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240.0 Aluminum vs. Ductile Cast Iron

240.0 aluminum belongs to the aluminum alloys classification, while ductile cast iron belongs to the iron alloys. There are 28 material properties with values for both materials. Properties with values for just one material (4, 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 240.0 aluminum and the bottom bar is ductile cast iron.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 72
170 to 180
Elongation at Break, % 1.0
2.1 to 20
Poisson's Ratio 0.33
0.28 to 0.31
Shear Modulus, GPa 27
64 to 70
Tensile Strength: Ultimate (UTS), MPa 240
460 to 920
Tensile Strength: Yield (Proof), MPa 200
310 to 670

Thermal Properties

Latent Heat of Fusion, J/g 380
270
Maximum Temperature: Mechanical, °C 180
290
Melting Completion (Liquidus), °C 600
1160
Melting Onset (Solidus), °C 520
1120
Specific Heat Capacity, J/kg-K 860
490
Thermal Conductivity, W/m-K 96
31 to 36
Thermal Expansion, µm/m-K 22
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 23
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 65
8.8 to 9.4

Otherwise Unclassified Properties

Base Metal Price, % relative 12
1.9
Density, g/cm3 3.2
7.1 to 7.5
Embodied Carbon, kg CO2/kg material 8.7
1.5
Embodied Energy, MJ/kg 150
21
Embodied Water, L/kg 1100
43

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.2
17 to 80
Resilience: Unit (Modulus of Resilience), kJ/m3 280
280 to 1330
Stiffness to Weight: Axial, points 12
12 to 14
Stiffness to Weight: Bending, points 43
24 to 26
Strength to Weight: Axial, points 20
17 to 35
Strength to Weight: Bending, points 26
18 to 29
Thermal Diffusivity, mm2/s 35
8.9 to 10
Thermal Shock Resistance, points 11
17 to 35

Alloy Composition

Aluminum (Al), % 81.7 to 86.9
0
Carbon (C), % 0
3.0 to 3.5
Copper (Cu), % 7.0 to 9.0
0
Iron (Fe), % 0 to 0.5
93.7 to 95.5
Magnesium (Mg), % 5.5 to 6.5
0
Manganese (Mn), % 0.3 to 0.7
0
Nickel (Ni), % 0.3 to 0.7
0
Phosphorus (P), % 0
0 to 0.080
Silicon (Si), % 0 to 0.5
1.5 to 2.8
Titanium (Ti), % 0 to 0.2
0
Zinc (Zn), % 0 to 0.1
0
Residuals, % 0 to 0.15
0