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5070 Aluminum vs. 7020 Aluminum

Both 5070 aluminum and 7020 aluminum are aluminum alloys. They have a very high 96% 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 5070 aluminum and the bottom bar is 7020 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 68
70
Elongation at Break, % 20
8.4 to 14
Fatigue Strength, MPa 150
110 to 130
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 26
26
Shear Strength, MPa 190
110 to 230
Tensile Strength: Ultimate (UTS), MPa 300
190 to 390
Tensile Strength: Yield (Proof), MPa 140
120 to 310

Thermal Properties

Latent Heat of Fusion, J/g 390
380
Maximum Temperature: Mechanical, °C 190
210
Melting Completion (Liquidus), °C 640
650
Melting Onset (Solidus), °C 550
610
Specific Heat Capacity, J/kg-K 900
880
Thermal Conductivity, W/m-K 130
150
Thermal Expansion, µm/m-K 24
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 31
39
Electrical Conductivity: Equal Weight (Specific), % IACS 100
120

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
9.5
Density, g/cm3 2.7
2.9
Embodied Carbon, kg CO2/kg material 8.8
8.3
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1170
1150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 51
23 to 46
Resilience: Unit (Modulus of Resilience), kJ/m3 150
110 to 690
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 50
47
Strength to Weight: Axial, points 31
18 to 37
Strength to Weight: Bending, points 37
25 to 41
Thermal Diffusivity, mm2/s 53
59
Thermal Shock Resistance, points 14
8.3 to 17

Alloy Composition

Aluminum (Al), % 92.4 to 95.7
91.2 to 94.8
Chromium (Cr), % 0 to 0.3
0.1 to 0.35
Copper (Cu), % 0 to 0.25
0 to 0.2
Iron (Fe), % 0 to 0.4
0 to 0.4
Magnesium (Mg), % 3.5 to 4.5
1.0 to 1.4
Manganese (Mn), % 0.4 to 0.8
0.050 to 0.5
Silicon (Si), % 0 to 0.25
0 to 0.35
Titanium (Ti), % 0 to 0.15
0 to 0.25
Zinc (Zn), % 0.4 to 0.8
4.0 to 5.0
Zirconium (Zr), % 0
0.080 to 0.25
Residuals, % 0 to 0.15
0 to 0.15