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2218 Aluminum vs. 319.0 Aluminum

Both 2218 aluminum and 319.0 aluminum are aluminum alloys. They have a moderately high 94% of their average alloy composition in common. There are 31 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 2218 aluminum and the bottom bar is 319.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 95 to 110
78 to 84
Elastic (Young's, Tensile) Modulus, GPa 73
72
Elongation at Break, % 6.8 to 10
1.8 to 2.0
Fatigue Strength, MPa 110
76 to 80
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 27
27
Shear Strength, MPa 210 to 250
170 to 210
Tensile Strength: Ultimate (UTS), MPa 330 to 430
190 to 240
Tensile Strength: Yield (Proof), MPa 260 to 310
110 to 180

Thermal Properties

Latent Heat of Fusion, J/g 390
480
Maximum Temperature: Mechanical, °C 220
170
Melting Completion (Liquidus), °C 640
600
Melting Onset (Solidus), °C 510
540
Specific Heat Capacity, J/kg-K 870
880
Thermal Conductivity, W/m-K 140
110
Thermal Expansion, µm/m-K 22
22

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 37
27
Electrical Conductivity: Equal Weight (Specific), % IACS 110
84

Otherwise Unclassified Properties

Base Metal Price, % relative 11
10
Density, g/cm3 3.1
2.9
Embodied Carbon, kg CO2/kg material 8.2
7.7
Embodied Energy, MJ/kg 150
140
Embodied Water, L/kg 1130
1080

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 27 to 31
3.3 to 3.9
Resilience: Unit (Modulus of Resilience), kJ/m3 450 to 650
88 to 220
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 45
48
Strength to Weight: Axial, points 30 to 39
18 to 24
Strength to Weight: Bending, points 34 to 41
25 to 30
Thermal Diffusivity, mm2/s 52
44
Thermal Shock Resistance, points 15 to 19
8.6 to 11

Alloy Composition

Aluminum (Al), % 88.8 to 93.6
85.8 to 91.5
Chromium (Cr), % 0 to 0.1
0
Copper (Cu), % 3.5 to 4.5
3.0 to 4.0
Iron (Fe), % 0 to 1.0
0 to 1.0
Magnesium (Mg), % 1.2 to 1.8
0 to 0.1
Manganese (Mn), % 0 to 0.2
0 to 0.5
Nickel (Ni), % 1.7 to 2.3
0 to 0.35
Silicon (Si), % 0 to 0.9
5.5 to 6.5
Titanium (Ti), % 0
0 to 0.25
Zinc (Zn), % 0 to 0.25
0 to 1.0
Residuals, % 0
0 to 0.5