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AWS ER90S-B9 vs. 4006 Aluminum

AWS ER90S-B9 belongs to the iron alloys classification, while 4006 aluminum belongs to the aluminum alloys. There are 27 material properties with values for both materials. Properties with values for just one material (5, 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-B9 and the bottom bar is 4006 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
69
Elongation at Break, % 18
3.4 to 24
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 75
26
Tensile Strength: Ultimate (UTS), MPa 690
110 to 160
Tensile Strength: Yield (Proof), MPa 470
62 to 140

Thermal Properties

Latent Heat of Fusion, J/g 270
410
Melting Completion (Liquidus), °C 1450
640
Melting Onset (Solidus), °C 1410
620
Specific Heat Capacity, J/kg-K 470
900
Thermal Conductivity, W/m-K 25
220
Thermal Expansion, µm/m-K 13
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.0
56
Electrical Conductivity: Equal Weight (Specific), % IACS 8.1
180

Otherwise Unclassified Properties

Base Metal Price, % relative 7.0
9.0
Density, g/cm3 7.8
2.7
Embodied Carbon, kg CO2/kg material 2.6
8.1
Embodied Energy, MJ/kg 37
150
Embodied Water, L/kg 91
1180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
5.1 to 26
Resilience: Unit (Modulus of Resilience), kJ/m3 570
28 to 130
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
50
Strength to Weight: Axial, points 25
11 to 16
Strength to Weight: Bending, points 22
19 to 24
Thermal Diffusivity, mm2/s 6.9
89
Thermal Shock Resistance, points 19
4.9 to 7.0

Alloy Composition

Aluminum (Al), % 0 to 0.040
97.4 to 98.7
Carbon (C), % 0.070 to 0.13
0
Chromium (Cr), % 8.0 to 10.5
0 to 0.2
Copper (Cu), % 0 to 0.2
0 to 0.1
Iron (Fe), % 84.4 to 90.7
0.5 to 0.8
Magnesium (Mg), % 0
0 to 0.010
Manganese (Mn), % 0 to 1.2
0 to 0.050
Molybdenum (Mo), % 0.85 to 1.2
0
Nickel (Ni), % 0 to 0.8
0
Niobium (Nb), % 0.020 to 0.1
0
Nitrogen (N), % 0.030 to 0.070
0
Phosphorus (P), % 0 to 0.010
0
Silicon (Si), % 0.15 to 0.5
0.8 to 1.2
Sulfur (S), % 0 to 0.010
0
Vanadium (V), % 0.15 to 0.3
0
Zinc (Zn), % 0
0 to 0.050
Residuals, % 0
0 to 0.15