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5042 Aluminum vs. 5449 Aluminum

Both 5042 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 5042 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, % 1.1 to 3.4
4.0 to 17
Fatigue Strength, MPa 97 to 120
78 to 120
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 26
26
Shear Strength, MPa 200
130 to 190
Tensile Strength: Ultimate (UTS), MPa 340 to 360
210 to 330
Tensile Strength: Yield (Proof), MPa 270 to 310
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 570
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 33
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 3.6 to 12
12 to 29
Resilience: Unit (Modulus of Resilience), kJ/m3 550 to 720
60 to 480
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 50
50
Strength to Weight: Axial, points 35 to 37
22 to 33
Strength to Weight: Bending, points 40 to 42
29 to 39
Thermal Diffusivity, mm2/s 53
56
Thermal Shock Resistance, points 15 to 16
9.4 to 15

Alloy Composition

Aluminum (Al), % 94.2 to 96.8
94.1 to 97.8
Chromium (Cr), % 0 to 0.1
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), % 3.0 to 4.0
1.6 to 2.6
Manganese (Mn), % 0.2 to 0.5
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