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7075 Aluminum vs. AWS E80C-B3L

7075 aluminum belongs to the aluminum alloys classification, while AWS E80C-B3L belongs to the iron alloys. There are 27 material properties with values for both materials. Properties with values for just one material (5, 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 7075 aluminum and the bottom bar is AWS E80C-B3L.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
190
Elongation at Break, % 1.8 to 12
19
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 26
73
Tensile Strength: Ultimate (UTS), MPa 240 to 590
620
Tensile Strength: Yield (Proof), MPa 120 to 510
540

Thermal Properties

Latent Heat of Fusion, J/g 380
260
Melting Completion (Liquidus), °C 640
1460
Melting Onset (Solidus), °C 480
1420
Specific Heat Capacity, J/kg-K 870
470
Thermal Conductivity, W/m-K 130
41
Thermal Expansion, µm/m-K 23
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 33
7.7
Electrical Conductivity: Equal Weight (Specific), % IACS 98
8.8

Otherwise Unclassified Properties

Base Metal Price, % relative 10
4.0
Density, g/cm3 3.0
7.8
Embodied Carbon, kg CO2/kg material 8.3
1.8
Embodied Energy, MJ/kg 150
24
Embodied Water, L/kg 1120
60

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 7.8 to 44
110
Resilience: Unit (Modulus of Resilience), kJ/m3 110 to 1870
760
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 46
24
Strength to Weight: Axial, points 22 to 54
22
Strength to Weight: Bending, points 28 to 52
21
Thermal Diffusivity, mm2/s 50
11
Thermal Shock Resistance, points 10 to 25
18

Alloy Composition

Aluminum (Al), % 86.9 to 91.4
0
Carbon (C), % 0
0 to 0.050
Chromium (Cr), % 0.18 to 0.28
2.0 to 2.5
Copper (Cu), % 1.2 to 2.0
0 to 0.35
Iron (Fe), % 0 to 0.5
93.5 to 96.5
Magnesium (Mg), % 2.1 to 2.9
0
Manganese (Mn), % 0 to 0.3
0.4 to 1.0
Molybdenum (Mo), % 0
0.9 to 1.2
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
Titanium (Ti), % 0 to 0.2
0
Vanadium (V), % 0
0 to 0.030
Zinc (Zn), % 5.1 to 6.1
0
Zirconium (Zr), % 0 to 0.25
0
Residuals, % 0
0 to 0.5