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2618 Aluminum vs. 851.0 Aluminum

Both 2618 aluminum and 851.0 aluminum are aluminum alloys. They have a moderately high 91% of their average alloy composition in common. There are 25 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is 2618 aluminum and the bottom bar is 851.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 71
69
Elongation at Break, % 5.8
3.9 to 9.1
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 27
26
Tensile Strength: Ultimate (UTS), MPa 420
130 to 140

Thermal Properties

Latent Heat of Fusion, J/g 390
410
Maximum Temperature: Mechanical, °C 210
180
Melting Completion (Liquidus), °C 640
630
Melting Onset (Solidus), °C 550
360
Specific Heat Capacity, J/kg-K 880
850
Thermal Conductivity, W/m-K 160
180
Thermal Expansion, µm/m-K 22
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 37
46
Electrical Conductivity: Equal Weight (Specific), % IACS 110
140

Otherwise Unclassified Properties

Base Metal Price, % relative 11
14
Density, g/cm3 2.9
3.1
Embodied Carbon, kg CO2/kg material 8.3
8.4
Embodied Energy, MJ/kg 150
160
Embodied Water, L/kg 1150
1140

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 47
45
Strength to Weight: Axial, points 40
12 to 13
Strength to Weight: Bending, points 42
19 to 20
Thermal Diffusivity, mm2/s 62
69
Thermal Shock Resistance, points 19
6.1 to 6.3

Alloy Composition

Aluminum (Al), % 92.4 to 94.9
86.6 to 91.5
Copper (Cu), % 1.9 to 2.7
0.7 to 1.3
Iron (Fe), % 0.9 to 1.3
0 to 0.7
Magnesium (Mg), % 1.3 to 1.8
0 to 0.1
Manganese (Mn), % 0
0 to 0.1
Nickel (Ni), % 0.9 to 1.2
0.3 to 0.7
Silicon (Si), % 0.1 to 0.25
2.0 to 3.0
Tin (Sn), % 0
5.5 to 7.0
Titanium (Ti), % 0.040 to 0.1
0 to 0.2
Zinc (Zn), % 0 to 0.1
0
Residuals, % 0
0 to 0.3