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R30001 Cobalt vs. Z20301 Zinc

R30001 cobalt belongs to the cobalt alloys classification, while Z20301 zinc belongs to the zinc alloys. There are 23 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 R30001 cobalt and the bottom bar is Z20301 zinc.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 220
87
Elongation at Break, % 1.0
53
Poisson's Ratio 0.28
0.25
Shear Modulus, GPa 86
35
Tensile Strength: Ultimate (UTS), MPa 620
160

Thermal Properties

Latent Heat of Fusion, J/g 310
110
Melting Completion (Liquidus), °C 1530
410
Melting Onset (Solidus), °C 1260
400
Specific Heat Capacity, J/kg-K 430
390
Thermal Conductivity, W/m-K 15
110
Thermal Expansion, µm/m-K 11
26

Electrical Properties

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

Otherwise Unclassified Properties

Density, g/cm3 9.0
6.6
Embodied Carbon, kg CO2/kg material 8.9
2.8
Embodied Energy, MJ/kg 130
53
Embodied Water, L/kg 460
340

Common Calculations

Stiffness to Weight: Axial, points 14
7.4
Stiffness to Weight: Bending, points 22
23
Strength to Weight: Axial, points 19
6.7
Strength to Weight: Bending, points 18
9.9
Thermal Diffusivity, mm2/s 3.7
44
Thermal Shock Resistance, points 19
5.0

Alloy Composition

Aluminum (Al), % 0
0 to 0.0020
Cadmium (Cd), % 0
0 to 0.010
Carbon (C), % 2.0 to 3.0
0
Chromium (Cr), % 28 to 32
0
Cobalt (Co), % 43 to 59
0
Copper (Cu), % 0
0 to 0.0050
Iron (Fe), % 0 to 3.0
0 to 0.010
Lead (Pb), % 0
0 to 0.1
Molybdenum (Mo), % 0 to 1.0
0
Nickel (Ni), % 0 to 3.0
0
Silicon (Si), % 0 to 2.0
0
Titanium (Ti), % 0
0 to 0.020
Tungsten (W), % 11 to 13
0
Zinc (Zn), % 0
99.853 to 100