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201.0 Aluminum vs. 2218 Aluminum

Both 201.0 aluminum and 2218 aluminum are aluminum alloys. They have a very high 96% of their average alloy composition in common. There are 30 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 201.0 aluminum and the bottom bar is 2218 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 95 to 140
95 to 110
Elastic (Young's, Tensile) Modulus, GPa 71
73
Elongation at Break, % 4.4 to 20
6.8 to 10
Fatigue Strength, MPa 120 to 150
110
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 27
27
Shear Strength, MPa 290
210 to 250
Tensile Strength: Ultimate (UTS), MPa 370 to 470
330 to 430
Tensile Strength: Yield (Proof), MPa 220 to 400
260 to 310

Thermal Properties

Latent Heat of Fusion, J/g 390
390
Maximum Temperature: Mechanical, °C 170
220
Melting Completion (Liquidus), °C 650
640
Melting Onset (Solidus), °C 570
510
Specific Heat Capacity, J/kg-K 870
870
Thermal Conductivity, W/m-K 120
140
Thermal Expansion, µm/m-K 19
22

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 30 to 33
37
Electrical Conductivity: Equal Weight (Specific), % IACS 87 to 97
110

Otherwise Unclassified Properties

Base Metal Price, % relative 38
11
Density, g/cm3 3.1
3.1
Embodied Carbon, kg CO2/kg material 8.7
8.2
Embodied Energy, MJ/kg 160
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 19 to 63
27 to 31
Resilience: Unit (Modulus of Resilience), kJ/m3 330 to 1160
450 to 650
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 45
45
Strength to Weight: Axial, points 33 to 42
30 to 39
Strength to Weight: Bending, points 37 to 44
34 to 41
Thermal Diffusivity, mm2/s 45
52
Thermal Shock Resistance, points 19 to 25
15 to 19

Alloy Composition


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Aluminum (Al), % 92.1 to 95.1
88.8 to 93.6
Chromium (Cr), % 0
0 to 0.1
Copper (Cu), % 4.0 to 5.2
3.5 to 4.5
Iron (Fe), % 0 to 0.15
0 to 1.0
Magnesium (Mg), % 0.15 to 0.55
1.2 to 1.8
Manganese (Mn), % 0.2 to 0.5
0 to 0.2
Nickel (Ni), % 0
1.7 to 2.3
Silicon (Si), % 0 to 0.1
0 to 0.9
Silver (Ag), % 0.4 to 1.0
0
Titanium (Ti), % 0.15 to 0.35
0
Zinc (Zn), % 0
0 to 0.25
Residuals, % 0 to 0.1
0 to 0.15