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S17700 Stainless Steel vs. Commercially Pure Zirconium

S17700 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 S17700 stainless steel and the bottom bar is commercially pure zirconium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
98
Elongation at Break, % 1.0 to 23
18
Fatigue Strength, MPa 290 to 560
60
Poisson's Ratio 0.28
0.34
Shear Modulus, GPa 76
36
Tensile Strength: Ultimate (UTS), MPa 1180 to 1650
430
Tensile Strength: Yield (Proof), MPa 430 to 1210
240

Thermal Properties

Latent Heat of Fusion, J/g 290
250
Specific Heat Capacity, J/kg-K 480
270
Thermal Conductivity, W/m-K 15
22
Thermal Expansion, µm/m-K 11
5.5

Otherwise Unclassified Properties

Density, g/cm3 7.7
6.7
Embodied Water, L/kg 150
450

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 15 to 210
65
Resilience: Unit (Modulus of Resilience), kJ/m3 460 to 3750
290
Stiffness to Weight: Axial, points 14
8.1
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 42 to 59
18
Strength to Weight: Bending, points 32 to 40
19
Thermal Diffusivity, mm2/s 4.1
12
Thermal Shock Resistance, points 39 to 54
56

Alloy Composition

Aluminum (Al), % 0.75 to 1.5
0
Carbon (C), % 0 to 0.090
0 to 0.050
Chromium (Cr), % 16 to 18
0 to 0.2
Hafnium (Hf), % 0
0 to 4.5
Hydrogen (H), % 0
0 to 0.0050
Iron (Fe), % 70.5 to 76.8
0 to 0.2
Manganese (Mn), % 0 to 1.0
0
Nickel (Ni), % 6.5 to 7.8
0
Nitrogen (N), % 0
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 0.030
0
Zirconium (Zr), % 0
94.7 to 100