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6023 Aluminum vs. 4045 Aluminum

Both 6023 aluminum and 4045 aluminum are aluminum alloys. They have a moderately high 91% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is 6023 aluminum and the bottom bar is 4045 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
71
Elongation at Break, % 11
2.3
Fatigue Strength, MPa 120 to 130
45
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 26
27
Shear Strength, MPa 210 to 220
69
Tensile Strength: Ultimate (UTS), MPa 360
120
Tensile Strength: Yield (Proof), MPa 300 to 310
64

Thermal Properties

Latent Heat of Fusion, J/g 400
540
Maximum Temperature: Mechanical, °C 160
160
Melting Completion (Liquidus), °C 640
600
Melting Onset (Solidus), °C 580
580
Specific Heat Capacity, J/kg-K 890
900
Thermal Conductivity, W/m-K 170
170
Thermal Expansion, µm/m-K 23
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 45
45
Electrical Conductivity: Equal Weight (Specific), % IACS 140
160

Otherwise Unclassified Properties

Base Metal Price, % relative 11
9.5
Density, g/cm3 2.8
2.6
Embodied Carbon, kg CO2/kg material 8.3
7.8
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1180
1070

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 38 to 39
2.4
Resilience: Unit (Modulus of Resilience), kJ/m3 670 to 690
29
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 49
54
Strength to Weight: Axial, points 35 to 36
13
Strength to Weight: Bending, points 40
21
Thermal Diffusivity, mm2/s 67
74
Thermal Shock Resistance, points 16
5.7

Alloy Composition


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Aluminum (Al), % 94 to 97.7
87.4 to 91
Bismuth (Bi), % 0.3 to 0.8
0
Copper (Cu), % 0.2 to 0.5
0 to 0.3
Iron (Fe), % 0 to 0.5
0 to 0.8
Magnesium (Mg), % 0.4 to 0.9
0 to 0.050
Manganese (Mn), % 0.2 to 0.6
0 to 0.050
Silicon (Si), % 0.6 to 1.4
9.0 to 11
Tin (Sn), % 0.6 to 1.2
0
Titanium (Ti), % 0
0 to 0.2
Zinc (Zn), % 0
0 to 0.1
Residuals, % 0 to 0.15
0 to 0.15