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R30816 Cobalt vs. Z20301 Zinc

R30816 cobalt belongs to the cobalt alloys classification, while Z20301 zinc belongs to the zinc alloys. There are 24 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 R30816 cobalt and the bottom bar is Z20301 zinc.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
87
Elongation at Break, % 23
53
Poisson's Ratio 0.3
0.25
Shear Modulus, GPa 81
35
Tensile Strength: Ultimate (UTS), MPa 1020
160
Tensile Strength: Yield (Proof), MPa 460
130

Thermal Properties

Latent Heat of Fusion, J/g 300
110
Melting Completion (Liquidus), °C 1540
410
Melting Onset (Solidus), °C 1460
400
Specific Heat Capacity, J/kg-K 420
390
Thermal Conductivity, W/m-K 13
110
Thermal Expansion, µm/m-K 12
26

Otherwise Unclassified Properties

Density, g/cm3 9.1
6.6
Embodied Carbon, kg CO2/kg material 20
2.8
Embodied Energy, MJ/kg 320
53
Embodied Water, L/kg 440
340

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
78
Resilience: Unit (Modulus of Resilience), kJ/m3 510
96
Stiffness to Weight: Axial, points 13
7.4
Stiffness to Weight: Bending, points 22
23
Strength to Weight: Axial, points 31
6.7
Strength to Weight: Bending, points 25
9.9
Thermal Diffusivity, mm2/s 3.3
44
Thermal Shock Resistance, points 28
5.0

Alloy Composition

Aluminum (Al), % 0
0 to 0.0020
Cadmium (Cd), % 0
0 to 0.010
Carbon (C), % 0.32 to 0.42
0
Chromium (Cr), % 19 to 21
0
Cobalt (Co), % 40 to 49.8
0
Copper (Cu), % 0
0 to 0.0050
Iron (Fe), % 0 to 5.0
0 to 0.010
Lead (Pb), % 0
0 to 0.1
Manganese (Mn), % 1.0 to 2.0
0
Molybdenum (Mo), % 3.5 to 4.5
0
Nickel (Ni), % 19 to 21
0
Niobium (Nb), % 3.5 to 4.5
0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.0
0
Sulfur (S), % 0 to 0.030
0
Tantalum (Ta), % 3.5 to 4.5
0
Titanium (Ti), % 0
0 to 0.020
Tungsten (W), % 3.5 to 4.5
0
Zinc (Zn), % 0
99.853 to 100