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AISI 309H Stainless Steel vs. Low-oxygen Zirconium

AISI 309H 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 (15, in this case) are not shown.

For each property being compared, the top bar is AISI 309H stainless steel and the bottom bar is low-oxygen zirconium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
98
Elongation at Break, % 40
23
Poisson's Ratio 0.27
0.34
Shear Modulus, GPa 78
37
Tensile Strength: Ultimate (UTS), MPa 580
330
Tensile Strength: Yield (Proof), MPa 230
270

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 16
5.7

Otherwise Unclassified Properties

Density, g/cm3 7.8
6.7
Embodied Water, L/kg 170
450

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
70
Resilience: Unit (Modulus of Resilience), kJ/m3 130
370
Stiffness to Weight: Axial, points 14
8.1
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 21
14
Strength to Weight: Bending, points 20
16
Thermal Diffusivity, mm2/s 4.0
12
Thermal Shock Resistance, points 13
42

Alloy Composition

Carbon (C), % 0.040 to 0.1
0 to 0.050
Chromium (Cr), % 22 to 24
0 to 0.2
Hafnium (Hf), % 0
0 to 4.5
Hydrogen (H), % 0
0 to 0.0050
Iron (Fe), % 58.1 to 66
0 to 0.2
Manganese (Mn), % 0 to 2.0
0
Nickel (Ni), % 12 to 15
0
Nitrogen (N), % 0
0 to 0.025
Oxygen (O), % 0
0 to 0.1
Phosphorus (P), % 0 to 0.045
0
Silicon (Si), % 0 to 0.75
0
Sulfur (S), % 0 to 0.030
0
Zirconium (Zr), % 0
94.7 to 100