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Commercially Pure Zirconium vs. EN 1.6957 Steel

Commercially pure zirconium belongs to the otherwise unclassified metals classification, while EN 1.6957 steel belongs to the iron alloys. 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 commercially pure zirconium and the bottom bar is EN 1.6957 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 98
190
Elongation at Break, % 18
18
Fatigue Strength, MPa 60
530
Poisson's Ratio 0.34
0.29
Shear Modulus, GPa 36
73
Tensile Strength: Ultimate (UTS), MPa 430
930
Tensile Strength: Yield (Proof), MPa 240
780

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Specific Heat Capacity, J/kg-K 270
470
Thermal Conductivity, W/m-K 22
47
Thermal Expansion, µm/m-K 5.5
13

Otherwise Unclassified Properties

Density, g/cm3 6.7
7.9
Embodied Water, L/kg 450
60

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 65
160
Resilience: Unit (Modulus of Resilience), kJ/m3 290
1630
Stiffness to Weight: Axial, points 8.1
13
Stiffness to Weight: Bending, points 23
24
Strength to Weight: Axial, points 18
33
Strength to Weight: Bending, points 19
27
Thermal Diffusivity, mm2/s 12
13
Thermal Shock Resistance, points 56
27

Alloy Composition

Carbon (C), % 0 to 0.050
0.22 to 0.32
Chromium (Cr), % 0 to 0.2
1.2 to 1.8
Hafnium (Hf), % 0 to 4.5
0
Hydrogen (H), % 0 to 0.0050
0
Iron (Fe), % 0 to 0.2
92.7 to 94.7
Manganese (Mn), % 0
0.15 to 0.4
Molybdenum (Mo), % 0
0.25 to 0.45
Nickel (Ni), % 0
3.4 to 4.0
Nitrogen (N), % 0 to 0.025
0
Oxygen (O), % 0 to 0.16
0
Phosphorus (P), % 0
0 to 0.010
Silicon (Si), % 0
0 to 0.15
Sulfur (S), % 0
0 to 0.0070
Vanadium (V), % 0
0.050 to 0.15
Zirconium (Zr), % 94.7 to 100
0