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6012 Aluminum vs. 2618A Aluminum

Both 6012 aluminum and 2618A aluminum are aluminum alloys. They have a very high 95% of their average alloy composition in common.

For each property being compared, the top bar is 6012 aluminum and the bottom bar is 2618A aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
72
Elongation at Break, % 9.1 to 11
4.5
Fatigue Strength, MPa 55 to 100
120
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 26
27
Shear Strength, MPa 130 to 190
260
Tensile Strength: Ultimate (UTS), MPa 220 to 320
440
Tensile Strength: Yield (Proof), MPa 110 to 260
410

Thermal Properties

Latent Heat of Fusion, J/g 400
390
Maximum Temperature: Mechanical, °C 170
230
Melting Completion (Liquidus), °C 640
670
Melting Onset (Solidus), °C 570
560
Specific Heat Capacity, J/kg-K 890
880
Thermal Conductivity, W/m-K 160
150
Thermal Expansion, µm/m-K 23
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 45
37
Electrical Conductivity: Equal Weight (Specific), % IACS 140
110

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
11
Density, g/cm3 2.9
3.0
Embodied Carbon, kg CO2/kg material 8.2
8.4
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1170
1150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 21 to 28
19
Resilience: Unit (Modulus of Resilience), kJ/m3 94 to 480
1180
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 48
47
Strength to Weight: Axial, points 22 to 32
41
Strength to Weight: Bending, points 29 to 37
44
Thermal Diffusivity, mm2/s 62
59
Thermal Shock Resistance, points 10 to 14
19

Alloy Composition

Aluminum (Al), % 92.2 to 98
91.5 to 95.2
Bismuth (Bi), % 0 to 0.7
0
Chromium (Cr), % 0 to 0.3
0
Copper (Cu), % 0 to 0.1
1.8 to 2.7
Iron (Fe), % 0 to 0.5
0.9 to 1.4
Lead (Pb), % 0.4 to 2.0
0
Magnesium (Mg), % 0.6 to 1.2
1.2 to 1.8
Manganese (Mn), % 0.4 to 1.0
0 to 0.25
Nickel (Ni), % 0
0.8 to 1.4
Silicon (Si), % 0.6 to 1.4
0.15 to 0.25
Titanium (Ti), % 0 to 0.2
0 to 0.2
Zinc (Zn), % 0 to 0.3
0 to 0.15
Zirconium (Zr), % 0
0 to 0.25
Residuals, % 0
0 to 0.15