Hot-rolled Z21210 Zinc vs. Hot Worked R31538 Cobalt
Hot-rolled Z21210 zinc belongs to the zinc alloys classification, while hot worked R31538 cobalt belongs to the cobalt alloys. There are 14 material properties with values for both materials. Properties with values for just one material (17, in this case) are not shown.
For each property being compared, the top bar is hot-rolled Z21210 zinc and the bottom bar is hot worked R31538 cobalt.
Metric UnitsUS Customary Units
Mechanical Properties
Elongation at Break, % | 58 | |
13 |
Fatigue Strength, MPa | 29 | |
410 |
Tensile Strength: Ultimate (UTS), MPa | 150 | |
1120 |
Thermal Properties
Melting Completion (Liquidus), °C | 420 | |
1360 |
Melting Onset (Solidus), °C | 420 | |
1290 |
Specific Heat Capacity, J/kg-K | 400 | |
450 |
Thermal Conductivity, W/m-K | 110 | |
13 |
Thermal Expansion, µm/m-K | 32 | |
13 |
Electrical Properties
Electrical Conductivity: Equal Volume, % IACS | 28 | |
2.0 |
Electrical Conductivity: Equal Weight (Specific), % IACS | 35 | |
2.1 |
Otherwise Unclassified Properties
Density, g/cm3 | 7.1 | |
8.4 |
Common Calculations
Strength to Weight: Axial, points | 5.7 | |
37 |
Strength to Weight: Bending, points | 8.6 | |
28 |
Thermal Diffusivity, mm2/s | 38 | |
3.5 |