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Commercially Pure Zirconium vs. EN 1.3956 Stainless Steel

Commercially pure zirconium belongs to the otherwise unclassified metals classification, while EN 1.3956 stainless steel belongs to the iron alloys. There are 19 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is commercially pure zirconium and the bottom bar is EN 1.3956 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 98
200
Elongation at Break, % 18
27
Fatigue Strength, MPa 60
240
Poisson's Ratio 0.34
0.28
Shear Modulus, GPa 36
79
Tensile Strength: Ultimate (UTS), MPa 430
650
Tensile Strength: Yield (Proof), MPa 240
330

Thermal Properties

Latent Heat of Fusion, J/g 250
300
Specific Heat Capacity, J/kg-K 270
480
Thermal Expansion, µm/m-K 5.5
13

Otherwise Unclassified Properties

Density, g/cm3 6.7
7.8
Embodied Water, L/kg 450
180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 65
150
Resilience: Unit (Modulus of Resilience), kJ/m3 290
270
Stiffness to Weight: Axial, points 8.1
14
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 18
23
Strength to Weight: Bending, points 19
21
Thermal Shock Resistance, points 56
18

Alloy Composition

Carbon (C), % 0 to 0.050
0 to 0.060
Chromium (Cr), % 0 to 0.2
20.5 to 23.5
Hafnium (Hf), % 0 to 4.5
0
Hydrogen (H), % 0 to 0.0050
0
Iron (Fe), % 0 to 0.2
51.9 to 62.1
Manganese (Mn), % 0
4.0 to 6.0
Molybdenum (Mo), % 0
1.5 to 3.0
Nickel (Ni), % 0
11.5 to 13.5
Niobium (Nb), % 0
0.1 to 0.3
Nitrogen (N), % 0 to 0.025
0.2 to 0.4
Oxygen (O), % 0 to 0.16
0
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0
0 to 1.0
Sulfur (S), % 0
0 to 0.030
Vanadium (V), % 0
0.1 to 0.3
Zirconium (Zr), % 94.7 to 100
0