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AWS ER90S-B9 vs. 1085 Aluminum

AWS ER90S-B9 belongs to the iron alloys classification, while 1085 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 1085 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
68
Elongation at Break, % 18
4.5 to 39
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 75
26
Tensile Strength: Ultimate (UTS), MPa 690
73 to 140
Tensile Strength: Yield (Proof), MPa 470
17 to 120

Thermal Properties

Latent Heat of Fusion, J/g 270
400
Melting Completion (Liquidus), °C 1450
640
Melting Onset (Solidus), °C 1410
640
Specific Heat Capacity, J/kg-K 470
900
Thermal Conductivity, W/m-K 25
230
Thermal Expansion, µm/m-K 13
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.0
61
Electrical Conductivity: Equal Weight (Specific), % IACS 8.1
200

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
160
Embodied Water, L/kg 91
1200

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
4.8 to 21
Resilience: Unit (Modulus of Resilience), kJ/m3 570
2.1 to 110
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
50
Strength to Weight: Axial, points 25
7.5 to 14
Strength to Weight: Bending, points 22
14 to 22
Thermal Diffusivity, mm2/s 6.9
94
Thermal Shock Resistance, points 19
3.3 to 6.1

Alloy Composition

Aluminum (Al), % 0 to 0.040
99.85 to 100
Carbon (C), % 0.070 to 0.13
0
Chromium (Cr), % 8.0 to 10.5
0
Copper (Cu), % 0 to 0.2
0 to 0.030
Gallium (Ga), % 0
0 to 0.030
Iron (Fe), % 84.4 to 90.7
0 to 0.12
Magnesium (Mg), % 0
0 to 0.020
Manganese (Mn), % 0 to 1.2
0 to 0.020
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 to 0.1
Sulfur (S), % 0 to 0.010
0
Titanium (Ti), % 0
0 to 0.020
Vanadium (V), % 0.15 to 0.3
0 to 0.050
Zinc (Zn), % 0
0 to 0.030
Residuals, % 0
0 to 0.010