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AWS E409Nb vs. 238.0 Aluminum

AWS E409Nb belongs to the iron alloys classification, while 238.0 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 E409Nb and the bottom bar is 238.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
76
Elongation at Break, % 23
1.5
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 76
28
Tensile Strength: Ultimate (UTS), MPa 500
210
Tensile Strength: Yield (Proof), MPa 380
170

Thermal Properties

Latent Heat of Fusion, J/g 280
430
Melting Completion (Liquidus), °C 1460
600
Melting Onset (Solidus), °C 1410
510
Specific Heat Capacity, J/kg-K 480
840
Thermal Conductivity, W/m-K 25
100
Thermal Expansion, µm/m-K 14
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
25
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
67

Otherwise Unclassified Properties

Base Metal Price, % relative 13
12
Density, g/cm3 7.8
3.4
Embodied Carbon, kg CO2/kg material 2.9
7.4
Embodied Energy, MJ/kg 42
140
Embodied Water, L/kg 100
1040

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
2.9
Resilience: Unit (Modulus of Resilience), kJ/m3 380
180
Stiffness to Weight: Axial, points 14
12
Stiffness to Weight: Bending, points 25
42
Strength to Weight: Axial, points 18
17
Strength to Weight: Bending, points 18
23
Thermal Diffusivity, mm2/s 6.8
37
Thermal Shock Resistance, points 14
9.1

Alloy Composition

Aluminum (Al), % 0
81.9 to 84.9
Carbon (C), % 0 to 0.12
0
Chromium (Cr), % 11 to 14
0
Copper (Cu), % 0 to 0.75
9.5 to 10.5
Iron (Fe), % 80.2 to 88.5
1.0 to 1.5
Magnesium (Mg), % 0
0 to 0.25
Manganese (Mn), % 0 to 1.0
0
Molybdenum (Mo), % 0 to 0.75
0
Nickel (Ni), % 0 to 0.6
0
Niobium (Nb), % 0.5 to 1.5
0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.0
3.6 to 4.4
Sulfur (S), % 0 to 0.030
0
Zinc (Zn), % 0
1.0 to 1.5