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Commercially Pure Zirconium vs. Grade 4 Titanium

Commercially pure zirconium belongs to the otherwise unclassified metals classification, while grade 4 titanium belongs to the titanium alloys. There are 21 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.

For each property being compared, the top bar is commercially pure zirconium and the bottom bar is grade 4 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 98
110
Elongation at Break, % 18
17
Fatigue Strength, MPa 60
340
Poisson's Ratio 0.34
0.32
Shear Modulus, GPa 36
41
Tensile Strength: Ultimate (UTS), MPa 430
640
Tensile Strength: Yield (Proof), MPa 240
530

Thermal Properties

Latent Heat of Fusion, J/g 250
420
Specific Heat Capacity, J/kg-K 270
540
Thermal Conductivity, W/m-K 22
19
Thermal Expansion, µm/m-K 5.5
9.4

Otherwise Unclassified Properties

Density, g/cm3 6.7
4.5
Embodied Water, L/kg 450
110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 65
100
Resilience: Unit (Modulus of Resilience), kJ/m3 290
1330
Stiffness to Weight: Axial, points 8.1
13
Stiffness to Weight: Bending, points 23
35
Strength to Weight: Axial, points 18
40
Strength to Weight: Bending, points 19
37
Thermal Diffusivity, mm2/s 12
7.6
Thermal Shock Resistance, points 56
46

Alloy Composition

Carbon (C), % 0 to 0.050
0 to 0.080
Chromium (Cr), % 0 to 0.2
0
Hafnium (Hf), % 0 to 4.5
0
Hydrogen (H), % 0 to 0.0050
0 to 0.015
Iron (Fe), % 0 to 0.2
0 to 0.5
Nitrogen (N), % 0 to 0.025
0 to 0.050
Oxygen (O), % 0 to 0.16
0 to 0.4
Titanium (Ti), % 0
98.6 to 100
Zirconium (Zr), % 94.7 to 100
0
Residuals, % 0
0 to 0.4