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240.0 Aluminum vs. A242.0 Aluminum

Both 240.0 aluminum and A242.0 aluminum are aluminum alloys. They have a moderately high 91% of their average alloy composition in common. There are 25 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is 240.0 aluminum and the bottom bar is A242.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 72
73
Elongation at Break, % 1.0
1.6
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 27
27
Tensile Strength: Ultimate (UTS), MPa 240
220

Thermal Properties

Latent Heat of Fusion, J/g 380
390
Maximum Temperature: Mechanical, °C 180
210
Melting Completion (Liquidus), °C 600
680
Melting Onset (Solidus), °C 520
550
Specific Heat Capacity, J/kg-K 860
870
Thermal Conductivity, W/m-K 96
140
Thermal Expansion, µm/m-K 22
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 23
37
Electrical Conductivity: Equal Weight (Specific), % IACS 65
110

Otherwise Unclassified Properties

Base Metal Price, % relative 12
12
Density, g/cm3 3.2
3.1
Embodied Carbon, kg CO2/kg material 8.7
8.3
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1100
1130

Common Calculations

Stiffness to Weight: Axial, points 12
13
Stiffness to Weight: Bending, points 43
45
Strength to Weight: Axial, points 20
20
Strength to Weight: Bending, points 26
26
Thermal Diffusivity, mm2/s 35
52
Thermal Shock Resistance, points 11
9.3

Alloy Composition

Aluminum (Al), % 81.7 to 86.9
89.3 to 93.1
Chromium (Cr), % 0
0.15 to 0.25
Copper (Cu), % 7.0 to 9.0
3.7 to 4.5
Iron (Fe), % 0 to 0.5
0 to 0.8
Magnesium (Mg), % 5.5 to 6.5
1.2 to 1.7
Manganese (Mn), % 0.3 to 0.7
0 to 0.1
Nickel (Ni), % 0.3 to 0.7
1.8 to 2.3
Silicon (Si), % 0 to 0.5
0 to 0.6
Titanium (Ti), % 0 to 0.2
0.070 to 0.2
Zinc (Zn), % 0 to 0.1
0 to 0.1
Residuals, % 0
0 to 0.15