Martensitic-Austenitic Valves in F317, F321 and F347 valves and their use.
Martensitic-Austenitic valves in F321 and F347 are commonly used in steam processes.
Martensitic-Austenitic steel specification and equivalents
| Austenitic steels | F317, F321 and F347 |
| Martensitic steels | A182 F6NM / UNS S41500 |
