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Commercially Pure Zinc vs. R30155 Cobalt

Commercially pure zinc belongs to the zinc alloys classification, while R30155 cobalt belongs to the iron alloys. There are 26 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is commercially pure zinc and the bottom bar is R30155 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 87
210
Elongation at Break, % 38
34
Poisson's Ratio 0.25
0.29
Shear Modulus, GPa 35
81
Tensile Strength: Ultimate (UTS), MPa 97
850
Tensile Strength: Yield (Proof), MPa 79
390

Thermal Properties

Latent Heat of Fusion, J/g 110
300
Maximum Temperature: Mechanical, °C 90
1100
Melting Completion (Liquidus), °C 410
1470
Melting Onset (Solidus), °C 400
1420
Specific Heat Capacity, J/kg-K 390
450
Thermal Conductivity, W/m-K 110
12
Thermal Expansion, µm/m-K 26
14

Otherwise Unclassified Properties

Base Metal Price, % relative 11
80
Density, g/cm3 6.6
8.5
Embodied Carbon, kg CO2/kg material 2.8
9.7
Embodied Energy, MJ/kg 53
150
Embodied Water, L/kg 340
300

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 34
230
Resilience: Unit (Modulus of Resilience), kJ/m3 36
370
Stiffness to Weight: Axial, points 7.4
14
Stiffness to Weight: Bending, points 23
23
Strength to Weight: Axial, points 4.1
28
Strength to Weight: Bending, points 7.1
24
Thermal Diffusivity, mm2/s 44
3.2
Thermal Shock Resistance, points 3.0
21

Alloy Composition

Aluminum (Al), % 0 to 0.010
0
Cadmium (Cd), % 0 to 0.010
0
Carbon (C), % 0
0.080 to 0.16
Chromium (Cr), % 0
20 to 22.5
Cobalt (Co), % 0
18.5 to 21
Copper (Cu), % 0 to 0.080
0
Iron (Fe), % 0 to 0.020
24.3 to 36.2
Lead (Pb), % 0 to 0.030
0
Manganese (Mn), % 0
1.0 to 2.0
Molybdenum (Mo), % 0
2.5 to 3.5
Nickel (Ni), % 0
19 to 21
Niobium (Nb), % 0
0.75 to 1.3
Nitrogen (N), % 0
0 to 0.2
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0
0 to 1.0
Sulfur (S), % 0
0 to 0.030
Tantalum (Ta), % 0
0.75 to 1.3
Tin (Sn), % 0 to 0.0030
0
Titanium (Ti), % 0 to 0.020
0
Tungsten (W), % 0
2.0 to 3.0
Zinc (Zn), % 99.827 to 100
0