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S17400 Stainless Steel vs. Low-oxygen Zirconium

S17400 stainless steel belongs to the iron alloys classification, while low-oxygen zirconium belongs to the otherwise unclassified metals. There are 20 material properties with values for both materials. Properties with values for just one material (16, in this case) are not shown.

For each property being compared, the top bar is S17400 stainless steel and the bottom bar is low-oxygen zirconium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
98
Elongation at Break, % 11 to 21
23
Poisson's Ratio 0.28
0.34
Shear Modulus, GPa 75
37
Tensile Strength: Ultimate (UTS), MPa 910 to 1390
330
Tensile Strength: Yield (Proof), MPa 580 to 1250
270

Thermal Properties

Latent Heat of Fusion, J/g 280
250
Specific Heat Capacity, J/kg-K 480
270
Thermal Conductivity, W/m-K 17
22
Thermal Expansion, µm/m-K 11
5.7

Otherwise Unclassified Properties

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

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140 to 160
70
Resilience: Unit (Modulus of Resilience), kJ/m3 880 to 4060
370
Stiffness to Weight: Axial, points 14
8.1
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 32 to 49
14
Strength to Weight: Bending, points 27 to 35
16
Thermal Diffusivity, mm2/s 4.5
12
Thermal Shock Resistance, points 30 to 46
42

Alloy Composition

Carbon (C), % 0 to 0.070
0 to 0.050
Chromium (Cr), % 15 to 17
0 to 0.2
Copper (Cu), % 3.0 to 5.0
0
Hafnium (Hf), % 0
0 to 4.5
Hydrogen (H), % 0
0 to 0.0050
Iron (Fe), % 70.4 to 78.9
0 to 0.2
Manganese (Mn), % 0 to 1.0
0
Nickel (Ni), % 3.0 to 5.0
0
Niobium (Nb), % 0.15 to 0.45
0
Nitrogen (N), % 0
0 to 0.025
Oxygen (O), % 0
0 to 0.1
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