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Grade 33 Titanium vs. Reactor Grade Zirconium

Grade 33 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 33 titanium and the bottom bar is reactor grade zirconium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
98
Elongation at Break, % 23
21
Poisson's Ratio 0.32
0.34
Shear Modulus, GPa 41
37
Tensile Strength: Ultimate (UTS), MPa 390
330
Tensile Strength: Yield (Proof), MPa 350
160

Thermal Properties

Latent Heat of Fusion, J/g 420
250
Specific Heat Capacity, J/kg-K 540
270
Thermal Conductivity, W/m-K 21
22
Thermal Expansion, µm/m-K 8.7
5.9

Otherwise Unclassified Properties

Density, g/cm3 4.5
6.5
Embodied Water, L/kg 200
280

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 86
56
Resilience: Unit (Modulus of Resilience), kJ/m3 590
130
Stiffness to Weight: Axial, points 13
8.4
Stiffness to Weight: Bending, points 35
24
Strength to Weight: Axial, points 24
14
Strength to Weight: Bending, points 26
16
Thermal Diffusivity, mm2/s 8.7
13
Thermal Shock Resistance, points 30
41

Alloy Composition

Carbon (C), % 0 to 0.080
0
Chromium (Cr), % 0.1 to 0.2
0
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.3
0
Nickel (Ni), % 0.35 to 0.55
0
Nitrogen (N), % 0 to 0.030
0
Oxygen (O), % 0 to 0.25
0
Palladium (Pd), % 0.010 to 0.020
0
Ruthenium (Ru), % 0.020 to 0.040
0
Titanium (Ti), % 98.1 to 99.52
0
Zirconium (Zr), % 0
99.7 to 100
Residuals, % 0
0 to 0.27