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390.0 Aluminum vs. AWS E120C-K4

390.0 aluminum belongs to the aluminum alloys classification, while AWS E120C-K4 belongs to the iron 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 390.0 aluminum and the bottom bar is AWS E120C-K4.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 75
190
Elongation at Break, % 1.0
17
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 28
73
Tensile Strength: Ultimate (UTS), MPa 280 to 300
950
Tensile Strength: Yield (Proof), MPa 240 to 270
840

Thermal Properties

Latent Heat of Fusion, J/g 640
250
Melting Completion (Liquidus), °C 650
1460
Melting Onset (Solidus), °C 560
1410
Specific Heat Capacity, J/kg-K 880
470
Thermal Conductivity, W/m-K 130
41
Thermal Expansion, µm/m-K 18
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 24 to 25
8.0
Electrical Conductivity: Equal Weight (Specific), % IACS 79 to 83
9.2

Otherwise Unclassified Properties

Base Metal Price, % relative 11
3.5
Density, g/cm3 2.7
7.8
Embodied Carbon, kg CO2/kg material 7.3
1.7
Embodied Energy, MJ/kg 130
23
Embodied Water, L/kg 950
54

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.7 to 2.9
160
Resilience: Unit (Modulus of Resilience), kJ/m3 380 to 470
1880
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 52
24
Strength to Weight: Axial, points 28 to 30
34
Strength to Weight: Bending, points 35 to 36
27
Thermal Diffusivity, mm2/s 56
11
Thermal Shock Resistance, points 14 to 15
28

Alloy Composition

Aluminum (Al), % 74.5 to 79.6
0
Carbon (C), % 0
0 to 0.15
Chromium (Cr), % 0
0.15 to 0.65
Copper (Cu), % 4.0 to 5.0
0 to 0.35
Iron (Fe), % 0 to 1.3
92.1 to 98.4
Magnesium (Mg), % 0.45 to 0.65
0
Manganese (Mn), % 0 to 0.1
0.75 to 2.3
Molybdenum (Mo), % 0
0.25 to 0.65
Nickel (Ni), % 0
0.5 to 2.5
Phosphorus (P), % 0
0 to 0.025
Silicon (Si), % 16 to 18
0 to 0.8
Sulfur (S), % 0
0 to 0.025
Titanium (Ti), % 0 to 0.2
0
Vanadium (V), % 0
0 to 0.030
Zinc (Zn), % 0 to 0.1
0
Residuals, % 0
0 to 0.5