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5021 Aluminum vs. AWS E70C-B2L

5021 aluminum belongs to the aluminum alloys classification, while AWS E70C-B2L belongs to the iron 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 5021 aluminum and the bottom bar is AWS E70C-B2L.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 68
190
Elongation at Break, % 1.1 to 3.4
21
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 26
73
Tensile Strength: Ultimate (UTS), MPa 300 to 310
580
Tensile Strength: Yield (Proof), MPa 240 to 270
460

Thermal Properties

Latent Heat of Fusion, J/g 400
260
Melting Completion (Liquidus), °C 640
1460
Melting Onset (Solidus), °C 590
1420
Specific Heat Capacity, J/kg-K 900
470
Thermal Conductivity, W/m-K 140
39
Thermal Expansion, µm/m-K 23
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 35
7.5
Electrical Conductivity: Equal Weight (Specific), % IACS 120
8.6

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
3.0
Density, g/cm3 2.7
7.8
Embodied Carbon, kg CO2/kg material 8.6
1.6
Embodied Energy, MJ/kg 150
22
Embodied Water, L/kg 1180
54

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 3.1 to 10
110
Resilience: Unit (Modulus of Resilience), kJ/m3 440 to 550
550
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 50
24
Strength to Weight: Axial, points 30 to 32
20
Strength to Weight: Bending, points 37
20
Thermal Diffusivity, mm2/s 57
11
Thermal Shock Resistance, points 13 to 14
17

Alloy Composition


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Aluminum (Al), % 95.2 to 97.7
0
Carbon (C), % 0
0 to 0.050
Chromium (Cr), % 0 to 0.15
1.0 to 1.5
Copper (Cu), % 0 to 0.15
0 to 0.35
Iron (Fe), % 0 to 0.5
95.1 to 98
Magnesium (Mg), % 2.2 to 2.8
0
Manganese (Mn), % 0.1 to 0.5
0.4 to 1.0
Molybdenum (Mo), % 0
0.4 to 0.65
Nickel (Ni), % 0
0 to 0.2
Phosphorus (P), % 0
0 to 0.025
Silicon (Si), % 0 to 0.4
0.25 to 0.6
Sulfur (S), % 0
0 to 0.030
Vanadium (V), % 0
0 to 0.030
Zinc (Zn), % 0 to 0.15
0
Residuals, % 0 to 0.15
0 to 0.5