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8021 Aluminum vs. 356.0 Aluminum

Both 8021 aluminum and 356.0 aluminum are aluminum alloys. They have a moderately high 92% of their average alloy composition in common. There are 29 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is 8021 aluminum and the bottom bar is 356.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
70
Elongation at Break, % 2.3
2.0 to 3.8
Fatigue Strength, MPa 61
55 to 75
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 26
27
Tensile Strength: Ultimate (UTS), MPa 160
160 to 240
Tensile Strength: Yield (Proof), MPa 130
100 to 190

Thermal Properties

Latent Heat of Fusion, J/g 400
500
Maximum Temperature: Mechanical, °C 170
170
Melting Completion (Liquidus), °C 650
620
Melting Onset (Solidus), °C 640
570
Specific Heat Capacity, J/kg-K 900
900
Thermal Conductivity, W/m-K 220
150 to 170
Thermal Expansion, µm/m-K 23
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 56
40 to 43
Electrical Conductivity: Equal Weight (Specific), % IACS 180
140 to 150

Otherwise Unclassified Properties

Base Metal Price, % relative 9.0
9.5
Density, g/cm3 2.8
2.6
Embodied Carbon, kg CO2/kg material 8.1
8.0
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1180
1110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 3.4
3.2 to 8.2
Resilience: Unit (Modulus of Resilience), kJ/m3 130
70 to 250
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 49
53
Strength to Weight: Axial, points 16
17 to 26
Strength to Weight: Bending, points 23
25 to 33
Thermal Diffusivity, mm2/s 88
64 to 71
Thermal Shock Resistance, points 7.0
7.6 to 11

Alloy Composition

Aluminum (Al), % 98 to 98.8
90.1 to 93.3
Copper (Cu), % 0 to 0.050
0 to 0.25
Iron (Fe), % 1.2 to 1.7
0 to 0.6
Magnesium (Mg), % 0
0.2 to 0.45
Manganese (Mn), % 0
0 to 0.35
Silicon (Si), % 0 to 0.15
6.5 to 7.5
Titanium (Ti), % 0
0 to 0.25
Zinc (Zn), % 0
0 to 0.35
Residuals, % 0
0 to 0.15