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Grade 702C Zirconium vs. ZA-8

Grade 702C zirconium belongs to the otherwise unclassified metals classification, while ZA-8 belongs to the zinc alloys. There are 22 material properties with values for both materials. Properties with values for just one material (14, in this case) are not shown.

For each property being compared, the top bar is grade 702C zirconium and the bottom bar is ZA-8.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
87 to 100
Elastic (Young's, Tensile) Modulus, GPa 97
85 to 86
Elongation at Break, % 13
1.3 to 8.0
Poisson's Ratio 0.34
0.26
Rockwell B Hardness 84
54 to 65
Shear Modulus, GPa 36
34
Tensile Strength: Ultimate (UTS), MPa 430
210 to 370
Tensile Strength: Yield (Proof), MPa 310
210 to 290

Thermal Properties

Latent Heat of Fusion, J/g 250
110
Specific Heat Capacity, J/kg-K 270
440
Thermal Conductivity, W/m-K 22
120
Thermal Expansion, µm/m-K 5.7
23

Otherwise Unclassified Properties

Density, g/cm3 6.7
6.3
Embodied Water, L/kg 450
420

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 52
2.8 to 28
Resilience: Unit (Modulus of Resilience), kJ/m3 510
260 to 490
Stiffness to Weight: Axial, points 8.1
7.5
Stiffness to Weight: Bending, points 23
23
Strength to Weight: Axial, points 18
9.3 to 17
Strength to Weight: Bending, points 19
12 to 18
Thermal Diffusivity, mm2/s 12
42
Thermal Shock Resistance, points 55
7.6 to 13

Alloy Composition

Aluminum (Al), % 0
8.0 to 8.8
Cadmium (Cd), % 0
0 to 0.0060
Carbon (C), % 0 to 0.1
0
Copper (Cu), % 0
0.8 to 1.3
Hafnium (Hf), % 0 to 4.5
0
Hydrogen (H), % 0 to 0.0050
0
Iron (Fe), % 0 to 0.3
0 to 0.075
Lead (Pb), % 0
0 to 0.0060
Magnesium (Mg), % 0
0.015 to 0.030
Nickel (Ni), % 0
0 to 0.020
Nitrogen (N), % 0 to 0.030
0
Oxygen (O), % 0 to 0.25
0
Phosphorus (P), % 0 to 0.010
0
Silicon (Si), % 0
0 to 0.045
Tin (Sn), % 0
0 to 0.0030
Zinc (Zn), % 0
89.7 to 91.2
Zirconium (Zr), % 94.8 to 100
0