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Commercially Pure Zirconium vs. S15500 Stainless Steel

Commercially pure zirconium belongs to the otherwise unclassified metals classification, while S15500 stainless steel belongs to the iron alloys. There are 21 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 commercially pure zirconium and the bottom bar is S15500 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 98
190
Elongation at Break, % 18
6.8 to 16
Fatigue Strength, MPa 60
350 to 650
Poisson's Ratio 0.34
0.28
Shear Modulus, GPa 36
75
Tensile Strength: Ultimate (UTS), MPa 430
890 to 1490
Tensile Strength: Yield (Proof), MPa 240
590 to 1310

Thermal Properties

Latent Heat of Fusion, J/g 250
280
Specific Heat Capacity, J/kg-K 270
480
Thermal Conductivity, W/m-K 22
17
Thermal Expansion, µm/m-K 5.5
11

Otherwise Unclassified Properties

Density, g/cm3 6.7
7.8
Embodied Water, L/kg 450
130

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 65
98 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 290
890 to 4460
Stiffness to Weight: Axial, points 8.1
14
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 18
32 to 53
Strength to Weight: Bending, points 19
26 to 37
Thermal Diffusivity, mm2/s 12
4.6
Thermal Shock Resistance, points 56
30 to 50

Alloy Composition

Carbon (C), % 0 to 0.050
0 to 0.070
Chromium (Cr), % 0 to 0.2
14 to 15.5
Copper (Cu), % 0
2.5 to 4.5
Hafnium (Hf), % 0 to 4.5
0
Hydrogen (H), % 0 to 0.0050
0
Iron (Fe), % 0 to 0.2
71.9 to 79.9
Manganese (Mn), % 0
0 to 1.0
Nickel (Ni), % 0
3.5 to 5.5
Niobium (Nb), % 0
0.15 to 0.45
Nitrogen (N), % 0 to 0.025
0
Oxygen (O), % 0 to 0.16
0
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0
0 to 1.0
Sulfur (S), % 0
0 to 0.030
Zirconium (Zr), % 94.7 to 100
0