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2018 Aluminum vs. 328.0 Aluminum

Both 2018 aluminum and 328.0 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 (2, in this case) are not shown.

For each property being compared, the top bar is 2018 aluminum and the bottom bar is 328.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 120
60 to 82
Elastic (Young's, Tensile) Modulus, GPa 73
72
Elongation at Break, % 9.6
1.6 to 2.1
Fatigue Strength, MPa 120
55 to 80
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 27
27
Tensile Strength: Ultimate (UTS), MPa 420
200 to 270
Tensile Strength: Yield (Proof), MPa 310
120 to 170

Thermal Properties

Latent Heat of Fusion, J/g 390
510
Maximum Temperature: Mechanical, °C 220
180
Melting Completion (Liquidus), °C 640
620
Melting Onset (Solidus), °C 510
560
Specific Heat Capacity, J/kg-K 870
890
Thermal Conductivity, W/m-K 150
120
Thermal Expansion, µm/m-K 22
22

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 40
30
Electrical Conductivity: Equal Weight (Specific), % IACS 120
99

Otherwise Unclassified Properties

Base Metal Price, % relative 11
10
Density, g/cm3 3.1
2.7
Embodied Carbon, kg CO2/kg material 8.1
7.8
Embodied Energy, MJ/kg 150
140
Embodied Water, L/kg 1130
1070

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 37
2.8 to 5.0
Resilience: Unit (Modulus of Resilience), kJ/m3 670
92 to 200
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 45
51
Strength to Weight: Axial, points 38
21 to 28
Strength to Weight: Bending, points 41
28 to 34
Thermal Diffusivity, mm2/s 57
50
Thermal Shock Resistance, points 19
9.2 to 12

Alloy Composition


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Aluminum (Al), % 89.7 to 94.4
84.5 to 91.1
Chromium (Cr), % 0 to 0.1
0 to 0.35
Copper (Cu), % 3.5 to 4.5
1.0 to 2.0
Iron (Fe), % 0 to 1.0
0 to 1.0
Magnesium (Mg), % 0.45 to 0.9
0.2 to 0.6
Manganese (Mn), % 0 to 0.2
0.2 to 0.6
Nickel (Ni), % 1.7 to 2.3
0 to 0.25
Silicon (Si), % 0 to 0.9
7.5 to 8.5
Titanium (Ti), % 0
0 to 0.25
Zinc (Zn), % 0 to 0.25
0 to 1.5
Residuals, % 0 to 0.15
0 to 0.5