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ASTM A216 Cast Steel vs. ZC63A Magnesium

ASTM A216 cast steel belongs to the iron alloys classification, while ZC63A magnesium belongs to the magnesium alloys. There are 29 material properties with values for both materials. Properties with values for just one material (4, 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 ASTM A216 cast steel and the bottom bar is ZC63A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
48
Elongation at Break, % 25 to 27
3.3
Fatigue Strength, MPa 170 to 230
94
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 72
19
Tensile Strength: Ultimate (UTS), MPa 500 to 570
220
Tensile Strength: Yield (Proof), MPa 230 to 310
130

Thermal Properties

Latent Heat of Fusion, J/g 250
330
Maximum Temperature: Mechanical, °C 400
98
Melting Completion (Liquidus), °C 1450 to 1460
550
Melting Onset (Solidus), °C 1410
470
Specific Heat Capacity, J/kg-K 470
950
Thermal Conductivity, W/m-K 49 to 52
120
Thermal Expansion, µm/m-K 12
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.1 to 7.2
32
Electrical Conductivity: Equal Weight (Specific), % IACS 8.2 to 8.3
140

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
13
Density, g/cm3 7.8
2.1
Embodied Carbon, kg CO2/kg material 1.4
22
Embodied Energy, MJ/kg 18
150
Embodied Water, L/kg 45
920

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110 to 120
6.3
Resilience: Unit (Modulus of Resilience), kJ/m3 140 to 250
190
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
58
Strength to Weight: Axial, points 18 to 20
29
Strength to Weight: Bending, points 18 to 20
38
Thermal Diffusivity, mm2/s 13 to 14
58
Thermal Shock Resistance, points 16 to 18
12