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6012 Aluminum vs. 8021 Aluminum

Both 6012 aluminum and 8021 aluminum are aluminum alloys. They have a very high 96% 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 6012 aluminum and the bottom bar is 8021 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
70
Elongation at Break, % 9.1 to 11
2.3
Fatigue Strength, MPa 55 to 100
61
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 26
26
Tensile Strength: Ultimate (UTS), MPa 220 to 320
160
Tensile Strength: Yield (Proof), MPa 110 to 260
130

Thermal Properties

Latent Heat of Fusion, J/g 400
400
Maximum Temperature: Mechanical, °C 170
170
Melting Completion (Liquidus), °C 640
650
Melting Onset (Solidus), °C 570
640
Specific Heat Capacity, J/kg-K 890
900
Thermal Conductivity, W/m-K 160
220
Thermal Expansion, µm/m-K 23
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 45
56
Electrical Conductivity: Equal Weight (Specific), % IACS 140
180

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
9.0
Density, g/cm3 2.9
2.8
Embodied Carbon, kg CO2/kg material 8.2
8.1
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1170
1180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 21 to 28
3.4
Resilience: Unit (Modulus of Resilience), kJ/m3 94 to 480
130
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 48
49
Strength to Weight: Axial, points 22 to 32
16
Strength to Weight: Bending, points 29 to 37
23
Thermal Diffusivity, mm2/s 62
88
Thermal Shock Resistance, points 10 to 14
7.0

Alloy Composition

Aluminum (Al), % 92.2 to 98
98 to 98.8
Bismuth (Bi), % 0 to 0.7
0
Chromium (Cr), % 0 to 0.3
0
Copper (Cu), % 0 to 0.1
0 to 0.050
Iron (Fe), % 0 to 0.5
1.2 to 1.7
Lead (Pb), % 0.4 to 2.0
0
Magnesium (Mg), % 0.6 to 1.2
0
Manganese (Mn), % 0.4 to 1.0
0
Silicon (Si), % 0.6 to 1.4
0 to 0.15
Titanium (Ti), % 0 to 0.2
0
Zinc (Zn), % 0 to 0.3
0
Residuals, % 0
0 to 0.15