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R30605 Cobalt vs. Z40301 Zinc

R30605 cobalt belongs to the cobalt alloys classification, while Z40301 zinc belongs to the zinc alloys. There are 24 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is R30605 cobalt and the bottom bar is Z40301 zinc.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
87
Elongation at Break, % 34
60
Poisson's Ratio 0.29
0.25
Shear Modulus, GPa 81
35
Tensile Strength: Ultimate (UTS), MPa 1130 to 1900
190
Tensile Strength: Yield (Proof), MPa 470 to 1600
150

Thermal Properties

Latent Heat of Fusion, J/g 290
110
Melting Completion (Liquidus), °C 1410
410
Melting Onset (Solidus), °C 1330
400
Specific Heat Capacity, J/kg-K 410
390
Thermal Conductivity, W/m-K 9.6
110
Thermal Expansion, µm/m-K 12
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
27
Electrical Conductivity: Equal Weight (Specific), % IACS 1.8
37

Otherwise Unclassified Properties

Density, g/cm3 9.6
6.6
Embodied Carbon, kg CO2/kg material 9.8
2.8
Embodied Energy, MJ/kg 140
53
Embodied Water, L/kg 450
340

Common Calculations

Stiffness to Weight: Axial, points 12
7.4
Stiffness to Weight: Bending, points 21
23
Strength to Weight: Axial, points 33 to 55
7.9
Strength to Weight: Bending, points 25 to 36
11
Thermal Diffusivity, mm2/s 2.5
44
Thermal Shock Resistance, points 31 to 52
5.9

Alloy Composition

Aluminum (Al), % 0
0 to 0.010
Cadmium (Cd), % 0
0 to 0.0050
Carbon (C), % 0.050 to 0.15
0
Chromium (Cr), % 19 to 21
0
Cobalt (Co), % 46.4 to 57
0
Copper (Cu), % 0
0.5 to 1.0
Iron (Fe), % 0 to 3.0
0 to 0.010
Lead (Pb), % 0
0 to 0.010
Manganese (Mn), % 1.0 to 2.0
0
Nickel (Ni), % 9.0 to 11
0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 0.4
0
Sulfur (S), % 0 to 0.030
0
Tin (Sn), % 0
0 to 0.0030
Titanium (Ti), % 0
0 to 0.040
Tungsten (W), % 14 to 16
0
Zinc (Zn), % 0
98.9 to 99.5