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380.0 Aluminum vs. 7020 Aluminum

Both 380.0 aluminum and 7020 aluminum are aluminum alloys. They have 87% of their average alloy composition in common.

For each property being compared, the top bar is 380.0 aluminum and the bottom bar is 7020 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 80
45 to 100
Elastic (Young's, Tensile) Modulus, GPa 74
70
Elongation at Break, % 3.0
8.4 to 14
Fatigue Strength, MPa 140
110 to 130
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 28
26
Shear Strength, MPa 190
110 to 230
Tensile Strength: Ultimate (UTS), MPa 320
190 to 390
Tensile Strength: Yield (Proof), MPa 160
120 to 310

Thermal Properties

Latent Heat of Fusion, J/g 510
380
Maximum Temperature: Mechanical, °C 170
210
Melting Completion (Liquidus), °C 590
650
Melting Onset (Solidus), °C 540
610
Specific Heat Capacity, J/kg-K 870
880
Thermal Conductivity, W/m-K 100
150
Thermal Expansion, µm/m-K 22
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 27
39
Electrical Conductivity: Equal Weight (Specific), % IACS 83
120

Otherwise Unclassified Properties

Base Metal Price, % relative 10
9.5
Density, g/cm3 2.9
2.9
Embodied Carbon, kg CO2/kg material 7.5
8.3
Embodied Energy, MJ/kg 140
150
Embodied Water, L/kg 1040
1150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 8.0
23 to 46
Resilience: Unit (Modulus of Resilience), kJ/m3 170
110 to 690
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 48
47
Strength to Weight: Axial, points 31
18 to 37
Strength to Weight: Bending, points 36
25 to 41
Thermal Diffusivity, mm2/s 40
59
Thermal Shock Resistance, points 14
8.3 to 17

Alloy Composition

Aluminum (Al), % 79.6 to 89.5
91.2 to 94.8
Chromium (Cr), % 0
0.1 to 0.35
Copper (Cu), % 3.0 to 4.0
0 to 0.2
Iron (Fe), % 0 to 2.0
0 to 0.4
Magnesium (Mg), % 0 to 0.1
1.0 to 1.4
Manganese (Mn), % 0 to 0.5
0.050 to 0.5
Nickel (Ni), % 0 to 0.5
0
Silicon (Si), % 7.5 to 9.5
0 to 0.35
Tin (Sn), % 0 to 0.35
0
Titanium (Ti), % 0
0 to 0.25
Zinc (Zn), % 0 to 3.0
4.0 to 5.0
Zirconium (Zr), % 0
0.080 to 0.25
Residuals, % 0
0 to 0.15