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Commercially Pure Zinc vs. R30008 Cobalt

Commercially pure zinc belongs to the zinc alloys classification, while R30008 cobalt belongs to the cobalt alloys. There are 22 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is commercially pure zinc and the bottom bar is R30008 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 87
210
Elongation at Break, % 38
1.1 to 73
Poisson's Ratio 0.25
0.29
Shear Modulus, GPa 35
83
Tensile Strength: Ultimate (UTS), MPa 97
950 to 1700
Tensile Strength: Yield (Proof), MPa 79
500 to 1080

Thermal Properties

Latent Heat of Fusion, J/g 110
320
Melting Completion (Liquidus), °C 410
1400
Melting Onset (Solidus), °C 400
1330
Specific Heat Capacity, J/kg-K 390
450
Thermal Expansion, µm/m-K 26
13

Otherwise Unclassified Properties

Base Metal Price, % relative 11
95
Density, g/cm3 6.6
8.4
Embodied Carbon, kg CO2/kg material 2.8
8.1
Embodied Energy, MJ/kg 53
110
Embodied Water, L/kg 340
400

Common Calculations

Resilience: Unit (Modulus of Resilience), kJ/m3 36
590 to 2720
Stiffness to Weight: Axial, points 7.4
14
Stiffness to Weight: Bending, points 23
24
Strength to Weight: Axial, points 4.1
31 to 56
Strength to Weight: Bending, points 7.1
25 to 37
Thermal Shock Resistance, points 3.0
25 to 44

Alloy Composition

Aluminum (Al), % 0 to 0.010
0
Boron (B), % 0
0 to 0.0010
Cadmium (Cd), % 0 to 0.010
0
Carbon (C), % 0
0 to 0.15
Chromium (Cr), % 0
18.5 to 21.5
Cobalt (Co), % 0
39 to 42
Copper (Cu), % 0 to 0.080
0
Iron (Fe), % 0 to 0.020
7.6 to 20
Lead (Pb), % 0 to 0.030
0
Manganese (Mn), % 0
1.0 to 2.0
Molybdenum (Mo), % 0
6.5 to 7.5
Nickel (Ni), % 0
15 to 18
Phosphorus (P), % 0
0 to 0.015
Silicon (Si), % 0
0 to 1.2
Sulfur (S), % 0
0 to 0.015
Tin (Sn), % 0 to 0.0030
0
Titanium (Ti), % 0 to 0.020
0
Zinc (Zn), % 99.827 to 100
0