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S20910 Stainless Steel vs. Reactor Grade Zirconium

S20910 stainless 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 S20910 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, % 14 to 39
21
Poisson's Ratio 0.28
0.34
Shear Modulus, GPa 79
37
Tensile Strength: Ultimate (UTS), MPa 780 to 940
330
Tensile Strength: Yield (Proof), MPa 430 to 810
160

Thermal Properties

Latent Heat of Fusion, J/g 300
250
Specific Heat Capacity, J/kg-K 480
270
Thermal Conductivity, W/m-K 13
22
Thermal Expansion, µm/m-K 16
5.9

Otherwise Unclassified Properties

Density, g/cm3 7.8
6.5
Embodied Water, L/kg 180
280

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120 to 260
56
Resilience: Unit (Modulus of Resilience), kJ/m3 460 to 1640
130
Stiffness to Weight: Axial, points 14
8.4
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 28 to 33
14
Strength to Weight: Bending, points 24 to 27
16
Thermal Diffusivity, mm2/s 3.6
13
Thermal Shock Resistance, points 17 to 21
41

Alloy Composition

Carbon (C), % 0 to 0.060
0
Chromium (Cr), % 20.5 to 23.5
0
Iron (Fe), % 52.1 to 62.1
0
Manganese (Mn), % 4.0 to 6.0
0
Molybdenum (Mo), % 1.5 to 3.0
0
Nickel (Ni), % 11.5 to 13.5
0
Niobium (Nb), % 0.1 to 0.3
0
Nitrogen (N), % 0.2 to 0.4
0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 0.75
0
Sulfur (S), % 0 to 0.030
0
Vanadium (V), % 0.1 to 0.3
0
Zirconium (Zr), % 0
99.7 to 100
Residuals, % 0
0 to 0.27