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240.0 Aluminum vs. Austempered Cast Iron

240.0 aluminum belongs to the aluminum alloys classification, while austempered cast iron 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 240.0 aluminum and the bottom bar is austempered cast iron.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 72
180
Elongation at Break, % 1.0
1.1 to 13
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 27
62 to 69
Tensile Strength: Ultimate (UTS), MPa 240
860 to 1800
Tensile Strength: Yield (Proof), MPa 200
560 to 1460

Thermal Properties

Latent Heat of Fusion, J/g 380
280
Melting Completion (Liquidus), °C 600
1380
Melting Onset (Solidus), °C 520
1340
Specific Heat Capacity, J/kg-K 860
490
Thermal Conductivity, W/m-K 96
42
Thermal Expansion, µm/m-K 22
13

Otherwise Unclassified Properties

Base Metal Price, % relative 12
2.9
Density, g/cm3 3.2
7.5
Embodied Carbon, kg CO2/kg material 8.7
1.8
Embodied Energy, MJ/kg 150
25
Embodied Water, L/kg 1100
48

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.2
19 to 95
Resilience: Unit (Modulus of Resilience), kJ/m3 280
880 to 3970
Stiffness to Weight: Axial, points 12
13
Stiffness to Weight: Bending, points 43
25
Strength to Weight: Axial, points 20
32 to 66
Strength to Weight: Bending, points 26
27 to 44
Thermal Diffusivity, mm2/s 35
11
Thermal Shock Resistance, points 11
25 to 53

Alloy Composition

Aluminum (Al), % 81.7 to 86.9
0 to 0.050
Arsenic (As), % 0
0 to 0.020
Carbon (C), % 0
3.4 to 3.8
Chromium (Cr), % 0
0 to 0.1
Copper (Cu), % 7.0 to 9.0
0 to 0.8
Iron (Fe), % 0 to 0.5
89.6 to 94
Magnesium (Mg), % 5.5 to 6.5
0 to 0.040
Manganese (Mn), % 0.3 to 0.7
0.3 to 0.4
Molybdenum (Mo), % 0
0 to 0.3
Nickel (Ni), % 0.3 to 0.7
0 to 2.0
Phosphorus (P), % 0
0 to 0.040
Selenium (Se), % 0
0 to 0.030
Silicon (Si), % 0 to 0.5
2.3 to 2.7
Sulfur (S), % 0
0 to 0.020
Tin (Sn), % 0
0 to 0.020
Titanium (Ti), % 0 to 0.2
0
Vanadium (V), % 0
0 to 0.1
Zinc (Zn), % 0 to 0.1
0
Residuals, % 0 to 0.15
0