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5021 Aluminum vs. 6012 Aluminum

Both 5021 aluminum and 6012 aluminum are aluminum alloys. They have a very high 97% of their average alloy composition in common.

For each property being compared, the top bar is 5021 aluminum and the bottom bar is 6012 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 68
69
Elongation at Break, % 1.1 to 3.4
9.1 to 11
Fatigue Strength, MPa 85 to 110
55 to 100
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 26
26
Shear Strength, MPa 170
130 to 190
Tensile Strength: Ultimate (UTS), MPa 300 to 310
220 to 320
Tensile Strength: Yield (Proof), MPa 240 to 270
110 to 260

Thermal Properties

Latent Heat of Fusion, J/g 400
400
Maximum Temperature: Mechanical, °C 180
170
Melting Completion (Liquidus), °C 640
640
Melting Onset (Solidus), °C 590
570
Specific Heat Capacity, J/kg-K 900
890
Thermal Conductivity, W/m-K 140
160
Thermal Expansion, µm/m-K 23
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 35
45
Electrical Conductivity: Equal Weight (Specific), % IACS 120
140

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
9.5
Density, g/cm3 2.7
2.9
Embodied Carbon, kg CO2/kg material 8.6
8.2
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1180
1170

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 3.1 to 10
21 to 28
Resilience: Unit (Modulus of Resilience), kJ/m3 440 to 550
94 to 480
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 50
48
Strength to Weight: Axial, points 30 to 32
22 to 32
Strength to Weight: Bending, points 37
29 to 37
Thermal Diffusivity, mm2/s 57
62
Thermal Shock Resistance, points 13 to 14
10 to 14

Alloy Composition

Aluminum (Al), % 95.2 to 97.7
92.2 to 98
Bismuth (Bi), % 0
0 to 0.7
Chromium (Cr), % 0 to 0.15
0 to 0.3
Copper (Cu), % 0 to 0.15
0 to 0.1
Iron (Fe), % 0 to 0.5
0 to 0.5
Lead (Pb), % 0
0.4 to 2.0
Magnesium (Mg), % 2.2 to 2.8
0.6 to 1.2
Manganese (Mn), % 0.1 to 0.5
0.4 to 1.0
Silicon (Si), % 0 to 0.4
0.6 to 1.4
Titanium (Ti), % 0
0 to 0.2
Zinc (Zn), % 0 to 0.15
0 to 0.3
Residuals, % 0
0 to 0.15