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2618A Aluminum vs. 2025 Aluminum

Both 2618A aluminum and 2025 aluminum are aluminum alloys. They have a very high 96% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is 2618A aluminum and the bottom bar is 2025 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 72
72
Elongation at Break, % 4.5
15
Fatigue Strength, MPa 120
130
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 27
27
Shear Strength, MPa 260
240
Tensile Strength: Ultimate (UTS), MPa 440
400
Tensile Strength: Yield (Proof), MPa 410
260

Thermal Properties

Latent Heat of Fusion, J/g 390
400
Maximum Temperature: Mechanical, °C 230
190
Melting Completion (Liquidus), °C 670
640
Melting Onset (Solidus), °C 560
520
Specific Heat Capacity, J/kg-K 880
870
Thermal Conductivity, W/m-K 150
150
Thermal Expansion, µm/m-K 23
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 37
40
Electrical Conductivity: Equal Weight (Specific), % IACS 110
120

Otherwise Unclassified Properties

Base Metal Price, % relative 11
10
Density, g/cm3 3.0
3.0
Embodied Carbon, kg CO2/kg material 8.4
7.9
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1150
1130

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 19
55
Resilience: Unit (Modulus of Resilience), kJ/m3 1180
450
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 47
46
Strength to Weight: Axial, points 41
37
Strength to Weight: Bending, points 44
40
Thermal Diffusivity, mm2/s 59
58
Thermal Shock Resistance, points 19
18

Alloy Composition

Aluminum (Al), % 91.5 to 95.2
90.9 to 95.2
Chromium (Cr), % 0
0 to 0.1
Copper (Cu), % 1.8 to 2.7
3.9 to 5.0
Iron (Fe), % 0.9 to 1.4
0 to 1.0
Magnesium (Mg), % 1.2 to 1.8
0 to 0.050
Manganese (Mn), % 0 to 0.25
0.4 to 1.2
Nickel (Ni), % 0.8 to 1.4
0
Silicon (Si), % 0.15 to 0.25
0.5 to 1.2
Titanium (Ti), % 0 to 0.2
0 to 0.15
Zinc (Zn), % 0 to 0.15
0 to 0.25
Zirconium (Zr), % 0 to 0.25
0
Residuals, % 0
0 to 0.15