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390.0 Aluminum vs. 7175 Aluminum

Both 390.0 aluminum and 7175 aluminum are aluminum alloys. They have 80% 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 7175 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 75
70
Elongation at Break, % 1.0
3.8 to 5.9
Fatigue Strength, MPa 76 to 110
150 to 180
Poisson's Ratio 0.33
0.32
Shear Modulus, GPa 28
26
Tensile Strength: Ultimate (UTS), MPa 280 to 300
520 to 570
Tensile Strength: Yield (Proof), MPa 240 to 270
430 to 490

Thermal Properties

Latent Heat of Fusion, J/g 640
380
Maximum Temperature: Mechanical, °C 170
180
Melting Completion (Liquidus), °C 650
640
Melting Onset (Solidus), °C 560
480
Specific Heat Capacity, J/kg-K 880
870
Thermal Conductivity, W/m-K 130
140
Thermal Expansion, µm/m-K 18
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 24 to 25
33
Electrical Conductivity: Equal Weight (Specific), % IACS 79 to 83
99

Otherwise Unclassified Properties

Base Metal Price, % relative 11
10
Density, g/cm3 2.7
3.0
Embodied Carbon, kg CO2/kg material 7.3
8.2
Embodied Energy, MJ/kg 130
150
Embodied Water, L/kg 950
1130

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.7 to 2.9
18 to 29
Resilience: Unit (Modulus of Resilience), kJ/m3 380 to 470
1310 to 1730
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 52
46
Strength to Weight: Axial, points 28 to 30
48 to 52
Strength to Weight: Bending, points 35 to 36
48 to 51
Thermal Diffusivity, mm2/s 56
53
Thermal Shock Resistance, points 14 to 15
23 to 25

Alloy Composition

Aluminum (Al), % 74.5 to 79.6
88 to 91.4
Chromium (Cr), % 0
0.18 to 0.28
Copper (Cu), % 4.0 to 5.0
1.2 to 2.0
Iron (Fe), % 0 to 1.3
0 to 0.2
Magnesium (Mg), % 0.45 to 0.65
2.1 to 2.9
Manganese (Mn), % 0 to 0.1
0 to 0.1
Silicon (Si), % 16 to 18
0 to 0.15
Titanium (Ti), % 0 to 0.2
0 to 0.1
Zinc (Zn), % 0 to 0.1
5.1 to 6.1
Residuals, % 0
0 to 0.15