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2024 Aluminum vs. Ductile Cast Iron

2024 aluminum belongs to the aluminum alloys classification, while ductile cast iron belongs to the iron alloys. There are 29 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 2024 aluminum and the bottom bar is ductile cast iron.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 71
170 to 180
Elongation at Break, % 4.0 to 16
2.1 to 20
Poisson's Ratio 0.33
0.28 to 0.31
Shear Modulus, GPa 27
64 to 70
Shear Strength, MPa 130 to 320
420 to 800
Tensile Strength: Ultimate (UTS), MPa 200 to 540
460 to 920
Tensile Strength: Yield (Proof), MPa 100 to 490
310 to 670

Thermal Properties

Latent Heat of Fusion, J/g 390
270
Maximum Temperature: Mechanical, °C 200
290
Melting Completion (Liquidus), °C 640
1160
Melting Onset (Solidus), °C 500
1120
Specific Heat Capacity, J/kg-K 880
490
Thermal Conductivity, W/m-K 120
31 to 36
Thermal Expansion, µm/m-K 23
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 30
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 90
8.8 to 9.4

Otherwise Unclassified Properties

Base Metal Price, % relative 11
1.9
Density, g/cm3 3.0
7.1 to 7.5
Embodied Carbon, kg CO2/kg material 8.3
1.5
Embodied Energy, MJ/kg 150
21
Embodied Water, L/kg 1140
43

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 20 to 68
17 to 80
Resilience: Unit (Modulus of Resilience), kJ/m3 70 to 1680
280 to 1330
Stiffness to Weight: Axial, points 13
12 to 14
Stiffness to Weight: Bending, points 46
24 to 26
Strength to Weight: Axial, points 18 to 50
17 to 35
Strength to Weight: Bending, points 25 to 49
18 to 29
Thermal Diffusivity, mm2/s 46
8.9 to 10
Thermal Shock Resistance, points 8.6 to 24
17 to 35

Alloy Composition

Aluminum (Al), % 90.7 to 94.7
0
Carbon (C), % 0
3.0 to 3.5
Chromium (Cr), % 0 to 0.1
0
Copper (Cu), % 3.8 to 4.9
0
Iron (Fe), % 0 to 0.5
93.7 to 95.5
Magnesium (Mg), % 1.2 to 1.8
0
Manganese (Mn), % 0.3 to 0.9
0
Phosphorus (P), % 0
0 to 0.080
Silicon (Si), % 0 to 0.5
1.5 to 2.8
Titanium (Ti), % 0 to 0.15
0
Zinc (Zn), % 0 to 0.25
0
Zirconium (Zr), % 0 to 0.2
0
Residuals, % 0 to 0.15
0

Comparable Variants