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5254 Aluminum vs. 2018 Aluminum

Both 5254 aluminum and 2018 aluminum are aluminum alloys. They have a moderately high 93% 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 5254 aluminum and the bottom bar is 2018 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 68
73
Elongation at Break, % 3.4 to 22
9.6
Fatigue Strength, MPa 110 to 160
120
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 26
27
Shear Strength, MPa 150 to 200
270
Tensile Strength: Ultimate (UTS), MPa 240 to 350
420
Tensile Strength: Yield (Proof), MPa 100 to 270
310

Thermal Properties

Latent Heat of Fusion, J/g 400
390
Maximum Temperature: Mechanical, °C 190
220
Melting Completion (Liquidus), °C 640
640
Melting Onset (Solidus), °C 590
510
Specific Heat Capacity, J/kg-K 900
870
Thermal Conductivity, W/m-K 130
150
Thermal Expansion, µm/m-K 24
22

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 32
40
Electrical Conductivity: Equal Weight (Specific), % IACS 110
120

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
11
Density, g/cm3 2.7
3.1
Embodied Carbon, kg CO2/kg material 8.8
8.1
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1180
1130

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 11 to 41
37
Resilience: Unit (Modulus of Resilience), kJ/m3 73 to 550
670
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 51
45
Strength to Weight: Axial, points 25 to 37
38
Strength to Weight: Bending, points 32 to 41
41
Thermal Diffusivity, mm2/s 52
57
Thermal Shock Resistance, points 10 to 16
19

Alloy Composition

Aluminum (Al), % 94.4 to 96.8
89.7 to 94.4
Chromium (Cr), % 0.15 to 0.35
0 to 0.1
Copper (Cu), % 0 to 0.050
3.5 to 4.5
Iron (Fe), % 0 to 0.45
0 to 1.0
Magnesium (Mg), % 3.1 to 3.9
0.45 to 0.9
Manganese (Mn), % 0 to 0.010
0 to 0.2
Nickel (Ni), % 0
1.7 to 2.3
Silicon (Si), % 0 to 0.45
0 to 0.9
Titanium (Ti), % 0 to 0.050
0
Zinc (Zn), % 0 to 0.2
0 to 0.25
Residuals, % 0
0 to 0.15