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EN AC-71100 Aluminum vs. Ductile Cast Iron

EN AC-71100 aluminum belongs to the aluminum alloys classification, while ductile cast iron 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 EN AC-71100 aluminum and the bottom bar is ductile cast iron.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 110
160 to 310
Elastic (Young's, Tensile) Modulus, GPa 72
170 to 180
Elongation at Break, % 1.1
2.1 to 20
Poisson's Ratio 0.32
0.28 to 0.31
Shear Modulus, GPa 27
64 to 70
Tensile Strength: Ultimate (UTS), MPa 260
460 to 920
Tensile Strength: Yield (Proof), MPa 230
310 to 670

Thermal Properties

Latent Heat of Fusion, J/g 490
270
Maximum Temperature: Mechanical, °C 170
290
Melting Completion (Liquidus), °C 580
1160
Melting Onset (Solidus), °C 520
1120
Specific Heat Capacity, J/kg-K 860
490
Thermal Expansion, µm/m-K 22
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 32
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 97
8.8 to 9.4

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
1.9
Density, g/cm3 2.9
7.1 to 7.5
Embodied Carbon, kg CO2/kg material 7.4
1.5
Embodied Energy, MJ/kg 140
21
Embodied Water, L/kg 1010
43

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.8
17 to 80
Resilience: Unit (Modulus of Resilience), kJ/m3 360
280 to 1330
Stiffness to Weight: Axial, points 14
12 to 14
Stiffness to Weight: Bending, points 47
24 to 26
Strength to Weight: Axial, points 25
17 to 35
Strength to Weight: Bending, points 31
18 to 29
Thermal Shock Resistance, points 12
17 to 35

Alloy Composition

Aluminum (Al), % 78.7 to 83.3
0
Carbon (C), % 0
3.0 to 3.5
Copper (Cu), % 0 to 0.1
0
Iron (Fe), % 0 to 0.3
93.7 to 95.5
Magnesium (Mg), % 0.2 to 0.5
0
Manganese (Mn), % 0 to 0.15
0
Phosphorus (P), % 0
0 to 0.080
Silicon (Si), % 7.5 to 9.5
1.5 to 2.8
Titanium (Ti), % 0 to 0.15
0
Zinc (Zn), % 9.0 to 10.5
0
Residuals, % 0 to 0.15
0