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EN 1.7379 Steel vs. Reactor Grade Zirconium

EN 1.7379 steel 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 (12, in this case) are not shown.

For each property being compared, the top bar is EN 1.7379 steel and the bottom bar is reactor grade zirconium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
98
Elongation at Break, % 21
21
Poisson's Ratio 0.29
0.34
Shear Modulus, GPa 74
37
Tensile Strength: Ultimate (UTS), MPa 670
330
Tensile Strength: Yield (Proof), MPa 460
160

Thermal Properties

Latent Heat of Fusion, J/g 260
250
Specific Heat Capacity, J/kg-K 470
270
Thermal Conductivity, W/m-K 39
22
Thermal Expansion, µm/m-K 13
5.9

Otherwise Unclassified Properties

Density, g/cm3 7.8
6.5
Embodied Water, L/kg 59
280

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
56
Resilience: Unit (Modulus of Resilience), kJ/m3 550
130
Stiffness to Weight: Axial, points 13
8.4
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 24
14
Strength to Weight: Bending, points 22
16
Thermal Diffusivity, mm2/s 11
13
Thermal Shock Resistance, points 19
41

Alloy Composition

Carbon (C), % 0.13 to 0.2
0
Chromium (Cr), % 2.0 to 2.5
0
Iron (Fe), % 94.5 to 96.5
0
Manganese (Mn), % 0.5 to 0.9
0
Molybdenum (Mo), % 0.9 to 1.2
0
Phosphorus (P), % 0 to 0.025
0
Silicon (Si), % 0 to 0.6
0
Sulfur (S), % 0 to 0.030
0
Zirconium (Zr), % 0
99.7 to 100
Residuals, % 0
0 to 0.27