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6063 Aluminum vs. 7020 Aluminum

Both 6063 aluminum and 7020 aluminum are aluminum alloys. They have a moderately high 94% of their average alloy composition in common. There are 31 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 6063 aluminum and the bottom bar is 7020 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 25 to 95
45 to 100
Elastic (Young's, Tensile) Modulus, GPa 68
70
Elongation at Break, % 7.3 to 21
8.4 to 14
Fatigue Strength, MPa 39 to 95
110 to 130
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 26
26
Shear Strength, MPa 70 to 190
110 to 230
Tensile Strength: Ultimate (UTS), MPa 110 to 300
190 to 390
Tensile Strength: Yield (Proof), MPa 49 to 270
120 to 310

Thermal Properties

Latent Heat of Fusion, J/g 400
380
Maximum Temperature: Mechanical, °C 160
210
Melting Completion (Liquidus), °C 650
650
Melting Onset (Solidus), °C 620
610
Specific Heat Capacity, J/kg-K 900
880
Thermal Conductivity, W/m-K 190 to 220
150
Thermal Expansion, µm/m-K 23
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 49 to 58
39
Electrical Conductivity: Equal Weight (Specific), % IACS 160 to 190
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 8.3
8.3
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1190
1150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 13 to 27
23 to 46
Resilience: Unit (Modulus of Resilience), kJ/m3 18 to 540
110 to 690
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 50
47
Strength to Weight: Axial, points 11 to 31
18 to 37
Strength to Weight: Bending, points 18 to 37
25 to 41
Thermal Diffusivity, mm2/s 79 to 89
59
Thermal Shock Resistance, points 4.8 to 13
8.3 to 17

Alloy Composition

Aluminum (Al), % 97.5 to 99.4
91.2 to 94.8
Chromium (Cr), % 0 to 0.1
0.1 to 0.35
Copper (Cu), % 0 to 0.1
0 to 0.2
Iron (Fe), % 0 to 0.35
0 to 0.4
Magnesium (Mg), % 0.45 to 0.9
1.0 to 1.4
Manganese (Mn), % 0 to 0.1
0.050 to 0.5
Silicon (Si), % 0.2 to 0.6
0 to 0.35
Titanium (Ti), % 0 to 0.1
0 to 0.25
Zinc (Zn), % 0 to 0.1
4.0 to 5.0
Zirconium (Zr), % 0
0.080 to 0.25
Residuals, % 0 to 0.15
0 to 0.15

Comparable Variants