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AWS E308H vs. 5254 Aluminum

AWS E308H belongs to the iron alloys classification, while 5254 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 5254 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
68
Elongation at Break, % 40
3.4 to 22
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 77
26
Tensile Strength: Ultimate (UTS), MPa 620
240 to 350

Thermal Properties

Latent Heat of Fusion, J/g 290
400
Melting Completion (Liquidus), °C 1420
640
Melting Onset (Solidus), °C 1380
590
Specific Heat Capacity, J/kg-K 480
900
Thermal Conductivity, W/m-K 16
130
Thermal Expansion, µm/m-K 14
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
32
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
110

Otherwise Unclassified Properties

Base Metal Price, % relative 16
9.5
Density, g/cm3 7.8
2.7
Embodied Carbon, kg CO2/kg material 3.2
8.8
Embodied Energy, MJ/kg 46
150
Embodied Water, L/kg 150
1180

Common Calculations

Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
51
Strength to Weight: Axial, points 22
25 to 37
Strength to Weight: Bending, points 21
32 to 41
Thermal Diffusivity, mm2/s 4.2
52
Thermal Shock Resistance, points 16
10 to 16

Alloy Composition

Aluminum (Al), % 0
94.4 to 96.8
Carbon (C), % 0.040 to 0.080
0
Chromium (Cr), % 18 to 21
0.15 to 0.35
Copper (Cu), % 0 to 0.75
0 to 0.050
Iron (Fe), % 62.9 to 72.5
0 to 0.45
Magnesium (Mg), % 0
3.1 to 3.9
Manganese (Mn), % 0.5 to 2.5
0 to 0.010
Molybdenum (Mo), % 0 to 0.75
0
Nickel (Ni), % 9.0 to 11
0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.0
0 to 0.45
Sulfur (S), % 0 to 0.030
0
Titanium (Ti), % 0
0 to 0.050
Zinc (Zn), % 0
0 to 0.2
Residuals, % 0
0 to 0.15