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7020 Aluminum vs. 2030 Aluminum

Both 7020 aluminum and 2030 aluminum are aluminum alloys. They have a moderately high 94% 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 7020 aluminum and the bottom bar is 2030 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
70
Elongation at Break, % 8.4 to 14
5.6 to 8.0
Fatigue Strength, MPa 110 to 130
91 to 110
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 26
26
Shear Strength, MPa 110 to 230
220 to 250
Tensile Strength: Ultimate (UTS), MPa 190 to 390
370 to 420
Tensile Strength: Yield (Proof), MPa 120 to 310
240 to 270

Thermal Properties

Latent Heat of Fusion, J/g 380
390
Maximum Temperature: Mechanical, °C 210
190
Melting Completion (Liquidus), °C 650
640
Melting Onset (Solidus), °C 610
510
Specific Heat Capacity, J/kg-K 880
870
Thermal Conductivity, W/m-K 150
130
Thermal Expansion, µm/m-K 23
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 39
34
Electrical Conductivity: Equal Weight (Specific), % IACS 120
99

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
10
Density, g/cm3 2.9
3.1
Embodied Carbon, kg CO2/kg material 8.3
8.0
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1150
1140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 23 to 46
21 to 26
Resilience: Unit (Modulus of Resilience), kJ/m3 110 to 690
390 to 530
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 47
45
Strength to Weight: Axial, points 18 to 37
33 to 38
Strength to Weight: Bending, points 25 to 41
37 to 40
Thermal Diffusivity, mm2/s 59
50
Thermal Shock Resistance, points 8.3 to 17
16 to 19

Alloy Composition


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Aluminum (Al), % 91.2 to 94.8
88.9 to 95.2
Bismuth (Bi), % 0
0 to 0.2
Chromium (Cr), % 0.1 to 0.35
0 to 0.1
Copper (Cu), % 0 to 0.2
3.3 to 4.5
Iron (Fe), % 0 to 0.4
0 to 0.7
Lead (Pb), % 0
0.8 to 1.5
Magnesium (Mg), % 1.0 to 1.4
0.5 to 1.3
Manganese (Mn), % 0.050 to 0.5
0.2 to 1.0
Silicon (Si), % 0 to 0.35
0 to 0.8
Titanium (Ti), % 0 to 0.25
0 to 0.2
Zinc (Zn), % 4.0 to 5.0
0 to 0.5
Zirconium (Zr), % 0.080 to 0.25
0
Residuals, % 0 to 0.15
0 to 0.3

Comparable Variants