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AWS ER90S-B9 vs. 6261 Aluminum

AWS ER90S-B9 belongs to the iron alloys classification, while 6261 aluminum belongs to the aluminum alloys. There are 27 material properties with values for both materials. Properties with values for just one material (4, 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 6261 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
69
Elongation at Break, % 18
9.0 to 16
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 75
26
Tensile Strength: Ultimate (UTS), MPa 690
150 to 300
Tensile Strength: Yield (Proof), MPa 470
100 to 260

Thermal Properties

Latent Heat of Fusion, J/g 270
400
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 25
180
Thermal Expansion, µm/m-K 13
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.0
48
Electrical Conductivity: Equal Weight (Specific), % IACS 8.1
160

Otherwise Unclassified Properties

Base Metal Price, % relative 7.0
9.5
Density, g/cm3 7.8
2.7
Embodied Carbon, kg CO2/kg material 2.6
8.3
Embodied Energy, MJ/kg 37
150
Embodied Water, L/kg 91
1180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
21 to 27
Resilience: Unit (Modulus of Resilience), kJ/m3 570
77 to 500
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
50
Strength to Weight: Axial, points 25
15 to 31
Strength to Weight: Bending, points 22
23 to 37
Thermal Diffusivity, mm2/s 6.9
75
Thermal Shock Resistance, points 19
6.5 to 13

Alloy Composition

Aluminum (Al), % 0 to 0.040
96.6 to 98.6
Carbon (C), % 0.070 to 0.13
0
Chromium (Cr), % 8.0 to 10.5
0 to 0.1
Copper (Cu), % 0 to 0.2
0.15 to 0.4
Iron (Fe), % 84.4 to 90.7
0 to 0.4
Magnesium (Mg), % 0
0.7 to 1.0
Manganese (Mn), % 0 to 1.2
0.2 to 0.35
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
0.4 to 0.7
Sulfur (S), % 0 to 0.010
0
Titanium (Ti), % 0
0 to 0.1
Vanadium (V), % 0.15 to 0.3
0
Zinc (Zn), % 0
0 to 0.2
Residuals, % 0
0 to 0.15