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7075 Aluminum vs. 238.0 Aluminum

Both 7075 aluminum and 238.0 aluminum are aluminum alloys. They have 87% 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 7075 aluminum and the bottom bar is 238.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
76
Elongation at Break, % 1.8 to 12
1.5
Fatigue Strength, MPa 110 to 190
110
Poisson's Ratio 0.32
0.33
Shear Modulus, GPa 26
28
Tensile Strength: Ultimate (UTS), MPa 240 to 590
210
Tensile Strength: Yield (Proof), MPa 120 to 510
170

Thermal Properties

Latent Heat of Fusion, J/g 380
430
Maximum Temperature: Mechanical, °C 200
170
Melting Completion (Liquidus), °C 640
600
Melting Onset (Solidus), °C 480
510
Specific Heat Capacity, J/kg-K 870
840
Thermal Conductivity, W/m-K 130
100
Thermal Expansion, µm/m-K 23
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 33
25
Electrical Conductivity: Equal Weight (Specific), % IACS 98
67

Otherwise Unclassified Properties

Base Metal Price, % relative 10
12
Density, g/cm3 3.0
3.4
Embodied Carbon, kg CO2/kg material 8.3
7.4
Embodied Energy, MJ/kg 150
140
Embodied Water, L/kg 1120
1040

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 7.8 to 44
2.9
Resilience: Unit (Modulus of Resilience), kJ/m3 110 to 1870
180
Stiffness to Weight: Axial, points 13
12
Stiffness to Weight: Bending, points 46
42
Strength to Weight: Axial, points 22 to 54
17
Strength to Weight: Bending, points 28 to 52
23
Thermal Diffusivity, mm2/s 50
37
Thermal Shock Resistance, points 10 to 25
9.1

Alloy Composition

Aluminum (Al), % 86.9 to 91.4
81.9 to 84.9
Chromium (Cr), % 0.18 to 0.28
0
Copper (Cu), % 1.2 to 2.0
9.5 to 10.5
Iron (Fe), % 0 to 0.5
1.0 to 1.5
Magnesium (Mg), % 2.1 to 2.9
0 to 0.25
Manganese (Mn), % 0 to 0.3
0
Silicon (Si), % 0 to 0.4
3.6 to 4.4
Titanium (Ti), % 0 to 0.2
0
Zinc (Zn), % 5.1 to 6.1
1.0 to 1.5
Zirconium (Zr), % 0 to 0.25
0
Residuals, % 0 to 0.15
0