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AWS ER90S-B9 vs. 242.0 Aluminum

AWS ER90S-B9 belongs to the iron alloys classification, while 242.0 aluminum belongs to the aluminum alloys. There are 27 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 ER90S-B9 and the bottom bar is 242.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
73
Elongation at Break, % 18
0.5 to 1.5
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 75
27
Tensile Strength: Ultimate (UTS), MPa 690
180 to 290
Tensile Strength: Yield (Proof), MPa 470
120 to 220

Thermal Properties

Latent Heat of Fusion, J/g 270
390
Melting Completion (Liquidus), °C 1450
640
Melting Onset (Solidus), °C 1410
530
Specific Heat Capacity, J/kg-K 470
870
Thermal Conductivity, W/m-K 25
130 to 170
Thermal Expansion, µm/m-K 13
22

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.0
33 to 44
Electrical Conductivity: Equal Weight (Specific), % IACS 8.1
96 to 130

Otherwise Unclassified Properties

Base Metal Price, % relative 7.0
12
Density, g/cm3 7.8
3.1
Embodied Carbon, kg CO2/kg material 2.6
8.3
Embodied Energy, MJ/kg 37
150
Embodied Water, L/kg 91
1130

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
1.3 to 3.4
Resilience: Unit (Modulus of Resilience), kJ/m3 570
110 to 340
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
45
Strength to Weight: Axial, points 25
16 to 26
Strength to Weight: Bending, points 22
23 to 32
Thermal Diffusivity, mm2/s 6.9
50 to 62
Thermal Shock Resistance, points 19
8.0 to 13

Alloy Composition

Aluminum (Al), % 0 to 0.040
88.4 to 93.6
Carbon (C), % 0.070 to 0.13
0
Chromium (Cr), % 8.0 to 10.5
0 to 0.25
Copper (Cu), % 0 to 0.2
3.5 to 4.5
Iron (Fe), % 84.4 to 90.7
0 to 1.0
Magnesium (Mg), % 0
1.2 to 1.8
Manganese (Mn), % 0 to 1.2
0 to 0.35
Molybdenum (Mo), % 0.85 to 1.2
0
Nickel (Ni), % 0 to 0.8
1.7 to 2.3
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 to 0.7
Sulfur (S), % 0 to 0.010
0
Titanium (Ti), % 0
0 to 0.25
Vanadium (V), % 0.15 to 0.3
0
Zinc (Zn), % 0
0 to 0.35
Residuals, % 0
0 to 0.15