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5254 Aluminum vs. 5449 Aluminum

Both 5254 aluminum and 5449 aluminum are aluminum alloys. They have a very high 99% of their average alloy composition in common.

For each property being compared, the top bar is 5254 aluminum and the bottom bar is 5449 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 68
69
Elongation at Break, % 3.4 to 22
4.0 to 17
Fatigue Strength, MPa 110 to 160
78 to 120
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 26
26
Shear Strength, MPa 150 to 200
130 to 190
Tensile Strength: Ultimate (UTS), MPa 240 to 350
210 to 330
Tensile Strength: Yield (Proof), MPa 100 to 270
91 to 260

Thermal Properties

Latent Heat of Fusion, J/g 400
400
Maximum Temperature: Mechanical, °C 190
190
Melting Completion (Liquidus), °C 640
650
Melting Onset (Solidus), °C 590
590
Specific Heat Capacity, J/kg-K 900
900
Thermal Conductivity, W/m-K 130
140
Thermal Expansion, µm/m-K 24
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 32
35
Electrical Conductivity: Equal Weight (Specific), % IACS 110
110

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
9.5
Density, g/cm3 2.7
2.8
Embodied Carbon, kg CO2/kg material 8.8
8.5
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1180
1180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 11 to 41
12 to 29
Resilience: Unit (Modulus of Resilience), kJ/m3 73 to 550
60 to 480
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 51
50
Strength to Weight: Axial, points 25 to 37
22 to 33
Strength to Weight: Bending, points 32 to 41
29 to 39
Thermal Diffusivity, mm2/s 52
56
Thermal Shock Resistance, points 10 to 16
9.4 to 15

Alloy Composition

Aluminum (Al), % 94.4 to 96.8
94.1 to 97.8
Chromium (Cr), % 0.15 to 0.35
0 to 0.3
Copper (Cu), % 0 to 0.050
0 to 0.3
Iron (Fe), % 0 to 0.45
0 to 0.7
Magnesium (Mg), % 3.1 to 3.9
1.6 to 2.6
Manganese (Mn), % 0 to 0.010
0.6 to 1.1
Silicon (Si), % 0 to 0.45
0 to 0.4
Titanium (Ti), % 0 to 0.050
0 to 0.1
Zinc (Zn), % 0 to 0.2
0 to 0.3
Residuals, % 0
0 to 0.15

Comparable Variants