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Grade 705C Zirconium vs. Z21721 Zinc

Grade 705C zirconium belongs to the otherwise unclassified metals classification, while Z21721 zinc belongs to the zinc alloys. There are 20 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is grade 705C zirconium and the bottom bar is Z21721 zinc.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 98
87
Elongation at Break, % 13
40
Poisson's Ratio 0.34
0.25
Shear Modulus, GPa 36
35
Tensile Strength: Ultimate (UTS), MPa 540
150
Tensile Strength: Yield (Proof), MPa 390
120

Thermal Properties

Latent Heat of Fusion, J/g 250
110
Specific Heat Capacity, J/kg-K 270
390
Thermal Conductivity, W/m-K 18
110
Thermal Expansion, µm/m-K 5.7
26

Otherwise Unclassified Properties

Density, g/cm3 6.7
6.6
Embodied Water, L/kg 450
340

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 66
57
Resilience: Unit (Modulus of Resilience), kJ/m3 790
88
Stiffness to Weight: Axial, points 8.1
7.3
Stiffness to Weight: Bending, points 23
22
Strength to Weight: Axial, points 22
6.4
Strength to Weight: Bending, points 22
9.6
Thermal Diffusivity, mm2/s 9.9
44
Thermal Shock Resistance, points 69
4.8

Alloy Composition

Aluminum (Al), % 0
0 to 0.0020
Cadmium (Cd), % 0
0 to 0.070
Carbon (C), % 0 to 0.1
0
Copper (Cu), % 0
0 to 0.0050
Hafnium (Hf), % 0 to 4.5
0
Hydrogen (H), % 0 to 0.0050
0
Iron (Fe), % 0 to 0.3
0 to 0.010
Lead (Pb), % 0
0 to 1.0
Niobium (Nb), % 2.0 to 3.0
0
Nitrogen (N), % 0 to 0.030
0
Oxygen (O), % 0 to 0.3
0
Phosphorus (P), % 0 to 0.010
0
Titanium (Ti), % 0
0 to 0.020
Zinc (Zn), % 0
98.9 to 100
Zirconium (Zr), % 91.9 to 98
0