relative 3.5
10
Density, g/cm3 7.8
3.0
Embodied Carbon, kg CO2/kg material 1.7
8.2
Embodied Energy, MJ/kg 23
150
Embodied Water, L/kg 54
1150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 160
27
Resilience: Unit (Modulus of Resilience), kJ/m3 1880
1290
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
46
Strength to Weight: Axial, points 34
45
Strength to Weight: Bending, points 27
46
Thermal Diffusivity, mm2/s 11
58
Thermal Shock Resistance, points 28
21

Alloy Composition

Aluminum (Al), % 0
91.3 to 94.7
Carbon (C), % 0 to 0.15
0
Chromium (Cr), % 0.15 to 0.65
0 to 0.1
Copper (Cu), % 0 to 0.35
3.8 to 4.9
Iron (Fe), % 92.1 to 98.4
0 to 0.3
Magnesium (Mg), % 0
1.2 to 1.8
Manganese (Mn), % 0.75 to 2.3
0.3 to 0.9
Molybdenum (Mo), % 0.25 to 0.65
0
Nickel (Ni), % 0.5 to 2.5
0
Phosphorus (P), % 0 to 0.025
0
Silicon (Si), % 0 to 0.8
0 to 0.2
Sulfur (S), % 0 to 0.025
0
Titanium (Ti), % 0
0 to 0.15
Vanadium (V), % 0 to 0.030
0
Zinc (Zn), % 0
0 to 0.25
Residuals, % 0
0 to 0.15