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2017A Aluminum vs. 7020 Aluminum

Both 2017A aluminum and 7020 aluminum are aluminum alloys. They have a moderately high 95% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is 2017A aluminum and the bottom bar is 7020 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 71
70
Elongation at Break, % 2.2 to 14
8.4 to 14
Fatigue Strength, MPa 92 to 130
110 to 130
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 27
26
Shear Strength, MPa 120 to 270
110 to 230
Tensile Strength: Ultimate (UTS), MPa 200 to 460
190 to 390
Tensile Strength: Yield (Proof), MPa 110 to 290
120 to 310

Thermal Properties

Latent Heat of Fusion, J/g 390
380
Maximum Temperature: Mechanical, °C 220
210
Melting Completion (Liquidus), °C 650
650
Melting Onset (Solidus), °C 510
610
Specific Heat Capacity, J/kg-K 880
880
Thermal Conductivity, W/m-K 150
150
Thermal Expansion, µm/m-K 23
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 34
39
Electrical Conductivity: Equal Weight (Specific), % IACS 100
120

Otherwise Unclassified Properties

Base Metal Price, % relative 11
9.5
Density, g/cm3 3.0
2.9
Embodied Carbon, kg CO2/kg material 8.2
8.3
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1140
1150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 6.7 to 53
23 to 46
Resilience: Unit (Modulus of Resilience), kJ/m3 90 to 570
110 to 690
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 46
47
Strength to Weight: Axial, points 19 to 42
18 to 37
Strength to Weight: Bending, points 26 to 44
25 to 41
Thermal Diffusivity, mm2/s 56
59
Thermal Shock Resistance, points 8.9 to 20
8.3 to 17

Alloy Composition

Aluminum (Al), % 91.3 to 95.5
91.2 to 94.8
Chromium (Cr), % 0 to 0.1
0.1 to 0.35
Copper (Cu), % 3.5 to 4.5
0 to 0.2
Iron (Fe), % 0 to 0.7
0 to 0.4
Magnesium (Mg), % 0.4 to 1.0
1.0 to 1.4
Manganese (Mn), % 0.4 to 1.0
0.050 to 0.5
Silicon (Si), % 0.2 to 0.8
0 to 0.35
Titanium (Ti), % 0 to 0.25
0 to 0.25
Zinc (Zn), % 0 to 0.25
4.0 to 5.0
Zirconium (Zr), % 0 to 0.25
0.080 to 0.25
Residuals, % 0
0 to 0.15

Comparable Variants