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Z20301 Zinc vs. R30075 Cobalt

Z20301 zinc belongs to the zinc alloys classification, while R30075 cobalt belongs to the cobalt alloys. There are 26 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is Z20301 zinc and the bottom bar is R30075 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 87
210 to 250
Elongation at Break, % 53
12
Poisson's Ratio 0.25
0.29
Shear Modulus, GPa 35
82 to 98
Tensile Strength: Ultimate (UTS), MPa 160
780 to 1280
Tensile Strength: Yield (Proof), MPa 130
480 to 840

Thermal Properties

Latent Heat of Fusion, J/g 110
320
Melting Completion (Liquidus), °C 410
1360
Melting Onset (Solidus), °C 400
1290
Specific Heat Capacity, J/kg-K 390
450
Thermal Conductivity, W/m-K 110
13
Thermal Expansion, µm/m-K 26
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 27
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 37
2.1

Otherwise Unclassified Properties

Density, g/cm3 6.6
8.4
Embodied Carbon, kg CO2/kg material 2.8
8.1
Embodied Energy, MJ/kg 53
110
Embodied Water, L/kg 340
530

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 78
84 to 140
Resilience: Unit (Modulus of Resilience), kJ/m3 96
560 to 1410
Stiffness to Weight: Axial, points 7.4
14 to 17
Stiffness to Weight: Bending, points 23
24 to 25
Strength to Weight: Axial, points 6.7
26 to 42
Strength to Weight: Bending, points 9.9
22 to 31
Thermal Diffusivity, mm2/s 44
3.5
Thermal Shock Resistance, points 5.0
21 to 29

Alloy Composition

Aluminum (Al), % 0 to 0.0020
0 to 0.1
Boron (B), % 0
0 to 0.010
Cadmium (Cd), % 0 to 0.010
0
Carbon (C), % 0
0 to 0.35
Chromium (Cr), % 0
27 to 30
Cobalt (Co), % 0
58.7 to 68
Copper (Cu), % 0 to 0.0050
0
Iron (Fe), % 0 to 0.010
0 to 0.75
Lead (Pb), % 0 to 0.1
0
Manganese (Mn), % 0
0 to 1.0
Molybdenum (Mo), % 0
5.0 to 7.0
Nickel (Ni), % 0
0 to 0.5
Nitrogen (N), % 0
0 to 0.25
Phosphorus (P), % 0
0 to 0.020
Silicon (Si), % 0
0 to 1.0
Sulfur (S), % 0
0 to 0.010
Titanium (Ti), % 0 to 0.020
0 to 0.1
Tungsten (W), % 0
0 to 0.2
Zinc (Zn), % 99.853 to 100
0