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Austenitic Grey Cast Iron vs. ZC63A Magnesium

Austenitic grey cast iron belongs to the iron alloys classification, while ZC63A magnesium belongs to the magnesium alloys. There are 20 material properties with values for both materials. Properties with values for just one material (13, 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 ZC63A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 110 to 210
60
Elastic (Young's, Tensile) Modulus, GPa 180
48
Poisson's Ratio 0.29 to 0.3
0.29
Shear Modulus, GPa 69 to 72
19
Tensile Strength: Ultimate (UTS), MPa 150 to 230
220

Thermal Properties

Latent Heat of Fusion, J/g 280 to 350
330
Melting Completion (Liquidus), °C 1340 to 1400
550
Melting Onset (Solidus), °C 1290 to 1350
470
Specific Heat Capacity, J/kg-K 470 to 490
950
Thermal Expansion, µm/m-K 13 to 14
26

Otherwise Unclassified Properties

Base Metal Price, % relative 14 to 24
13
Density, g/cm3 7.7 to 8.1
2.1
Embodied Carbon, kg CO2/kg material 3.1 to 4.7
22
Embodied Energy, MJ/kg 43 to 65
150
Embodied Water, L/kg 93 to 120
920

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 23 to 25
58
Strength to Weight: Axial, points 5.3 to 8.2
29
Strength to Weight: Bending, points 7.9 to 11
38
Thermal Shock Resistance, points 4.5 to 6.5
12