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8021 Aluminum vs. A384.0 Aluminum

Both 8021 aluminum and A384.0 aluminum are aluminum alloys. They have 84% of their average alloy composition in common. There are 29 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 8021 aluminum and the bottom bar is A384.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
74
Elongation at Break, % 2.3
2.5
Fatigue Strength, MPa 61
140
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 26
28
Tensile Strength: Ultimate (UTS), MPa 160
330
Tensile Strength: Yield (Proof), MPa 130
170

Thermal Properties

Latent Heat of Fusion, J/g 400
550
Maximum Temperature: Mechanical, °C 170
170
Melting Completion (Liquidus), °C 650
610
Melting Onset (Solidus), °C 640
510
Specific Heat Capacity, J/kg-K 900
880
Thermal Conductivity, W/m-K 220
96
Thermal Expansion, µm/m-K 23
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 56
23
Electrical Conductivity: Equal Weight (Specific), % IACS 180
73

Otherwise Unclassified Properties

Base Metal Price, % relative 9.0
11
Density, g/cm3 2.8
2.8
Embodied Carbon, kg CO2/kg material 8.1
7.5
Embodied Energy, MJ/kg 150
140
Embodied Water, L/kg 1180
1010

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 3.4
6.9
Resilience: Unit (Modulus of Resilience), kJ/m3 130
180
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 49
50
Strength to Weight: Axial, points 16
32
Strength to Weight: Bending, points 23
38
Thermal Diffusivity, mm2/s 88
39
Thermal Shock Resistance, points 7.0
15

Alloy Composition

Aluminum (Al), % 98 to 98.8
79.3 to 86.5
Copper (Cu), % 0 to 0.050
3.0 to 4.5
Iron (Fe), % 1.2 to 1.7
0 to 1.3
Magnesium (Mg), % 0
0 to 0.1
Manganese (Mn), % 0
0 to 0.5
Nickel (Ni), % 0
0 to 0.5
Silicon (Si), % 0 to 0.15
10.5 to 12
Tin (Sn), % 0
0 to 0.35
Zinc (Zn), % 0
0 to 1.0
Residuals, % 0
0 to 0.5