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384.0 Aluminum vs. 4045 Aluminum

Both 384.0 aluminum and 4045 aluminum are aluminum alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have a moderately high 93% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is 384.0 aluminum and the bottom bar is 4045 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 74
71
Elongation at Break, % 2.5
2.3
Fatigue Strength, MPa 140
45
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 28
27
Shear Strength, MPa 200
69
Tensile Strength: Ultimate (UTS), MPa 330
120
Tensile Strength: Yield (Proof), MPa 170
64

Thermal Properties

Latent Heat of Fusion, J/g 550
540
Maximum Temperature: Mechanical, °C 170
160
Melting Completion (Liquidus), °C 580
600
Melting Onset (Solidus), °C 530
580
Specific Heat Capacity, J/kg-K 870
900
Thermal Conductivity, W/m-K 96
170
Thermal Expansion, µm/m-K 21
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 22
45
Electrical Conductivity: Equal Weight (Specific), % IACS 69
160

Otherwise Unclassified Properties

Base Metal Price, % relative 11
9.5
Density, g/cm3 2.9
2.6
Embodied Carbon, kg CO2/kg material 7.4
7.8
Embodied Energy, MJ/kg 140
150
Embodied Water, L/kg 1010
1070

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 6.9
2.4
Resilience: Unit (Modulus of Resilience), kJ/m3 190
29
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 49
54
Strength to Weight: Axial, points 32
13
Strength to Weight: Bending, points 37
21
Thermal Diffusivity, mm2/s 39
74
Thermal Shock Resistance, points 15
5.7

Alloy Composition


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Aluminum (Al), % 77.3 to 86.5
87.4 to 91
Copper (Cu), % 3.0 to 4.5
0 to 0.3
Iron (Fe), % 0 to 1.3
0 to 0.8
Magnesium (Mg), % 0 to 0.1
0 to 0.050
Manganese (Mn), % 0 to 0.5
0 to 0.050
Nickel (Ni), % 0 to 0.5
0
Silicon (Si), % 10.5 to 12
9.0 to 11
Tin (Sn), % 0 to 0.35
0
Titanium (Ti), % 0
0 to 0.2
Zinc (Zn), % 0 to 3.0
0 to 0.1
Residuals, % 0 to 0.5
0 to 0.15