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AWS E308H vs. 2618A Aluminum

AWS E308H belongs to the iron alloys classification, while 2618A aluminum belongs to the aluminum alloys. There are 24 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown. Please note that the two materials have significantly dissimilar densities. This means that additional care is required when interpreting the data, because some material properties are based on units of mass, while others are based on units of area or volume.

For each property being compared, the top bar is AWS E308H and the bottom bar is 2618A aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
72
Elongation at Break, % 40
4.5
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 77
27
Tensile Strength: Ultimate (UTS), MPa 620
440

Thermal Properties

Latent Heat of Fusion, J/g 290
390
Melting Completion (Liquidus), °C 1420
670
Melting Onset (Solidus), °C 1380
560
Specific Heat Capacity, J/kg-K 480
880
Thermal Conductivity, W/m-K 16
150
Thermal Expansion, µm/m-K 14
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
37
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
110

Otherwise Unclassified Properties

Base Metal Price, % relative 16
11
Density, g/cm3 7.8
3.0
Embodied Carbon, kg CO2/kg material 3.2
8.4
Embodied Energy, MJ/kg 46
150
Embodied Water, L/kg 150
1150

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
47
Strength to Weight: Axial, points 22
41
Strength to Weight: Bending, points 21
44
Thermal Diffusivity, mm2/s 4.2
59
Thermal Shock Resistance, points 16
19

Alloy Composition

Aluminum (Al), % 0
91.5 to 95.2
Carbon (C), % 0.040 to 0.080
0
Chromium (Cr), % 18 to 21
0
Copper (Cu), % 0 to 0.75
1.8 to 2.7
Iron (Fe), % 62.9 to 72.5
0.9 to 1.4
Magnesium (Mg), % 0
1.2 to 1.8
Manganese (Mn), % 0.5 to 2.5
0 to 0.25
Molybdenum (Mo), % 0 to 0.75
0
Nickel (Ni), % 9.0 to 11
0.8 to 1.4
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.0
0.15 to 0.25
Sulfur (S), % 0 to 0.030
0
Titanium (Ti), % 0
0 to 0.2
Zinc (Zn), % 0
0 to 0.15
Zirconium (Zr), % 0
0 to 0.25
Residuals, % 0
0 to 0.15