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S31727 Stainless Steel vs. Reactor Grade Zirconium

S31727 stainless steel belongs to the iron alloys classification, while reactor grade zirconium belongs to the otherwise unclassified metals. There are 18 material properties with values for both materials. Properties with values for just one material (15, in this case) are not shown.

For each property being compared, the top bar is S31727 stainless steel and the bottom bar is reactor grade zirconium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
98
Elongation at Break, % 40
21
Poisson's Ratio 0.28
0.34
Shear Modulus, GPa 78
37
Tensile Strength: Ultimate (UTS), MPa 630
330
Tensile Strength: Yield (Proof), MPa 270
160

Thermal Properties

Latent Heat of Fusion, J/g 290
250
Specific Heat Capacity, J/kg-K 470
270
Thermal Expansion, µm/m-K 16
5.9

Otherwise Unclassified Properties

Density, g/cm3 8.0
6.5
Embodied Water, L/kg 180
280

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 200
56
Resilience: Unit (Modulus of Resilience), kJ/m3 190
130
Stiffness to Weight: Axial, points 14
8.4
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 22
14
Strength to Weight: Bending, points 20
16
Thermal Shock Resistance, points 14
41

Alloy Composition

Carbon (C), % 0 to 0.030
0
Chromium (Cr), % 17.5 to 19
0
Copper (Cu), % 2.8 to 4.0
0
Iron (Fe), % 53.7 to 61.3
0
Manganese (Mn), % 0 to 1.0
0
Molybdenum (Mo), % 3.8 to 4.5
0
Nickel (Ni), % 14.5 to 16.5
0
Nitrogen (N), % 0.15 to 0.21
0
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0 to 1.0
0
Sulfur (S), % 0 to 0.030
0
Zirconium (Zr), % 0
99.7 to 100
Residuals, % 0
0 to 0.27