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EN AC-71100 Aluminum vs. AWS E80C-B8

EN AC-71100 aluminum belongs to the aluminum alloys classification, while AWS E80C-B8 belongs to the iron alloys. There are 25 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 EN AC-71100 aluminum and the bottom bar is AWS E80C-B8.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 72
190
Elongation at Break, % 1.1
19
Poisson's Ratio 0.32
0.28
Shear Modulus, GPa 27
75
Tensile Strength: Ultimate (UTS), MPa 260
620
Tensile Strength: Yield (Proof), MPa 230
540

Thermal Properties

Latent Heat of Fusion, J/g 490
270
Melting Completion (Liquidus), °C 580
1450
Melting Onset (Solidus), °C 520
1410
Specific Heat Capacity, J/kg-K 860
470
Thermal Expansion, µm/m-K 22
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 32
9.1
Electrical Conductivity: Equal Weight (Specific), % IACS 97
11

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
6.5
Density, g/cm3 2.9
7.8
Embodied Carbon, kg CO2/kg material 7.4
2.1
Embodied Energy, MJ/kg 140
28
Embodied Water, L/kg 1010
89

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.8
110
Resilience: Unit (Modulus of Resilience), kJ/m3 360
740
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 47
25
Strength to Weight: Axial, points 25
22
Strength to Weight: Bending, points 31
21
Thermal Shock Resistance, points 12
17

Alloy Composition

Aluminum (Al), % 78.7 to 83.3
0
Carbon (C), % 0
0 to 0.1
Chromium (Cr), % 0
8.0 to 10.5
Copper (Cu), % 0 to 0.1
0 to 0.35
Iron (Fe), % 0 to 0.3
85.5 to 90.6
Magnesium (Mg), % 0.2 to 0.5
0
Manganese (Mn), % 0 to 0.15
0.4 to 1.0
Molybdenum (Mo), % 0
0.8 to 1.2
Nickel (Ni), % 0
0 to 0.2
Phosphorus (P), % 0
0 to 0.025
Silicon (Si), % 7.5 to 9.5
0.25 to 0.6
Sulfur (S), % 0
0 to 0.025
Titanium (Ti), % 0 to 0.15
0
Vanadium (V), % 0
0 to 0.030
Zinc (Zn), % 9.0 to 10.5
0
Residuals, % 0
0 to 0.5