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S40930 Stainless Steel vs. Reactor Grade Zirconium

S40930 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 (14, in this case) are not shown.

For each property being compared, the top bar is S40930 stainless 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, % 23
21
Poisson's Ratio 0.28
0.34
Shear Modulus, GPa 75
37
Tensile Strength: Ultimate (UTS), MPa 430
330
Tensile Strength: Yield (Proof), MPa 190
160

Thermal Properties

Latent Heat of Fusion, J/g 270
250
Specific Heat Capacity, J/kg-K 480
270
Thermal Conductivity, W/m-K 25
22
Thermal Expansion, µm/m-K 10
5.9

Otherwise Unclassified Properties

Density, g/cm3 7.8
6.5
Embodied Water, L/kg 94
280

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 80
56
Resilience: Unit (Modulus of Resilience), kJ/m3 94
130
Stiffness to Weight: Axial, points 14
8.4
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 16
14
Strength to Weight: Bending, points 16
16
Thermal Diffusivity, mm2/s 6.7
13
Thermal Shock Resistance, points 16
41

Alloy Composition

Carbon (C), % 0 to 0.030
0
Chromium (Cr), % 10.5 to 11.7
0
Iron (Fe), % 84.7 to 89.4
0
Manganese (Mn), % 0 to 1.0
0
Nickel (Ni), % 0 to 0.5
0
Niobium (Nb), % 0.080 to 0.75
0
Nitrogen (N), % 0 to 0.030
0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.0
0
Sulfur (S), % 0 to 0.020
0
Titanium (Ti), % 0.050 to 0.2
0
Zirconium (Zr), % 0
99.7 to 100
Residuals, % 0
0 to 0.27