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A242.0 Aluminum vs. 2618A Aluminum

Both A242.0 aluminum and 2618A aluminum are aluminum alloys. They have a very high 97% of their average alloy composition in common. There are 25 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is A242.0 aluminum and the bottom bar is 2618A aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 73
72
Elongation at Break, % 1.6
4.5
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 27
27
Tensile Strength: Ultimate (UTS), MPa 220
440

Thermal Properties

Latent Heat of Fusion, J/g 390
390
Maximum Temperature: Mechanical, °C 210
230
Melting Completion (Liquidus), °C 680
670
Melting Onset (Solidus), °C 550
560
Specific Heat Capacity, J/kg-K 870
880
Thermal Conductivity, W/m-K 140
150
Thermal Expansion, µm/m-K 23
23

Electrical Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 12
11
Density, g/cm3 3.1
3.0
Embodied Carbon, kg CO2/kg material 8.3
8.4
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1130
1150

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 45
47
Strength to Weight: Axial, points 20
41
Strength to Weight: Bending, points 26
44
Thermal Diffusivity, mm2/s 52
59
Thermal Shock Resistance, points 9.3
19

Alloy Composition


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Aluminum (Al), % 89.3 to 93.1
91.5 to 95.2
Chromium (Cr), % 0.15 to 0.25
0
Copper (Cu), % 3.7 to 4.5
1.8 to 2.7
Iron (Fe), % 0 to 0.8
0.9 to 1.4
Magnesium (Mg), % 1.2 to 1.7
1.2 to 1.8
Manganese (Mn), % 0 to 0.1
0 to 0.25
Nickel (Ni), % 1.8 to 2.3
0.8 to 1.4
Silicon (Si), % 0 to 0.6
0.15 to 0.25
Titanium (Ti), % 0.070 to 0.2
0 to 0.2
Zinc (Zn), % 0 to 0.1
0 to 0.15
Zirconium (Zr), % 0
0 to 0.25
Residuals, % 0 to 0.15
0 to 0.15