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Z40301 Zinc vs. R30001 Cobalt

Z40301 zinc belongs to the zinc alloys classification, while R30001 cobalt belongs to the cobalt 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 Z40301 zinc and the bottom bar is R30001 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 87
220
Elongation at Break, % 60
1.0
Poisson's Ratio 0.25
0.28
Shear Modulus, GPa 35
86
Tensile Strength: Ultimate (UTS), MPa 190
620

Thermal Properties

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

Electrical Properties

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

Otherwise Unclassified Properties

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

Common Calculations

Stiffness to Weight: Axial, points 7.4
14
Stiffness to Weight: Bending, points 23
22
Strength to Weight: Axial, points 7.9
19
Strength to Weight: Bending, points 11
18
Thermal Diffusivity, mm2/s 44
3.7
Thermal Shock Resistance, points 5.9
19

Alloy Composition

Aluminum (Al), % 0 to 0.010
0
Cadmium (Cd), % 0 to 0.0050
0
Carbon (C), % 0
2.0 to 3.0
Chromium (Cr), % 0
28 to 32
Cobalt (Co), % 0
43 to 59
Copper (Cu), % 0.5 to 1.0
0
Iron (Fe), % 0 to 0.010
0 to 3.0
Lead (Pb), % 0 to 0.010
0
Molybdenum (Mo), % 0
0 to 1.0
Nickel (Ni), % 0
0 to 3.0
Silicon (Si), % 0
0 to 2.0
Tin (Sn), % 0 to 0.0030
0
Titanium (Ti), % 0 to 0.040
0
Tungsten (W), % 0
11 to 13
Zinc (Zn), % 98.9 to 99.5
0