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Grade 705C Zirconium vs. Commercially Pure Zirconium

Both grade 705C zirconium and commercially pure zirconium are otherwise unclassified metals. They have a very high 97% of their average alloy composition in common. There are 20 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is grade 705C zirconium and the bottom bar is commercially pure zirconium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 98
98
Elongation at Break, % 13
18
Poisson's Ratio 0.34
0.34
Shear Modulus, GPa 36
36
Tensile Strength: Ultimate (UTS), MPa 540
430
Tensile Strength: Yield (Proof), MPa 390
240

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Specific Heat Capacity, J/kg-K 270
270
Thermal Conductivity, W/m-K 18
22
Thermal Expansion, µm/m-K 5.7
5.5

Otherwise Unclassified Properties

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

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 66
65
Resilience: Unit (Modulus of Resilience), kJ/m3 790
290
Stiffness to Weight: Axial, points 8.1
8.1
Stiffness to Weight: Bending, points 23
23
Strength to Weight: Axial, points 22
18
Strength to Weight: Bending, points 22
19
Thermal Diffusivity, mm2/s 9.9
12
Thermal Shock Resistance, points 69
56

Alloy Composition

Carbon (C), % 0 to 0.1
0 to 0.050
Chromium (Cr), % 0
0 to 0.2
Hafnium (Hf), % 0 to 4.5
0 to 4.5
Hydrogen (H), % 0 to 0.0050
0 to 0.0050
Iron (Fe), % 0 to 0.3
0 to 0.2
Niobium (Nb), % 2.0 to 3.0
0
Nitrogen (N), % 0 to 0.030
0 to 0.025
Oxygen (O), % 0 to 0.3
0 to 0.16
Phosphorus (P), % 0 to 0.010
0
Zirconium (Zr), % 91.9 to 98
94.7 to 100