Grade 11 Titanium vs. Reactor Grade Zirconium

Grade 11 titanium belongs to the titanium alloys classification, while reactor grade zirconium belongs to the otherwise unclassified metals. There are 20 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is grade 11 titanium and the bottom bar is reactor grade zirconium.

Grade 11 (3.7225, R52250) Titanium Reactor Grade (R60001) Zirconium

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa		110
Elastic (Young's, Tensile) Modulus, GPa		98

Elongation at Break, %		29
Elongation at Break, %		21

Poisson's Ratio		0.32
Poisson's Ratio		0.34

Shear Modulus, GPa		38
Shear Modulus, GPa		37

Tensile Strength: Ultimate (UTS), MPa		310
Tensile Strength: Ultimate (UTS), MPa		330

Tensile Strength: Yield (Proof), MPa		230
Tensile Strength: Yield (Proof), MPa		160

Thermal Properties

Latent Heat of Fusion, J/g		420
Latent Heat of Fusion, J/g		250

Specific Heat Capacity, J/kg-K		540
Specific Heat Capacity, J/kg-K		270

Thermal Conductivity, W/m-K		22
Thermal Conductivity, W/m-K		22

Thermal Expansion, µm/m-K		9.2
Thermal Expansion, µm/m-K		5.9

Otherwise Unclassified Properties

Density, g/cm³		4.5
Density, g/cm³		6.5

Embodied Water, L/kg		470
Embodied Water, L/kg		280

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m³		81
Resilience: Ultimate (Unit Rupture Work), MJ/m³		56

Resilience: Unit (Modulus of Resilience), kJ/m³		240
Resilience: Unit (Modulus of Resilience), kJ/m³		130

Stiffness to Weight: Axial, points		13
Stiffness to Weight: Axial, points		8.4

Stiffness to Weight: Bending, points		35
Stiffness to Weight: Bending, points		24

Strength to Weight: Axial, points		19
Strength to Weight: Axial, points		14

Strength to Weight: Bending, points		22
Strength to Weight: Bending, points		16

Thermal Diffusivity, mm²/s		8.9
Thermal Diffusivity, mm²/s		13

Thermal Shock Resistance, points		22
Thermal Shock Resistance, points		41

Alloy Composition

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Carbon (C), %		0 to 0.080
Carbon (C), %		0

Hydrogen (H), %		0 to 0.015
Hydrogen (H), %		0

Iron (Fe), %		0 to 0.2
Iron (Fe), %		0

Nitrogen (N), %		0 to 0.030
Nitrogen (N), %		0

Oxygen (O), %		0 to 0.18
Oxygen (O), %		0

Palladium (Pd), %		0.12 to 0.25
Palladium (Pd), %		0

Titanium (Ti), %		98.8 to 99.88
Titanium (Ti), %		0

Zirconium (Zr), %		0
Zirconium (Zr), %		99.7 to 100

Residuals, %		0 to 0.4
Residuals, %		0 to 0.27