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204.0 Aluminum vs. AWS ER90S-B9

204.0 aluminum belongs to the aluminum alloys classification, while AWS ER90S-B9 belongs to the iron 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 204.0 aluminum and the bottom bar is AWS ER90S-B9.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 71
190
Elongation at Break, % 5.7 to 7.8
18
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 27
75
Tensile Strength: Ultimate (UTS), MPa 230 to 340
690
Tensile Strength: Yield (Proof), MPa 180 to 220
470

Thermal Properties

Latent Heat of Fusion, J/g 390
270
Melting Completion (Liquidus), °C 650
1450
Melting Onset (Solidus), °C 580
1410
Specific Heat Capacity, J/kg-K 880
470
Thermal Conductivity, W/m-K 120
25
Thermal Expansion, µm/m-K 19
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 29 to 34
7.0
Electrical Conductivity: Equal Weight (Specific), % IACS 87 to 100
8.1

Otherwise Unclassified Properties

Base Metal Price, % relative 11
7.0
Density, g/cm3 3.0
7.8
Embodied Carbon, kg CO2/kg material 8.0
2.6
Embodied Energy, MJ/kg 150
37
Embodied Water, L/kg 1150
91

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 12 to 23
110
Resilience: Unit (Modulus of Resilience), kJ/m3 220 to 350
570
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 46
25
Strength to Weight: Axial, points 21 to 31
25
Strength to Weight: Bending, points 28 to 36
22
Thermal Diffusivity, mm2/s 46
6.9
Thermal Shock Resistance, points 12 to 18
19

Alloy Composition

Aluminum (Al), % 93.4 to 95.5
0 to 0.040
Carbon (C), % 0
0.070 to 0.13
Chromium (Cr), % 0
8.0 to 10.5
Copper (Cu), % 4.2 to 5.0
0 to 0.2
Iron (Fe), % 0 to 0.35
84.4 to 90.7
Magnesium (Mg), % 0.15 to 0.35
0
Manganese (Mn), % 0 to 0.1
0 to 1.2
Molybdenum (Mo), % 0
0.85 to 1.2
Nickel (Ni), % 0 to 0.050
0 to 0.8
Niobium (Nb), % 0
0.020 to 0.1
Nitrogen (N), % 0
0.030 to 0.070
Phosphorus (P), % 0
0 to 0.010
Silicon (Si), % 0 to 0.2
0.15 to 0.5
Sulfur (S), % 0
0 to 0.010
Tin (Sn), % 0 to 0.050
0
Titanium (Ti), % 0.15 to 0.3
0
Vanadium (V), % 0
0.15 to 0.3
Zinc (Zn), % 0 to 0.1
0
Residuals, % 0
0 to 0.5