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7108A Aluminum vs. A242.0 Aluminum

Both 7108A aluminum and A242.0 aluminum are aluminum alloys. They have a moderately high 93% 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 7108A aluminum and the bottom bar is A242.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
73
Elongation at Break, % 11 to 13
1.6
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 26
27
Tensile Strength: Ultimate (UTS), MPa 350
220

Thermal Properties

Latent Heat of Fusion, J/g 380
390
Maximum Temperature: Mechanical, °C 210
210
Melting Completion (Liquidus), °C 630
680
Melting Onset (Solidus), °C 520
550
Specific Heat Capacity, J/kg-K 870
870
Thermal Conductivity, W/m-K 150
140
Thermal Expansion, µm/m-K 24
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 36
37
Electrical Conductivity: Equal Weight (Specific), % IACS 110
110

Otherwise Unclassified Properties

Base Metal Price, % relative 10
12
Density, g/cm3 2.9
3.1
Embodied Carbon, kg CO2/kg material 8.3
8.3
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1150
1130

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 47
45
Strength to Weight: Axial, points 33 to 34
20
Strength to Weight: Bending, points 38
26
Thermal Diffusivity, mm2/s 59
52
Thermal Shock Resistance, points 15 to 16
9.3

Alloy Composition


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Aluminum (Al), % 91.6 to 94.4
89.3 to 93.1
Chromium (Cr), % 0 to 0.040
0.15 to 0.25
Copper (Cu), % 0 to 0.050
3.7 to 4.5
Gallium (Ga), % 0 to 0.030
0
Iron (Fe), % 0 to 0.3
0 to 0.8
Magnesium (Mg), % 0.7 to 1.5
1.2 to 1.7
Manganese (Mn), % 0 to 0.050
0 to 0.1
Nickel (Ni), % 0
1.8 to 2.3
Silicon (Si), % 0 to 0.2
0 to 0.6
Titanium (Ti), % 0 to 0.030
0.070 to 0.2
Zinc (Zn), % 4.8 to 5.8
0 to 0.1
Zirconium (Zr), % 0.15 to 0.25
0
Residuals, % 0 to 0.15
0 to 0.15