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5082 Aluminum vs. 5449 Aluminum

Both 5082 aluminum and 5449 aluminum are aluminum alloys. They have a very high 98% of their average alloy composition in common.

For each property being compared, the top bar is 5082 aluminum and the bottom bar is 5449 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 67
69
Elongation at Break, % 1.1
4.0 to 17
Fatigue Strength, MPa 110 to 130
78 to 120
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 25
26
Shear Strength, MPa 210 to 230
130 to 190
Tensile Strength: Ultimate (UTS), MPa 380 to 400
210 to 330
Tensile Strength: Yield (Proof), MPa 300 to 340
91 to 260

Thermal Properties

Latent Heat of Fusion, J/g 400
400
Maximum Temperature: Mechanical, °C 180
190
Melting Completion (Liquidus), °C 640
650
Melting Onset (Solidus), °C 560
590
Specific Heat Capacity, J/kg-K 910
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 8.9
8.5
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1180
1180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 4.0 to 4.3
12 to 29
Resilience: Unit (Modulus of Resilience), kJ/m3 670 to 870
60 to 480
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 51
50
Strength to Weight: Axial, points 39 to 41
22 to 33
Strength to Weight: Bending, points 43 to 45
29 to 39
Thermal Diffusivity, mm2/s 54
56
Thermal Shock Resistance, points 17 to 18
9.4 to 15

Alloy Composition

Aluminum (Al), % 93.5 to 96
94.1 to 97.8
Chromium (Cr), % 0 to 0.15
0 to 0.3
Copper (Cu), % 0 to 0.15
0 to 0.3
Iron (Fe), % 0 to 0.35
0 to 0.7
Magnesium (Mg), % 4.0 to 5.0
1.6 to 2.6
Manganese (Mn), % 0 to 0.15
0.6 to 1.1
Silicon (Si), % 0 to 0.2
0 to 0.4
Titanium (Ti), % 0 to 0.1
0 to 0.1
Zinc (Zn), % 0 to 0.25
0 to 0.3
Residuals, % 0
0 to 0.15