Superduplex stainless steel is engineered with high levels of chromium, molybdenum, and nitrogen to achieve exceptional pitting and crevice corrosion resistance. Its microstructure is carefully balanced to be half austenitic and half ferritic, yielding a metal that is significantly stronger than standard austenitic grades like 316. It is the standard choice for offshore oil platforms, desalination plants, and aggressive chemical processing.
Heard on the job
The chemical plant requires superduplex piping for the acid lines because standard stainless will pit in weeks.
Also heard as
- Superduplex stainless steel