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5182 Aluminum vs. 8021 Aluminum

Both 5182 aluminum and 8021 aluminum are aluminum alloys. They have a moderately high 95% 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 5182 aluminum and the bottom bar is 8021 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 68
70
Elongation at Break, % 1.1 to 12
2.3
Fatigue Strength, MPa 100 to 130
61
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 25
26
Tensile Strength: Ultimate (UTS), MPa 280 to 420
160
Tensile Strength: Yield (Proof), MPa 130 to 360
130

Thermal Properties

Latent Heat of Fusion, J/g 390
400
Maximum Temperature: Mechanical, °C 180
170
Melting Completion (Liquidus), °C 640
650
Melting Onset (Solidus), °C 590
640
Specific Heat Capacity, J/kg-K 900
900
Thermal Conductivity, W/m-K 130
220
Thermal Expansion, µm/m-K 24
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 28
56
Electrical Conductivity: Equal Weight (Specific), % IACS 94
180

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
9.0
Density, g/cm3 2.7
2.8
Embodied Carbon, kg CO2/kg material 8.9
8.1
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1180
1180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.6 to 49
3.4
Resilience: Unit (Modulus of Resilience), kJ/m3 120 to 950
130
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 51
49
Strength to Weight: Axial, points 29 to 44
16
Strength to Weight: Bending, points 36 to 47
23
Thermal Diffusivity, mm2/s 53
88
Thermal Shock Resistance, points 12 to 19
7.0

Alloy Composition

Aluminum (Al), % 93.2 to 95.8
98 to 98.8
Chromium (Cr), % 0 to 0.1
0
Copper (Cu), % 0 to 0.15
0 to 0.050
Iron (Fe), % 0 to 0.35
1.2 to 1.7
Magnesium (Mg), % 4.0 to 5.0
0
Manganese (Mn), % 0.2 to 0.5
0
Silicon (Si), % 0 to 0.2
0 to 0.15
Titanium (Ti), % 0 to 0.1
0
Zinc (Zn), % 0 to 0.25
0
Residuals, % 0
0 to 0.15