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Commercially Pure Zirconium vs. EN 1.7240 Steel

Commercially pure zirconium belongs to the otherwise unclassified metals classification, while EN 1.7240 steel belongs to the iron alloys. There are 16 material properties with values for both materials. Properties with values for just one material (14, in this case) are not shown.

For each property being compared, the top bar is commercially pure zirconium and the bottom bar is EN 1.7240 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 98
190
Poisson's Ratio 0.34
0.29
Shear Modulus, GPa 36
73
Tensile Strength: Ultimate (UTS), MPa 430
670 to 1990

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Specific Heat Capacity, J/kg-K 270
470
Thermal Conductivity, W/m-K 22
44
Thermal Expansion, µm/m-K 5.5
13

Otherwise Unclassified Properties

Density, g/cm3 6.7
7.8
Embodied Water, L/kg 450
50

Common Calculations

Stiffness to Weight: Axial, points 8.1
13
Stiffness to Weight: Bending, points 23
24
Strength to Weight: Axial, points 18
24 to 71
Strength to Weight: Bending, points 19
22 to 45
Thermal Diffusivity, mm2/s 12
12
Thermal Shock Resistance, points 56
20 to 59

Alloy Composition

Carbon (C), % 0 to 0.050
0.56 to 0.64
Chromium (Cr), % 0 to 0.2
0.7 to 1.0
Hafnium (Hf), % 0 to 4.5
0
Hydrogen (H), % 0 to 0.0050
0
Iron (Fe), % 0 to 0.2
96.7 to 97.9
Manganese (Mn), % 0
0.7 to 1.0
Molybdenum (Mo), % 0
0.15 to 0.25
Nitrogen (N), % 0 to 0.025
0
Oxygen (O), % 0 to 0.16
0
Phosphorus (P), % 0
0 to 0.025
Silicon (Si), % 0
0 to 0.4
Sulfur (S), % 0
0 to 0.025
Zirconium (Zr), % 94.7 to 100
0