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8021 Aluminum vs. 355.0 Aluminum

Both 8021 aluminum and 355.0 aluminum are aluminum alloys. They have a moderately high 93% of their average alloy composition in common. There are 29 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is 8021 aluminum and the bottom bar is 355.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
71
Elongation at Break, % 2.3
1.5 to 2.6
Fatigue Strength, MPa 61
55 to 70
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 26
27
Tensile Strength: Ultimate (UTS), MPa 160
200 to 260
Tensile Strength: Yield (Proof), MPa 130
150 to 190

Thermal Properties

Latent Heat of Fusion, J/g 400
470
Maximum Temperature: Mechanical, °C 170
180
Melting Completion (Liquidus), °C 650
620
Melting Onset (Solidus), °C 640
560
Specific Heat Capacity, J/kg-K 900
890
Thermal Conductivity, W/m-K 220
150 to 170
Thermal Expansion, µm/m-K 23
22

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 56
38 to 43
Electrical Conductivity: Equal Weight (Specific), % IACS 180
120 to 140

Otherwise Unclassified Properties

Base Metal Price, % relative 9.0
9.5
Density, g/cm3 2.8
2.7
Embodied Carbon, kg CO2/kg material 8.1
8.0
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1180
1120

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 3.4
2.7 to 5.9
Resilience: Unit (Modulus of Resilience), kJ/m3 130
150 to 250
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 49
51
Strength to Weight: Axial, points 16
20 to 27
Strength to Weight: Bending, points 23
28 to 33
Thermal Diffusivity, mm2/s 88
60 to 69
Thermal Shock Resistance, points 7.0
9.1 to 12

Alloy Composition

Aluminum (Al), % 98 to 98.8
90.3 to 94.1
Chromium (Cr), % 0
0 to 0.25
Copper (Cu), % 0 to 0.050
1.0 to 1.5
Iron (Fe), % 1.2 to 1.7
0 to 0.6
Magnesium (Mg), % 0
0.4 to 0.6
Manganese (Mn), % 0
0 to 0.5
Silicon (Si), % 0 to 0.15
4.5 to 5.5
Titanium (Ti), % 0
0 to 0.25
Zinc (Zn), % 0
0 to 0.35
Residuals, % 0
0 to 0.15