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R30155 Cobalt vs. Z40301 Zinc

R30155 cobalt belongs to the iron alloys classification, while Z40301 zinc belongs to the zinc alloys. There are 26 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is R30155 cobalt and the bottom bar is Z40301 zinc.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
87
Elongation at Break, % 34
60
Poisson's Ratio 0.29
0.25
Shear Modulus, GPa 81
35
Tensile Strength: Ultimate (UTS), MPa 850
190
Tensile Strength: Yield (Proof), MPa 390
150

Thermal Properties

Latent Heat of Fusion, J/g 300
110
Maximum Temperature: Mechanical, °C 1100
90
Melting Completion (Liquidus), °C 1470
410
Melting Onset (Solidus), °C 1420
400
Specific Heat Capacity, J/kg-K 450
390
Thermal Conductivity, W/m-K 12
110
Thermal Expansion, µm/m-K 14
26

Otherwise Unclassified Properties

Base Metal Price, % relative 80
12
Density, g/cm3 8.5
6.6
Embodied Carbon, kg CO2/kg material 9.7
2.8
Embodied Energy, MJ/kg 150
53
Embodied Water, L/kg 300
340

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 230
100
Resilience: Unit (Modulus of Resilience), kJ/m3 370
130
Stiffness to Weight: Axial, points 14
7.4
Stiffness to Weight: Bending, points 23
23
Strength to Weight: Axial, points 28
7.9
Strength to Weight: Bending, points 24
11
Thermal Diffusivity, mm2/s 3.2
44
Thermal Shock Resistance, points 21
5.9

Alloy Composition

Aluminum (Al), % 0
0 to 0.010
Cadmium (Cd), % 0
0 to 0.0050
Carbon (C), % 0.080 to 0.16
0
Chromium (Cr), % 20 to 22.5
0
Cobalt (Co), % 18.5 to 21
0
Copper (Cu), % 0
0.5 to 1.0
Iron (Fe), % 24.3 to 36.2
0 to 0.010
Lead (Pb), % 0
0 to 0.010
Manganese (Mn), % 1.0 to 2.0
0
Molybdenum (Mo), % 2.5 to 3.5
0
Nickel (Ni), % 19 to 21
0
Niobium (Nb), % 0.75 to 1.3
0
Nitrogen (N), % 0 to 0.2
0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.0
0
Sulfur (S), % 0 to 0.030
0
Tantalum (Ta), % 0.75 to 1.3
0
Tin (Sn), % 0
0 to 0.0030
Titanium (Ti), % 0
0 to 0.040
Tungsten (W), % 2.0 to 3.0
0
Zinc (Zn), % 0
98.9 to 99.5