Z21210 Zinc vs. ASTM A229 Spring Steel
Z21210 zinc belongs to the zinc alloys classification, while ASTM A229 spring steel belongs to the iron alloys. There are 12 material properties with values for both materials. Properties with values for just one material (20, in this case) are not shown.
For each property being compared, the top bar is Z21210 zinc and the bottom bar is ASTM A229 spring steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Tensile Strength: Ultimate (UTS), MPa | 150 to 170 | |
| 1690 to 1890 |
Thermal Properties
| Melting Completion (Liquidus), °C | 420 | |
| 1450 |
| Melting Onset (Solidus), °C | 420 | |
| 1410 |
| Specific Heat Capacity, J/kg-K | 400 | |
| 470 |
| Thermal Conductivity, W/m-K | 110 | |
| 50 |
| Thermal Expansion, µm/m-K | 32 | |
| 12 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 28 | |
| 7.2 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 35 | |
| 8.3 |
Otherwise Unclassified Properties
| Density, g/cm3 | 7.1 | |
| 7.8 |
Common Calculations
| Strength to Weight: Axial, points | 5.7 to 6.4 | |
| 60 to 67 |
| Strength to Weight: Bending, points | 8.6 to 9.4 | |
| 40 to 43 |
| Thermal Diffusivity, mm2/s | 38 | |
| 14 |