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328.0 Aluminum vs. 4145 Aluminum

Both 328.0 aluminum and 4145 aluminum are aluminum alloys. They have a very high 96% of their average alloy composition in common. There are 29 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is 328.0 aluminum and the bottom bar is 4145 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 72
73
Elongation at Break, % 1.6 to 2.1
2.2
Fatigue Strength, MPa 55 to 80
48
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 27
28
Tensile Strength: Ultimate (UTS), MPa 200 to 270
120
Tensile Strength: Yield (Proof), MPa 120 to 170
68

Thermal Properties

Latent Heat of Fusion, J/g 510
540
Maximum Temperature: Mechanical, °C 180
160
Melting Completion (Liquidus), °C 620
590
Melting Onset (Solidus), °C 560
520
Specific Heat Capacity, J/kg-K 890
880
Thermal Conductivity, W/m-K 120
100
Thermal Expansion, µm/m-K 22
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 30
26
Electrical Conductivity: Equal Weight (Specific), % IACS 99
84

Otherwise Unclassified Properties

Base Metal Price, % relative 10
10
Density, g/cm3 2.7
2.8
Embodied Carbon, kg CO2/kg material 7.8
7.6
Embodied Energy, MJ/kg 140
140
Embodied Water, L/kg 1070
1040

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.8 to 5.0
2.3
Resilience: Unit (Modulus of Resilience), kJ/m3 92 to 200
31
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 51
50
Strength to Weight: Axial, points 21 to 28
12
Strength to Weight: Bending, points 28 to 34
19
Thermal Diffusivity, mm2/s 50
42
Thermal Shock Resistance, points 9.2 to 12
5.5

Alloy Composition


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Aluminum (Al), % 84.5 to 91.1
83 to 87.4
Chromium (Cr), % 0 to 0.35
0 to 0.15
Copper (Cu), % 1.0 to 2.0
3.3 to 4.7
Iron (Fe), % 0 to 1.0
0 to 0.8
Magnesium (Mg), % 0.2 to 0.6
0 to 0.15
Manganese (Mn), % 0.2 to 0.6
0 to 0.15
Nickel (Ni), % 0 to 0.25
0
Silicon (Si), % 7.5 to 8.5
9.3 to 10.7
Titanium (Ti), % 0 to 0.25
0
Zinc (Zn), % 0 to 1.5
0 to 0.2
Residuals, % 0 to 0.5
0 to 0.15