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R30035 Cobalt vs. Z20301 Zinc

R30035 cobalt belongs to the cobalt alloys classification, while Z20301 zinc belongs to the zinc 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 R30035 cobalt and the bottom bar is Z20301 zinc.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220 to 230
87
Elongation at Break, % 9.0 to 46
53
Poisson's Ratio 0.29
0.25
Shear Modulus, GPa 84 to 89
35
Tensile Strength: Ultimate (UTS), MPa 900 to 1900
160
Tensile Strength: Yield (Proof), MPa 300 to 1650
130

Thermal Properties

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

Electrical Properties

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

Otherwise Unclassified Properties

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

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 160 to 320
78
Resilience: Unit (Modulus of Resilience), kJ/m3 210 to 5920
96
Stiffness to Weight: Axial, points 14 to 15
7.4
Stiffness to Weight: Bending, points 23 to 24
23
Strength to Weight: Axial, points 29 to 61
6.7
Strength to Weight: Bending, points 24 to 39
9.9
Thermal Diffusivity, mm2/s 3.0
44
Thermal Shock Resistance, points 23 to 46
5.0

Alloy Composition

Aluminum (Al), % 0
0 to 0.0020
Boron (B), % 0 to 0.015
0
Cadmium (Cd), % 0
0 to 0.010
Carbon (C), % 0 to 0.025
0
Chromium (Cr), % 19 to 21
0
Cobalt (Co), % 29.1 to 39
0
Copper (Cu), % 0
0 to 0.0050
Iron (Fe), % 0 to 1.0
0 to 0.010
Lead (Pb), % 0
0 to 0.1
Manganese (Mn), % 0 to 0.15
0
Molybdenum (Mo), % 9.0 to 10.5
0
Nickel (Ni), % 33 to 37
0
Phosphorus (P), % 0 to 0.015
0
Silicon (Si), % 0 to 0.15
0
Sulfur (S), % 0 to 0.010
0
Titanium (Ti), % 0 to 1.0
0 to 0.020
Zinc (Zn), % 0
99.853 to 100