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Austenitic Nodular Cast Iron vs. ZE41A Magnesium

Austenitic nodular cast iron belongs to the iron alloys classification, while ZE41A magnesium belongs to the magnesium alloys. There are 24 material properties with values for both materials. Properties with values for just one material (10, 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 nodular cast iron and the bottom bar is ZE41A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140 to 240
63
Elastic (Young's, Tensile) Modulus, GPa 180 to 190
45
Elongation at Break, % 6.8 to 34
3.3
Poisson's Ratio 0.29 to 0.3
0.29
Shear Modulus, GPa 70 to 72
18
Tensile Strength: Ultimate (UTS), MPa 430 to 500
210
Tensile Strength: Yield (Proof), MPa 190 to 240
140

Thermal Properties

Latent Heat of Fusion, J/g 280 to 350
330
Melting Completion (Liquidus), °C 1340 to 1400
640
Melting Onset (Solidus), °C 1300 to 1360
540
Specific Heat Capacity, J/kg-K 470 to 490
970
Thermal Expansion, µm/m-K 13 to 14
27

Otherwise Unclassified Properties

Base Metal Price, % relative 16 to 25
18
Density, g/cm3 7.7 to 8.0
1.9
Embodied Carbon, kg CO2/kg material 3.5 to 4.9
24
Embodied Energy, MJ/kg 48 to 68
170
Embodied Water, L/kg 91 to 120
940

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 24 to 140
6.1
Resilience: Unit (Modulus of Resilience), kJ/m3 98 to 160
220
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24 to 25
63
Strength to Weight: Axial, points 15 to 18
31
Strength to Weight: Bending, points 16 to 18
41
Thermal Shock Resistance, points 12 to 15
12