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5454 Aluminum vs. 2018 Aluminum

Both 5454 aluminum and 2018 aluminum are aluminum alloys. They have a moderately high 93% of their average alloy composition in common.

For each property being compared, the top bar is 5454 aluminum and the bottom bar is 2018 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 61 to 93
120
Elastic (Young's, Tensile) Modulus, GPa 69
73
Elongation at Break, % 2.3 to 18
9.6
Fatigue Strength, MPa 83 to 160
120
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 26
27
Shear Strength, MPa 140 to 200
270
Tensile Strength: Ultimate (UTS), MPa 230 to 350
420
Tensile Strength: Yield (Proof), MPa 97 to 290
310

Thermal Properties

Latent Heat of Fusion, J/g 400
390
Maximum Temperature: Mechanical, °C 190
220
Melting Completion (Liquidus), °C 650
640
Melting Onset (Solidus), °C 600
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 34
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 8.6
8.1
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1180
1130

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 6.3 to 34
37
Resilience: Unit (Modulus of Resilience), kJ/m3 68 to 590
670
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 50
45
Strength to Weight: Axial, points 23 to 36
38
Strength to Weight: Bending, points 30 to 41
41
Thermal Diffusivity, mm2/s 55
57
Thermal Shock Resistance, points 10 to 16
19

Alloy Composition

Aluminum (Al), % 94.5 to 97.1
89.7 to 94.4
Chromium (Cr), % 0.050 to 0.2
0 to 0.1
Copper (Cu), % 0 to 0.1
3.5 to 4.5
Iron (Fe), % 0 to 0.4
0 to 1.0
Magnesium (Mg), % 2.4 to 3.0
0.45 to 0.9
Manganese (Mn), % 0.5 to 1.0
0 to 0.2
Nickel (Ni), % 0
1.7 to 2.3
Silicon (Si), % 0 to 0.25
0 to 0.9
Titanium (Ti), % 0 to 0.2
0
Zinc (Zn), % 0 to 0.25
0 to 0.25
Residuals, % 0
0 to 0.15