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Low-oxygen Zirconium vs. EN 1.4988 Stainless Steel

Low-oxygen zirconium belongs to the otherwise unclassified metals classification, while EN 1.4988 stainless steel belongs to the iron alloys. There are 20 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 low-oxygen zirconium and the bottom bar is EN 1.4988 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 98
200
Elongation at Break, % 23
34
Poisson's Ratio 0.34
0.28
Shear Modulus, GPa 37
77
Tensile Strength: Ultimate (UTS), MPa 330
640
Tensile Strength: Yield (Proof), MPa 270
290

Thermal Properties

Latent Heat of Fusion, J/g 250
290
Specific Heat Capacity, J/kg-K 270
470
Thermal Conductivity, W/m-K 22
15
Thermal Expansion, µm/m-K 5.7
16

Otherwise Unclassified Properties

Density, g/cm3 6.7
7.9
Embodied Water, L/kg 450
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 70
180
Resilience: Unit (Modulus of Resilience), kJ/m3 370
210
Stiffness to Weight: Axial, points 8.1
14
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 14
23
Strength to Weight: Bending, points 16
21
Thermal Diffusivity, mm2/s 12
4.0
Thermal Shock Resistance, points 42
14

Alloy Composition

Carbon (C), % 0 to 0.050
0.040 to 0.1
Chromium (Cr), % 0 to 0.2
15.5 to 17.5
Hafnium (Hf), % 0 to 4.5
0
Hydrogen (H), % 0 to 0.0050
0
Iron (Fe), % 0 to 0.2
62.1 to 69.5
Manganese (Mn), % 0
0 to 1.5
Molybdenum (Mo), % 0
1.1 to 1.5
Nickel (Ni), % 0
12.5 to 14.5
Niobium (Nb), % 0
0.4 to 1.2
Nitrogen (N), % 0 to 0.025
0.060 to 0.14
Oxygen (O), % 0 to 0.1
0
Phosphorus (P), % 0
0 to 0.035
Silicon (Si), % 0
0.3 to 0.6
Sulfur (S), % 0
0 to 0.015
Vanadium (V), % 0
0.6 to 0.85
Zirconium (Zr), % 94.7 to 100
0