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7020 Aluminum vs. AWS ER110S-1

7020 aluminum belongs to the aluminum alloys classification, while AWS ER110S-1 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 7020 aluminum and the bottom bar is AWS ER110S-1.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
190
Elongation at Break, % 8.4 to 14
17
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 26
73
Tensile Strength: Ultimate (UTS), MPa 190 to 390
870
Tensile Strength: Yield (Proof), MPa 120 to 310
740

Thermal Properties

Latent Heat of Fusion, J/g 380
250
Melting Completion (Liquidus), °C 650
1460
Melting Onset (Solidus), °C 610
1410
Specific Heat Capacity, J/kg-K 880
470
Thermal Conductivity, W/m-K 150
47
Thermal Expansion, µm/m-K 23
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 39
7.7
Electrical Conductivity: Equal Weight (Specific), % IACS 120
8.8

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
4.0
Density, g/cm3 2.9
7.8
Embodied Carbon, kg CO2/kg material 8.3
1.8
Embodied Energy, MJ/kg 150
25
Embodied Water, L/kg 1150
55

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 23 to 46
140
Resilience: Unit (Modulus of Resilience), kJ/m3 110 to 690
1460
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 47
24
Strength to Weight: Axial, points 18 to 37
31
Strength to Weight: Bending, points 25 to 41
26
Thermal Diffusivity, mm2/s 59
13
Thermal Shock Resistance, points 8.3 to 17
26

Alloy Composition

Aluminum (Al), % 91.2 to 94.8
0 to 0.1
Carbon (C), % 0
0 to 0.090
Chromium (Cr), % 0.1 to 0.35
0 to 0.5
Copper (Cu), % 0 to 0.2
0 to 0.25
Iron (Fe), % 0 to 0.4
92.8 to 96.3
Magnesium (Mg), % 1.0 to 1.4
0
Manganese (Mn), % 0.050 to 0.5
1.4 to 1.8
Molybdenum (Mo), % 0
0.25 to 0.55
Nickel (Ni), % 0
1.9 to 2.6
Phosphorus (P), % 0
0 to 0.010
Silicon (Si), % 0 to 0.35
0.2 to 0.55
Sulfur (S), % 0
0 to 0.010
Titanium (Ti), % 0 to 0.25
0 to 0.1
Vanadium (V), % 0
0 to 0.040
Zinc (Zn), % 4.0 to 5.0
0
Zirconium (Zr), % 0.080 to 0.25
0 to 0.1
Residuals, % 0
0 to 0.5