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390.0 Aluminum vs. 7108A Aluminum

Both 390.0 aluminum and 7108A aluminum are aluminum alloys. They have 78% 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 390.0 aluminum and the bottom bar is 7108A aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 75
69
Elongation at Break, % 1.0
11 to 13
Fatigue Strength, MPa 76 to 110
120 to 130
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 28
26
Tensile Strength: Ultimate (UTS), MPa 280 to 300
350
Tensile Strength: Yield (Proof), MPa 240 to 270
290 to 300

Thermal Properties

Latent Heat of Fusion, J/g 640
380
Maximum Temperature: Mechanical, °C 170
210
Melting Completion (Liquidus), °C 650
630
Melting Onset (Solidus), °C 560
520
Specific Heat Capacity, J/kg-K 880
870
Thermal Conductivity, W/m-K 130
150
Thermal Expansion, µm/m-K 18
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 24 to 25
36
Electrical Conductivity: Equal Weight (Specific), % IACS 79 to 83
110

Otherwise Unclassified Properties

Base Metal Price, % relative 11
10
Density, g/cm3 2.7
2.9
Embodied Carbon, kg CO2/kg material 7.3
8.3
Embodied Energy, MJ/kg 130
150
Embodied Water, L/kg 950
1150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.7 to 2.9
38 to 44
Resilience: Unit (Modulus of Resilience), kJ/m3 380 to 470
610 to 640
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 52
47
Strength to Weight: Axial, points 28 to 30
33 to 34
Strength to Weight: Bending, points 35 to 36
38
Thermal Diffusivity, mm2/s 56
59
Thermal Shock Resistance, points 14 to 15
15 to 16

Alloy Composition


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Aluminum (Al), % 74.5 to 79.6
91.6 to 94.4
Chromium (Cr), % 0
0 to 0.040
Copper (Cu), % 4.0 to 5.0
0 to 0.050
Gallium (Ga), % 0
0 to 0.030
Iron (Fe), % 0 to 1.3
0 to 0.3
Magnesium (Mg), % 0.45 to 0.65
0.7 to 1.5
Manganese (Mn), % 0 to 0.1
0 to 0.050
Silicon (Si), % 16 to 18
0 to 0.2
Titanium (Ti), % 0 to 0.2
0 to 0.030
Zinc (Zn), % 0 to 0.1
4.8 to 5.8
Zirconium (Zr), % 0
0.15 to 0.25
Residuals, % 0 to 0.2
0 to 0.15