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Austenitic Grey Cast Iron vs. EN AC-45000 Aluminum

Austenitic grey cast iron belongs to the iron alloys classification, while EN AC-45000 aluminum belongs to the aluminum alloys. There are 20 material properties with values for both materials. Properties with values for just one material (11, 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 austenitic grey cast iron and the bottom bar is EN AC-45000 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 110 to 210
77
Elastic (Young's, Tensile) Modulus, GPa 180
73
Poisson's Ratio 0.29 to 0.3
0.33
Shear Modulus, GPa 69 to 72
27
Tensile Strength: Ultimate (UTS), MPa 150 to 230
180

Thermal Properties

Latent Heat of Fusion, J/g 280 to 350
470
Melting Completion (Liquidus), °C 1340 to 1400
640
Melting Onset (Solidus), °C 1290 to 1350
520
Specific Heat Capacity, J/kg-K 470 to 490
870
Thermal Expansion, µm/m-K 13 to 14
22

Otherwise Unclassified Properties

Base Metal Price, % relative 14 to 24
11
Density, g/cm3 7.7 to 8.1
3.0
Embodied Carbon, kg CO2/kg material 3.1 to 4.7
7.7
Embodied Energy, MJ/kg 43 to 65
140
Embodied Water, L/kg 93 to 120
1070

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 23 to 25
47
Strength to Weight: Axial, points 5.3 to 8.2
17
Strength to Weight: Bending, points 7.9 to 11
24
Thermal Shock Resistance, points 4.5 to 6.5
8.0