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7075 Aluminum vs. 2025 Aluminum

Both 7075 aluminum and 2025 aluminum are aluminum alloys. They have a moderately high 92% of their average alloy composition in common. There are 30 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 2025 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
72
Elongation at Break, % 1.8 to 12
15
Fatigue Strength, MPa 110 to 190
130
Poisson's Ratio 0.32
0.33
Shear Modulus, GPa 26
27
Shear Strength, MPa 150 to 340
240
Tensile Strength: Ultimate (UTS), MPa 240 to 590
400
Tensile Strength: Yield (Proof), MPa 120 to 510
260

Thermal Properties

Latent Heat of Fusion, J/g 380
400
Maximum Temperature: Mechanical, °C 200
190
Melting Completion (Liquidus), °C 640
640
Melting Onset (Solidus), °C 480
520
Specific Heat Capacity, J/kg-K 870
870
Thermal Conductivity, W/m-K 130
150
Thermal Expansion, µm/m-K 23
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 33
40
Electrical Conductivity: Equal Weight (Specific), % IACS 98
120

Otherwise Unclassified Properties

Base Metal Price, % relative 10
10
Density, g/cm3 3.0
3.0
Embodied Carbon, kg CO2/kg material 8.3
7.9
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1120
1130

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 7.8 to 44
55
Resilience: Unit (Modulus of Resilience), kJ/m3 110 to 1870
450
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 46
46
Strength to Weight: Axial, points 22 to 54
37
Strength to Weight: Bending, points 28 to 52
40
Thermal Diffusivity, mm2/s 50
58
Thermal Shock Resistance, points 10 to 25
18

Alloy Composition

Aluminum (Al), % 86.9 to 91.4
90.9 to 95.2
Chromium (Cr), % 0.18 to 0.28
0 to 0.1
Copper (Cu), % 1.2 to 2.0
3.9 to 5.0
Iron (Fe), % 0 to 0.5
0 to 1.0
Magnesium (Mg), % 2.1 to 2.9
0 to 0.050
Manganese (Mn), % 0 to 0.3
0.4 to 1.2
Silicon (Si), % 0 to 0.4
0.5 to 1.2
Titanium (Ti), % 0 to 0.2
0 to 0.15
Zinc (Zn), % 5.1 to 6.1
0 to 0.25
Zirconium (Zr), % 0 to 0.25
0
Residuals, % 0
0 to 0.15