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EN AC-71100 Aluminum vs. AWS E70C-Ni2

EN AC-71100 aluminum belongs to the aluminum alloys classification, while AWS E70C-Ni2 belongs to the iron alloys. There are 25 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 EN AC-71100 aluminum and the bottom bar is AWS E70C-Ni2.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 72
190
Elongation at Break, % 1.1
27
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 27
72
Tensile Strength: Ultimate (UTS), MPa 260
560
Tensile Strength: Yield (Proof), MPa 230
450

Thermal Properties

Latent Heat of Fusion, J/g 490
250
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
7.5
Electrical Conductivity: Equal Weight (Specific), % IACS 97
8.6

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
3.3
Density, g/cm3 2.9
7.8
Embodied Carbon, kg CO2/kg material 7.4
1.6
Embodied Energy, MJ/kg 140
22
Embodied Water, L/kg 1010
51

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.8
140
Resilience: Unit (Modulus of Resilience), kJ/m3 360
540
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 47
24
Strength to Weight: Axial, points 25
20
Strength to Weight: Bending, points 31
19
Thermal Shock Resistance, points 12
17

Alloy Composition

Aluminum (Al), % 78.7 to 83.3
0
Carbon (C), % 0
0 to 0.080
Copper (Cu), % 0 to 0.1
0 to 0.35
Iron (Fe), % 0 to 0.3
94.1 to 98.3
Magnesium (Mg), % 0.2 to 0.5
0
Manganese (Mn), % 0 to 0.15
0 to 1.3
Nickel (Ni), % 0
1.8 to 2.8
Phosphorus (P), % 0
0 to 0.025
Silicon (Si), % 7.5 to 9.5
0 to 0.9
Sulfur (S), % 0
0 to 0.030
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