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AWS E310Mo vs. 8021 Aluminum

AWS E310Mo belongs to the iron alloys classification, while 8021 aluminum belongs to the aluminum alloys. There are 24 material properties with values for both materials. Properties with values for just one material (6, 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 E310Mo and the bottom bar is 8021 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
70
Elongation at Break, % 34
2.3
Poisson's Ratio 0.27
0.33
Shear Modulus, GPa 80
26
Tensile Strength: Ultimate (UTS), MPa 620
160

Thermal Properties

Latent Heat of Fusion, J/g 310
400
Melting Completion (Liquidus), °C 1420
650
Melting Onset (Solidus), °C 1370
640
Specific Heat Capacity, J/kg-K 470
900
Thermal Conductivity, W/m-K 14
220
Thermal Expansion, µm/m-K 14
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
56
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
180

Otherwise Unclassified Properties

Base Metal Price, % relative 28
9.0
Density, g/cm3 7.9
2.8
Embodied Carbon, kg CO2/kg material 5.1
8.1
Embodied Energy, MJ/kg 71
150
Embodied Water, L/kg 210
1180

Common Calculations

Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
49
Strength to Weight: Axial, points 22
16
Strength to Weight: Bending, points 20
23
Thermal Diffusivity, mm2/s 3.7
88
Thermal Shock Resistance, points 15
7.0

Alloy Composition

Aluminum (Al), % 0
98 to 98.8
Carbon (C), % 0 to 0.12
0
Chromium (Cr), % 25 to 28
0
Copper (Cu), % 0 to 0.75
0 to 0.050
Iron (Fe), % 42.8 to 52
1.2 to 1.7
Manganese (Mn), % 1.0 to 2.5
0
Molybdenum (Mo), % 2.0 to 3.0
0
Nickel (Ni), % 20 to 22
0
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0 to 0.75
0 to 0.15
Sulfur (S), % 0 to 0.030
0
Residuals, % 0
0 to 0.15