Reactor Grade Zirconium vs. Titanium 6-2-4-2

Reactor grade zirconium belongs to the otherwise unclassified metals classification, while titanium 6-2-4-2 belongs to the titanium alloys. 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 reactor grade zirconium and the bottom bar is titanium 6-2-4-2.

Reactor Grade (R60001) Zirconium Titanium 6-2-4-2 (3.7145, R54620)

Metric UnitsUS Customary Units

Mechanical Properties

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

Elongation at Break, %		21
Elongation at Break, %		8.6

Poisson's Ratio		0.34
Poisson's Ratio		0.32

Shear Modulus, GPa		37
Shear Modulus, GPa		40

Tensile Strength: Ultimate (UTS), MPa		330
Tensile Strength: Ultimate (UTS), MPa		950

Tensile Strength: Yield (Proof), MPa		160
Tensile Strength: Yield (Proof), MPa		880

Thermal Properties

Latent Heat of Fusion, J/g		250
Latent Heat of Fusion, J/g		400

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

Thermal Conductivity, W/m-K		22
Thermal Conductivity, W/m-K		6.9

Thermal Expansion, µm/m-K		5.9
Thermal Expansion, µm/m-K		9.5

Otherwise Unclassified Properties

Density, g/cm³		6.5
Density, g/cm³		4.6

Embodied Water, L/kg		280
Embodied Water, L/kg		210

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m³		56
Resilience: Ultimate (Unit Rupture Work), MJ/m³		79

Resilience: Unit (Modulus of Resilience), kJ/m³		130
Resilience: Unit (Modulus of Resilience), kJ/m³		3640

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

Stiffness to Weight: Bending, points		24
Stiffness to Weight: Bending, points		34

Strength to Weight: Axial, points		14
Strength to Weight: Axial, points		57

Strength to Weight: Bending, points		16
Strength to Weight: Bending, points		46

Thermal Diffusivity, mm²/s		13
Thermal Diffusivity, mm²/s		2.8

Thermal Shock Resistance, points		41
Thermal Shock Resistance, points		67

Alloy Composition

Aluminum (Al), %		0
Aluminum (Al), %		5.5 to 6.5

Carbon (C), %		0
Carbon (C), %		0 to 0.050

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

Iron (Fe), %		0
Iron (Fe), %		0 to 0.25

Molybdenum (Mo), %		0
Molybdenum (Mo), %		1.8 to 2.2

Nitrogen (N), %		0
Nitrogen (N), %		0 to 0.050

Oxygen (O), %		0
Oxygen (O), %		0 to 0.15

Silicon (Si), %		0
Silicon (Si), %		0.060 to 0.12

Tin (Sn), %		0
Tin (Sn), %		1.8 to 2.2

Titanium (Ti), %		0
Titanium (Ti), %		83.7 to 87.2

Zirconium (Zr), %		99.7 to 100
Zirconium (Zr), %		3.6 to 4.4

Residuals, %		0
Residuals, %		0 to 0.4