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Automotive Grey Cast Iron vs. Sintered 2014 Aluminum

Automotive grey cast iron belongs to the iron alloys classification, while sintered 2014 aluminum belongs to the aluminum alloys. There are 27 material properties with values for both materials. Properties with values for just one material (3, 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 automotive grey cast iron and the bottom bar is sintered 2014 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 180
70
Elongation at Break, % 9.6 to 14
0.5 to 3.0
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 69 to 70
26
Tensile Strength: Ultimate (UTS), MPa 140 to 290
140 to 290
Tensile Strength: Yield (Proof), MPa 94 to 200
97 to 280

Thermal Properties

Latent Heat of Fusion, J/g 260 to 280
390
Melting Completion (Liquidus), °C 1380 to 1390
650
Melting Onset (Solidus), °C 1340 to 1350
560
Specific Heat Capacity, J/kg-K 490
880
Thermal Conductivity, W/m-K 41 to 43
130
Thermal Expansion, µm/m-K 12 to 14
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4 to 7.6
33
Electrical Conductivity: Equal Weight (Specific), % IACS 8.8 to 9.1
100

Otherwise Unclassified Properties

Base Metal Price, % relative 1.9 to 3.0
10
Density, g/cm3 7.5 to 7.6
2.9
Embodied Carbon, kg CO2/kg material 1.5 to 1.7
8.0
Embodied Energy, MJ/kg 21 to 24
150
Embodied Water, L/kg 44 to 51
1150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 18 to 25
1.0 to 5.7
Resilience: Unit (Modulus of Resilience), kJ/m3 25 to 110
68 to 560
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 25
47
Strength to Weight: Axial, points 5.2 to 11
13 to 27
Strength to Weight: Bending, points 8.0 to 13
20 to 33
Thermal Diffusivity, mm2/s 11 to 12
51
Thermal Shock Resistance, points 4.2 to 8.6
6.2 to 13