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Z24311 Zinc vs. R30605 Cobalt

Z24311 zinc belongs to the zinc alloys classification, while R30605 cobalt belongs to the cobalt 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 Z24311 zinc and the bottom bar is R30605 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 87
210
Elongation at Break, % 63
34
Poisson's Ratio 0.25
0.29
Shear Modulus, GPa 35
81
Tensile Strength: Ultimate (UTS), MPa 140
1130 to 1900
Tensile Strength: Yield (Proof), MPa 120
470 to 1600

Thermal Properties

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

Electrical Properties

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

Otherwise Unclassified Properties

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

Common Calculations

Stiffness to Weight: Axial, points 7.4
12
Stiffness to Weight: Bending, points 23
21
Strength to Weight: Axial, points 6.1
33 to 55
Strength to Weight: Bending, points 9.3
25 to 36
Thermal Diffusivity, mm2/s 44
2.5
Thermal Shock Resistance, points 4.6
31 to 52

Alloy Composition

Aluminum (Al), % 0 to 0.0020
0
Cadmium (Cd), % 0 to 0.0050
0
Carbon (C), % 0
0.050 to 0.15
Chromium (Cr), % 0
19 to 21
Cobalt (Co), % 0
46.4 to 57
Copper (Cu), % 0 to 0.0050
0
Iron (Fe), % 0 to 0.010
0 to 3.0
Lead (Pb), % 0.030 to 0.080
0
Magnesium (Mg), % 0 to 0.0015
0
Manganese (Mn), % 0 to 0.015
1.0 to 2.0
Nickel (Ni), % 0
9.0 to 11
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0
0 to 0.4
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 0 to 0.020
0
Tungsten (W), % 0
14 to 16
Zinc (Zn), % 99.862 to 100
0