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Z24311 Zinc vs. R30816 Cobalt

Z24311 zinc belongs to the zinc alloys classification, while R30816 cobalt belongs to the cobalt alloys. There are 24 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 Z24311 zinc and the bottom bar is R30816 cobalt.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 87
210
Elongation at Break, % 63
23
Poisson's Ratio 0.25
0.3
Shear Modulus, GPa 35
81
Tensile Strength: Ultimate (UTS), MPa 140
1020
Tensile Strength: Yield (Proof), MPa 120
460

Thermal Properties

Latent Heat of Fusion, J/g 110
300
Melting Completion (Liquidus), °C 410
1540
Melting Onset (Solidus), °C 400
1460
Specific Heat Capacity, J/kg-K 390
420
Thermal Conductivity, W/m-K 110
13
Thermal Expansion, µm/m-K 26
12

Otherwise Unclassified Properties

Density, g/cm3 6.6
9.1
Embodied Carbon, kg CO2/kg material 2.8
20
Embodied Energy, MJ/kg 53
320
Embodied Water, L/kg 340
440

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 85
190
Resilience: Unit (Modulus of Resilience), kJ/m3 81
510
Stiffness to Weight: Axial, points 7.4
13
Stiffness to Weight: Bending, points 23
22
Strength to Weight: Axial, points 6.1
31
Strength to Weight: Bending, points 9.3
25
Thermal Diffusivity, mm2/s 44
3.3
Thermal Shock Resistance, points 4.6
28

Alloy Composition

Aluminum (Al), % 0 to 0.0020
0
Cadmium (Cd), % 0 to 0.0050
0
Carbon (C), % 0
0.32 to 0.42
Chromium (Cr), % 0
19 to 21
Cobalt (Co), % 0
40 to 49.8
Copper (Cu), % 0 to 0.0050
0
Iron (Fe), % 0 to 0.010
0 to 5.0
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
Molybdenum (Mo), % 0
3.5 to 4.5
Nickel (Ni), % 0
19 to 21
Niobium (Nb), % 0
3.5 to 4.5
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0
0 to 1.0
Sulfur (S), % 0
0 to 0.030
Tantalum (Ta), % 0
3.5 to 4.5
Titanium (Ti), % 0 to 0.020
0
Tungsten (W), % 0
3.5 to 4.5
Zinc (Zn), % 99.862 to 100
0