F239
F239 (Specification for Nickel Alloy Cathode Sleeves for Electron Devices)· ASTM (United States) · 4 materials
| Designation | Material group | |
|---|---|---|
| F239 Grade 10 | Nickel | chevron_right |
| F239 Grade 11 | Nickel | chevron_right |
| F239 Grade 23 | Nickel | chevron_right |
| F239 Grade 7 | Nickel | chevron_right |