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Commercially Pure Zinc vs. R31233 Cobalt

Commercially pure zinc belongs to the zinc alloys classification, while R31233 cobalt belongs to the cobalt alloys. There are 26 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 commercially pure zinc and the bottom bar is R31233 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 87
220
Elongation at Break, % 38
17
Poisson's Ratio 0.25
0.29
Shear Modulus, GPa 35
85
Tensile Strength: Ultimate (UTS), MPa 97
1020
Tensile Strength: Yield (Proof), MPa 79
420

Thermal Properties

Latent Heat of Fusion, J/g 110
320
Melting Completion (Liquidus), °C 410
1350
Melting Onset (Solidus), °C 400
1330
Specific Heat Capacity, J/kg-K 390
440
Thermal Conductivity, W/m-K 110
12
Thermal Expansion, µm/m-K 26
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 27
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 37
2.1

Otherwise Unclassified Properties

Density, g/cm3 6.6
8.6
Embodied Carbon, kg CO2/kg material 2.8
8.4
Embodied Energy, MJ/kg 53
110
Embodied Water, L/kg 340
480

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 34
140
Resilience: Unit (Modulus of Resilience), kJ/m3 36
410
Stiffness to Weight: Axial, points 7.4
14
Stiffness to Weight: Bending, points 23
23
Strength to Weight: Axial, points 4.1
33
Strength to Weight: Bending, points 7.1
26
Thermal Diffusivity, mm2/s 44
3.2
Thermal Shock Resistance, points 3.0
25

Alloy Composition

Aluminum (Al), % 0 to 0.010
0
Boron (B), % 0
0 to 0.015
Cadmium (Cd), % 0 to 0.010
0
Carbon (C), % 0
0.020 to 0.1
Chromium (Cr), % 0
23.5 to 27.5
Cobalt (Co), % 0
44.7 to 63.3
Copper (Cu), % 0 to 0.080
0
Iron (Fe), % 0 to 0.020
1.0 to 5.0
Lead (Pb), % 0 to 0.030
0
Manganese (Mn), % 0
0.1 to 1.5
Molybdenum (Mo), % 0
4.0 to 6.0
Nickel (Ni), % 0
7.0 to 11
Nitrogen (N), % 0
0.030 to 0.12
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0
0.050 to 1.0
Sulfur (S), % 0
0 to 0.020
Tin (Sn), % 0 to 0.0030
0
Titanium (Ti), % 0 to 0.020
0
Tungsten (W), % 0
1.0 to 3.0
Zinc (Zn), % 99.827 to 100
0