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S40930 Stainless Steel vs. Commercially Pure Zirconium

S40930 stainless steel belongs to the iron alloys classification, while commercially pure zirconium belongs to the otherwise unclassified metals. There are 21 material properties with values for both materials. Properties with values for just one material (13, in this case) are not shown.

For each property being compared, the top bar is S40930 stainless steel and the bottom bar is commercially pure zirconium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
98
Elongation at Break, % 23
18
Fatigue Strength, MPa 130
60
Poisson's Ratio 0.28
0.34
Shear Modulus, GPa 75
36
Tensile Strength: Ultimate (UTS), MPa 430
430
Tensile Strength: Yield (Proof), MPa 190
240

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
5.5

Otherwise Unclassified Properties

Density, g/cm3 7.8
6.7
Embodied Water, L/kg 94
450

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 80
65
Resilience: Unit (Modulus of Resilience), kJ/m3 94
290
Stiffness to Weight: Axial, points 14
8.1
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 16
18
Strength to Weight: Bending, points 16
19
Thermal Diffusivity, mm2/s 6.7
12
Thermal Shock Resistance, points 16
56

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.050
Chromium (Cr), % 10.5 to 11.7
0 to 0.2
Hafnium (Hf), % 0
0 to 4.5
Hydrogen (H), % 0
0 to 0.0050
Iron (Fe), % 84.7 to 89.4
0 to 0.2
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 to 0.025
Oxygen (O), % 0
0 to 0.16
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
94.7 to 100