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8021 Aluminum vs. 392.0 Aluminum

Both 8021 aluminum and 392.0 aluminum are aluminum alloys. They have 78% of their average alloy composition in common.

For each property being compared, the top bar is 8021 aluminum and the bottom bar is 392.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
75
Elongation at Break, % 2.3
0.86
Fatigue Strength, MPa 61
190
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 26
28
Tensile Strength: Ultimate (UTS), MPa 160
290
Tensile Strength: Yield (Proof), MPa 130
270

Thermal Properties

Latent Heat of Fusion, J/g 400
670
Maximum Temperature: Mechanical, °C 170
170
Melting Completion (Liquidus), °C 650
670
Melting Onset (Solidus), °C 640
580
Specific Heat Capacity, J/kg-K 900
900
Thermal Conductivity, W/m-K 220
130
Thermal Expansion, µm/m-K 23
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 56
25
Electrical Conductivity: Equal Weight (Specific), % IACS 180
90

Otherwise Unclassified Properties

Base Metal Price, % relative 9.0
10
Density, g/cm3 2.8
2.5
Embodied Carbon, kg CO2/kg material 8.1
7.5
Embodied Energy, MJ/kg 150
140
Embodied Water, L/kg 1180
950

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 3.4
2.4
Resilience: Unit (Modulus of Resilience), kJ/m3 130
490
Stiffness to Weight: Axial, points 14
17
Stiffness to Weight: Bending, points 49
56
Strength to Weight: Axial, points 16
32
Strength to Weight: Bending, points 23
39
Thermal Diffusivity, mm2/s 88
60
Thermal Shock Resistance, points 7.0
15

Alloy Composition

Aluminum (Al), % 98 to 98.8
73.9 to 80.6
Copper (Cu), % 0 to 0.050
0.4 to 0.8
Iron (Fe), % 1.2 to 1.7
0 to 1.5
Magnesium (Mg), % 0
0.8 to 1.2
Manganese (Mn), % 0
0.2 to 0.6
Nickel (Ni), % 0
0 to 0.5
Silicon (Si), % 0 to 0.15
18 to 20
Tin (Sn), % 0
0 to 0.3
Titanium (Ti), % 0
0 to 0.2
Zinc (Zn), % 0
0 to 0.5
Residuals, % 0
0 to 0.5