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AWS ER90S-D2 vs. 6081 Aluminum

AWS ER90S-D2 belongs to the iron alloys classification, while 6081 aluminum belongs to the aluminum alloys. There are 27 material properties with values for both materials. Properties with values for just one material (3, 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 ER90S-D2 and the bottom bar is 6081 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
69
Elongation at Break, % 19
9.0
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 73
26
Tensile Strength: Ultimate (UTS), MPa 710
310
Tensile Strength: Yield (Proof), MPa 600
270

Thermal Properties

Latent Heat of Fusion, J/g 260
410
Melting Completion (Liquidus), °C 1450
640
Melting Onset (Solidus), °C 1410
610
Specific Heat Capacity, J/kg-K 470
900
Thermal Conductivity, W/m-K 47
180
Thermal Expansion, µm/m-K 13
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4
47
Electrical Conductivity: Equal Weight (Specific), % IACS 8.5
160

Otherwise Unclassified Properties

Base Metal Price, % relative 2.6
9.5
Density, g/cm3 7.8
2.7
Embodied Carbon, kg CO2/kg material 1.6
8.3
Embodied Energy, MJ/kg 21
150
Embodied Water, L/kg 50
1180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
27
Resilience: Unit (Modulus of Resilience), kJ/m3 980
540
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
50
Strength to Weight: Axial, points 25
32
Strength to Weight: Bending, points 23
37
Thermal Diffusivity, mm2/s 13
74
Thermal Shock Resistance, points 21
14

Alloy Composition

Aluminum (Al), % 0
96.3 to 98.6
Carbon (C), % 0.070 to 0.12
0
Chromium (Cr), % 0
0 to 0.1
Copper (Cu), % 0 to 0.5
0 to 0.1
Iron (Fe), % 95.2 to 97.4
0 to 0.5
Magnesium (Mg), % 0
0.6 to 1.0
Manganese (Mn), % 1.6 to 2.1
0.1 to 0.45
Molybdenum (Mo), % 0.4 to 0.6
0
Nickel (Ni), % 0 to 0.15
0
Phosphorus (P), % 0 to 0.025
0
Silicon (Si), % 0.5 to 0.8
0.7 to 1.1
Sulfur (S), % 0 to 0.025
0
Titanium (Ti), % 0
0 to 0.15
Zinc (Zn), % 0
0 to 0.2
Residuals, % 0
0 to 0.15