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Commercially Pure Zinc vs. R30035 Cobalt

Commercially pure zinc belongs to the zinc alloys classification, while R30035 cobalt belongs to the cobalt alloys. There are 27 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 R30035 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 87
220 to 230
Elongation at Break, % 38
9.0 to 46
Poisson's Ratio 0.25
0.29
Shear Modulus, GPa 35
84 to 89
Tensile Strength: Ultimate (UTS), MPa 97
900 to 1900
Tensile Strength: Yield (Proof), MPa 79
300 to 1650

Thermal Properties

Latent Heat of Fusion, J/g 110
320
Melting Completion (Liquidus), °C 410
1440
Melting Onset (Solidus), °C 400
1320
Specific Heat Capacity, J/kg-K 390
440
Thermal Conductivity, W/m-K 110
11
Thermal Expansion, µm/m-K 26
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 27
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 37
1.8

Otherwise Unclassified Properties

Base Metal Price, % relative 11
100
Density, g/cm3 6.6
8.7
Embodied Carbon, kg CO2/kg material 2.8
10
Embodied Energy, MJ/kg 53
140
Embodied Water, L/kg 340
410

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 34
160 to 320
Resilience: Unit (Modulus of Resilience), kJ/m3 36
210 to 5920
Stiffness to Weight: Axial, points 7.4
14 to 15
Stiffness to Weight: Bending, points 23
23 to 24
Strength to Weight: Axial, points 4.1
29 to 61
Strength to Weight: Bending, points 7.1
24 to 39
Thermal Diffusivity, mm2/s 44
3.0
Thermal Shock Resistance, points 3.0
23 to 46

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 to 0.025
Chromium (Cr), % 0
19 to 21
Cobalt (Co), % 0
29.1 to 39
Copper (Cu), % 0 to 0.080
0
Iron (Fe), % 0 to 0.020
0 to 1.0
Lead (Pb), % 0 to 0.030
0
Manganese (Mn), % 0
0 to 0.15
Molybdenum (Mo), % 0
9.0 to 10.5
Nickel (Ni), % 0
33 to 37
Phosphorus (P), % 0
0 to 0.015
Silicon (Si), % 0
0 to 0.15
Sulfur (S), % 0
0 to 0.010
Tin (Sn), % 0 to 0.0030
0
Titanium (Ti), % 0 to 0.020
0 to 1.0
Zinc (Zn), % 99.827 to 100
0