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Ductile Cast Iron vs. Reactor Grade Zirconium

Ductile cast iron belongs to the iron alloys classification, while reactor grade zirconium belongs to the otherwise unclassified metals. There are 20 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is ductile cast iron and the bottom bar is reactor grade zirconium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 170 to 180
98
Elongation at Break, % 2.1 to 20
21
Poisson's Ratio 0.28 to 0.31
0.34
Shear Modulus, GPa 64 to 70
37
Tensile Strength: Ultimate (UTS), MPa 460 to 920
330
Tensile Strength: Yield (Proof), MPa 310 to 670
160

Thermal Properties

Latent Heat of Fusion, J/g 270
250
Specific Heat Capacity, J/kg-K 490
270
Thermal Conductivity, W/m-K 31 to 36
22
Thermal Expansion, µm/m-K 11
5.9

Otherwise Unclassified Properties

Density, g/cm3 7.1 to 7.5
6.5
Embodied Water, L/kg 43
280

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 17 to 80
56
Resilience: Unit (Modulus of Resilience), kJ/m3 280 to 1330
130
Stiffness to Weight: Axial, points 12 to 14
8.4
Stiffness to Weight: Bending, points 24 to 26
24
Strength to Weight: Axial, points 17 to 35
14
Strength to Weight: Bending, points 18 to 29
16
Thermal Diffusivity, mm2/s 8.9 to 10
13
Thermal Shock Resistance, points 17 to 35
41

Alloy Composition

Carbon (C), % 3.0 to 3.5
0
Iron (Fe), % 93.7 to 95.5
0
Phosphorus (P), % 0 to 0.080
0
Silicon (Si), % 1.5 to 2.8
0
Zirconium (Zr), % 0
99.7 to 100
Residuals, % 0
0 to 0.27