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3105 Aluminum vs. AWS ER90S-B3

3105 aluminum belongs to the aluminum alloys classification, while AWS ER90S-B3 belongs to the iron alloys. There are 27 material properties with values for both materials. Properties with values for just one material (6, 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 3105 aluminum and the bottom bar is AWS ER90S-B3.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
190
Elongation at Break, % 1.1 to 20
19
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 26
73
Tensile Strength: Ultimate (UTS), MPa 120 to 240
690
Tensile Strength: Yield (Proof), MPa 46 to 220
620

Thermal Properties

Latent Heat of Fusion, J/g 400
260
Melting Completion (Liquidus), °C 660
1460
Melting Onset (Solidus), °C 640
1420
Specific Heat Capacity, J/kg-K 900
470
Thermal Conductivity, W/m-K 170
40
Thermal Expansion, µm/m-K 24
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 44
7.7
Electrical Conductivity: Equal Weight (Specific), % IACS 140
8.9

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
4.1
Density, g/cm3 2.8
7.8
Embodied Carbon, kg CO2/kg material 8.2
1.8
Embodied Energy, MJ/kg 150
24
Embodied Water, L/kg 1180
60

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.6 to 19
130
Resilience: Unit (Modulus of Resilience), kJ/m3 15 to 340
1000
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 50
24
Strength to Weight: Axial, points 12 to 24
25
Strength to Weight: Bending, points 20 to 31
22
Thermal Diffusivity, mm2/s 68
11
Thermal Shock Resistance, points 5.2 to 11
20

Alloy Composition

Aluminum (Al), % 96 to 99.5
0
Carbon (C), % 0
0.070 to 0.12
Chromium (Cr), % 0 to 0.2
2.3 to 2.7
Copper (Cu), % 0 to 0.3
0 to 0.35
Iron (Fe), % 0 to 0.7
93.5 to 95.9
Magnesium (Mg), % 0.2 to 0.8
0
Manganese (Mn), % 0.3 to 0.8
0.4 to 0.7
Molybdenum (Mo), % 0
0.9 to 1.2
Nickel (Ni), % 0
0 to 0.2
Phosphorus (P), % 0
0 to 0.025
Silicon (Si), % 0 to 0.6
0.4 to 0.7
Sulfur (S), % 0
0 to 0.025
Titanium (Ti), % 0 to 0.1
0
Zinc (Zn), % 0 to 0.4
0
Residuals, % 0
0 to 0.5