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AISI 329 Stainless Steel vs. Reactor Grade Zirconium

AISI 329 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 AISI 329 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, % 17
21
Poisson's Ratio 0.27
0.34
Shear Modulus, GPa 80
37
Tensile Strength: Ultimate (UTS), MPa 710
330
Tensile Strength: Yield (Proof), MPa 540
160

Thermal Properties

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

Otherwise Unclassified Properties

Density, g/cm3 7.7
6.5
Embodied Water, L/kg 170
280

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
56
Resilience: Unit (Modulus of Resilience), kJ/m3 730
130
Stiffness to Weight: Axial, points 15
8.4
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 25
14
Strength to Weight: Bending, points 23
16
Thermal Diffusivity, mm2/s 4.3
13
Thermal Shock Resistance, points 19
41

Alloy Composition

Carbon (C), % 0 to 0.080
0
Chromium (Cr), % 23 to 28
0
Iron (Fe), % 63.1 to 74
0
Manganese (Mn), % 0 to 1.0
0
Molybdenum (Mo), % 1.0 to 2.0
0
Nickel (Ni), % 2.0 to 5.0
0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 0.75
0
Sulfur (S), % 0 to 0.030
0
Zirconium (Zr), % 0
99.7 to 100
Residuals, % 0
0 to 0.27