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5051A Aluminum vs. 2618 Aluminum

Both 5051A aluminum and 2618 aluminum are aluminum alloys. They have a very high 96% of their average alloy composition in common. There are 30 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 5051A aluminum and the bottom bar is 2618 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 68
71
Elongation at Break, % 18 to 21
5.8
Fatigue Strength, MPa 51 to 61
110
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 26
27
Shear Strength, MPa 110
260
Tensile Strength: Ultimate (UTS), MPa 170
420
Tensile Strength: Yield (Proof), MPa 56
350

Thermal Properties

Latent Heat of Fusion, J/g 400
390
Maximum Temperature: Mechanical, °C 190
210
Melting Completion (Liquidus), °C 640
640
Melting Onset (Solidus), °C 610
550
Specific Heat Capacity, J/kg-K 900
880
Thermal Conductivity, W/m-K 150
160
Thermal Expansion, µm/m-K 23
22

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 39
37
Electrical Conductivity: Equal Weight (Specific), % IACS 130
110

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
11
Density, g/cm3 2.7
2.9
Embodied Carbon, kg CO2/kg material 8.5
8.3
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1190
1150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 24 to 27
23
Resilience: Unit (Modulus of Resilience), kJ/m3 23
850
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 50
47
Strength to Weight: Axial, points 17 to 18
40
Strength to Weight: Bending, points 25
42
Thermal Diffusivity, mm2/s 63
62
Thermal Shock Resistance, points 7.6
19

Alloy Composition

Aluminum (Al), % 96.1 to 98.6
92.4 to 94.9
Chromium (Cr), % 0 to 0.3
0
Copper (Cu), % 0 to 0.050
1.9 to 2.7
Iron (Fe), % 0 to 0.45
0.9 to 1.3
Magnesium (Mg), % 1.4 to 2.1
1.3 to 1.8
Manganese (Mn), % 0 to 0.25
0
Nickel (Ni), % 0
0.9 to 1.2
Silicon (Si), % 0 to 0.3
0.1 to 0.25
Titanium (Ti), % 0 to 0.1
0.040 to 0.1
Zinc (Zn), % 0 to 0.2
0 to 0.1
Residuals, % 0
0 to 0.15