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328.0 Aluminum vs. 2025 Aluminum

Both 328.0 aluminum and 2025 aluminum are aluminum alloys. They have a moderately high 91% 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 328.0 aluminum and the bottom bar is 2025 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 60 to 82
110
Elastic (Young's, Tensile) Modulus, GPa 72
72
Elongation at Break, % 1.6 to 2.1
15
Fatigue Strength, MPa 55 to 80
130
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 27
27
Tensile Strength: Ultimate (UTS), MPa 200 to 270
400
Tensile Strength: Yield (Proof), MPa 120 to 170
260

Thermal Properties

Latent Heat of Fusion, J/g 510
400
Maximum Temperature: Mechanical, °C 180
190
Melting Completion (Liquidus), °C 620
640
Melting Onset (Solidus), °C 560
520
Specific Heat Capacity, J/kg-K 890
870
Thermal Conductivity, W/m-K 120
150
Thermal Expansion, µm/m-K 22
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 30
40
Electrical Conductivity: Equal Weight (Specific), % IACS 99
120

Otherwise Unclassified Properties

Base Metal Price, % relative 10
10
Density, g/cm3 2.7
3.0
Embodied Carbon, kg CO2/kg material 7.8
7.9
Embodied Energy, MJ/kg 140
150
Embodied Water, L/kg 1070
1130

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.8 to 5.0
55
Resilience: Unit (Modulus of Resilience), kJ/m3 92 to 200
450
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 51
46
Strength to Weight: Axial, points 21 to 28
37
Strength to Weight: Bending, points 28 to 34
40
Thermal Diffusivity, mm2/s 50
58
Thermal Shock Resistance, points 9.2 to 12
18

Alloy Composition


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Aluminum (Al), % 84.5 to 91.1
90.9 to 95.2
Chromium (Cr), % 0 to 0.35
0 to 0.1
Copper (Cu), % 1.0 to 2.0
3.9 to 5.0
Iron (Fe), % 0 to 1.0
0 to 1.0
Magnesium (Mg), % 0.2 to 0.6
0 to 0.050
Manganese (Mn), % 0.2 to 0.6
0.4 to 1.2
Nickel (Ni), % 0 to 0.25
0
Silicon (Si), % 7.5 to 8.5
0.5 to 1.2
Titanium (Ti), % 0 to 0.25
0 to 0.15
Zinc (Zn), % 0 to 1.5
0 to 0.25
Residuals, % 0 to 0.5
0 to 0.15