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AWS ER90S-B9 vs. 4115 Aluminum

AWS ER90S-B9 belongs to the iron alloys classification, while 4115 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 4115 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
70
Elongation at Break, % 18
1.1 to 11
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 75
26
Tensile Strength: Ultimate (UTS), MPa 690
120 to 220
Tensile Strength: Yield (Proof), MPa 470
39 to 190

Thermal Properties

Latent Heat of Fusion, J/g 270
420
Melting Completion (Liquidus), °C 1450
640
Melting Onset (Solidus), °C 1410
590
Specific Heat Capacity, J/kg-K 470
900
Thermal Conductivity, W/m-K 25
160
Thermal Expansion, µm/m-K 13
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.0
41
Electrical Conductivity: Equal Weight (Specific), % IACS 8.1
140

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
8.1
Embodied Energy, MJ/kg 37
150
Embodied Water, L/kg 91
1160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
2.1 to 10
Resilience: Unit (Modulus of Resilience), kJ/m3 570
11 to 270
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
50
Strength to Weight: Axial, points 25
12 to 23
Strength to Weight: Bending, points 22
20 to 30
Thermal Diffusivity, mm2/s 6.9
66
Thermal Shock Resistance, points 19
5.2 to 9.9

Alloy Composition

Aluminum (Al), % 0 to 0.040
94.6 to 97.4
Carbon (C), % 0.070 to 0.13
0
Chromium (Cr), % 8.0 to 10.5
0
Copper (Cu), % 0 to 0.2
0.1 to 0.5
Iron (Fe), % 84.4 to 90.7
0 to 0.7
Magnesium (Mg), % 0
0.1 to 0.5
Manganese (Mn), % 0 to 1.2
0.6 to 1.2
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
1.8 to 2.2
Sulfur (S), % 0 to 0.010
0
Vanadium (V), % 0.15 to 0.3
0
Zinc (Zn), % 0
0 to 0.2
Residuals, % 0
0 to 0.15