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R60705 Alloy vs. Reactor Grade Zirconium

Both R60705 alloy and reactor grade zirconium are otherwise unclassified metals. Both are furnished in the annealed condition. They have a moderately high 95% of their average alloy composition in common. There are 20 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is R60705 alloy and the bottom bar is reactor grade zirconium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 98
98
Elongation at Break, % 18
21
Poisson's Ratio 0.34
0.34
Shear Modulus, GPa 37
37
Tensile Strength: Ultimate (UTS), MPa 540
330
Tensile Strength: Yield (Proof), MPa 430
160

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Specific Heat Capacity, J/kg-K 270
270
Thermal Conductivity, W/m-K 17
22
Thermal Expansion, µm/m-K 6.3
5.9

Otherwise Unclassified Properties

Density, g/cm3 6.7
6.5
Embodied Water, L/kg 450
280

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 90
56
Resilience: Unit (Modulus of Resilience), kJ/m3 950
130
Stiffness to Weight: Axial, points 8.1
8.4
Stiffness to Weight: Bending, points 23
24
Strength to Weight: Axial, points 22
14
Strength to Weight: Bending, points 22
16
Thermal Diffusivity, mm2/s 9.5
13
Thermal Shock Resistance, points 63
41

Alloy Composition


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Carbon (C), % 0 to 0.050
0
Chromium (Cr), % 0 to 0.2
0
Hafnium (Hf), % 0 to 4.5
0
Hydrogen (H), % 0 to 0.0050
0
Iron (Fe), % 0 to 0.2
0
Niobium (Nb), % 2.0 to 3.0
0
Nitrogen (N), % 0 to 0.025
0
Oxygen (O), % 0 to 0.18
0
Zirconium (Zr), % 91 to 98
99.7 to 100
Residuals, % 0
0 to 0.27