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6023 Aluminum vs. 5449 Aluminum

Both 6023 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 6023 aluminum and the bottom bar is 5449 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
69
Elongation at Break, % 11
4.0 to 17
Fatigue Strength, MPa 120 to 130
78 to 120
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 26
26
Shear Strength, MPa 210 to 220
130 to 190
Tensile Strength: Ultimate (UTS), MPa 360
210 to 330
Tensile Strength: Yield (Proof), MPa 300 to 310
91 to 260

Thermal Properties

Latent Heat of Fusion, J/g 400
400
Maximum Temperature: Mechanical, °C 160
190
Melting Completion (Liquidus), °C 640
650
Melting Onset (Solidus), °C 580
590
Specific Heat Capacity, J/kg-K 890
900
Thermal Conductivity, W/m-K 170
140
Thermal Expansion, µm/m-K 23
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 45
35
Electrical Conductivity: Equal Weight (Specific), % IACS 140
110

Otherwise Unclassified Properties

Base Metal Price, % relative 11
9.5
Density, g/cm3 2.8
2.8
Embodied Carbon, kg CO2/kg material 8.3
8.5
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1180
1180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 38 to 39
12 to 29
Resilience: Unit (Modulus of Resilience), kJ/m3 670 to 690
60 to 480
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 49
50
Strength to Weight: Axial, points 35 to 36
22 to 33
Strength to Weight: Bending, points 40
29 to 39
Thermal Diffusivity, mm2/s 67
56
Thermal Shock Resistance, points 16
9.4 to 15

Alloy Composition

Aluminum (Al), % 94 to 97.7
94.1 to 97.8
Bismuth (Bi), % 0.3 to 0.8
0
Chromium (Cr), % 0
0 to 0.3
Copper (Cu), % 0.2 to 0.5
0 to 0.3
Iron (Fe), % 0 to 0.5
0 to 0.7
Magnesium (Mg), % 0.4 to 0.9
1.6 to 2.6
Manganese (Mn), % 0.2 to 0.6
0.6 to 1.1
Silicon (Si), % 0.6 to 1.4
0 to 0.4
Tin (Sn), % 0.6 to 1.2
0
Titanium (Ti), % 0
0 to 0.1
Zinc (Zn), % 0
0 to 0.3
Residuals, % 0
0 to 0.15