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2018 Aluminum vs. 240.0 Aluminum

Both 2018 aluminum and 240.0 aluminum are aluminum alloys. They have a moderately high 90% of their average alloy composition in common. There are 29 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is 2018 aluminum and the bottom bar is 240.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 73
72
Elongation at Break, % 9.6
1.0
Fatigue Strength, MPa 120
140
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 27
27
Tensile Strength: Ultimate (UTS), MPa 420
240
Tensile Strength: Yield (Proof), MPa 310
200

Thermal Properties

Latent Heat of Fusion, J/g 390
380
Maximum Temperature: Mechanical, °C 220
180
Melting Completion (Liquidus), °C 640
600
Melting Onset (Solidus), °C 510
520
Specific Heat Capacity, J/kg-K 870
860
Thermal Conductivity, W/m-K 150
96
Thermal Expansion, µm/m-K 22
22

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 40
23
Electrical Conductivity: Equal Weight (Specific), % IACS 120
65

Otherwise Unclassified Properties

Base Metal Price, % relative 11
12
Density, g/cm3 3.1
3.2
Embodied Carbon, kg CO2/kg material 8.1
8.7
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1130
1100

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 37
2.2
Resilience: Unit (Modulus of Resilience), kJ/m3 670
280
Stiffness to Weight: Axial, points 13
12
Stiffness to Weight: Bending, points 45
43
Strength to Weight: Axial, points 38
20
Strength to Weight: Bending, points 41
26
Thermal Diffusivity, mm2/s 57
35
Thermal Shock Resistance, points 19
11

Alloy Composition


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Aluminum (Al), % 89.7 to 94.4
81.7 to 86.9
Chromium (Cr), % 0 to 0.1
0
Copper (Cu), % 3.5 to 4.5
7.0 to 9.0
Iron (Fe), % 0 to 1.0
0 to 0.5
Magnesium (Mg), % 0.45 to 0.9
5.5 to 6.5
Manganese (Mn), % 0 to 0.2
0.3 to 0.7
Nickel (Ni), % 1.7 to 2.3
0.3 to 0.7
Silicon (Si), % 0 to 0.9
0 to 0.5
Titanium (Ti), % 0
0 to 0.2
Zinc (Zn), % 0 to 0.25
0 to 0.1
Residuals, % 0 to 0.15
0 to 0.15