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R30816 Cobalt vs. Z41121 Zinc

R30816 cobalt belongs to the cobalt alloys classification, while Z41121 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 Z41121 zinc.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
87
Elongation at Break, % 23
50
Poisson's Ratio 0.3
0.25
Shear Modulus, GPa 81
35
Tensile Strength: Ultimate (UTS), MPa 1020
140
Tensile Strength: Yield (Proof), MPa 460
120

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
54
Embodied Water, L/kg 440
340

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
68
Resilience: Unit (Modulus of Resilience), kJ/m3 510
79
Stiffness to Weight: Axial, points 13
7.4
Stiffness to Weight: Bending, points 22
23
Strength to Weight: Axial, points 31
6.1
Strength to Weight: Bending, points 25
9.3
Thermal Diffusivity, mm2/s 3.3
44
Thermal Shock Resistance, points 28
4.6

Alloy Composition

Aluminum (Al), % 0
0 to 0.010
Cadmium (Cd), % 0
0 to 0.0050
Carbon (C), % 0.32 to 0.42
0
Chromium (Cr), % 19 to 21
0
Cobalt (Co), % 40 to 49.8
0
Copper (Cu), % 0
0.080 to 0.49
Iron (Fe), % 0 to 5.0
0 to 0.010
Lead (Pb), % 0
0 to 0.010
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
Tin (Sn), % 0
0 to 0.0030
Titanium (Ti), % 0
0.050 to 0.18
Tungsten (W), % 3.5 to 4.5
0
Zinc (Zn), % 0
99.292 to 99.87