The mechanical strength and corrosion resistance of the Duplex (austenitic-ferritic) stainless steel is higher than that of austenitic steels. Duplex steel is used mainly in petrochemical industries. It satisfies a minimum PREN value of 33.
- ABTN | ASTM | SAE | AISI: UNS S31803 | F51 & F60
- DIN | WNr: 1.4462
- Chemical composition:
C % | Mn % | Cr % | Ni % | Mo % | W % | Si % | OTHERS % |
max. 0.03 | max. 2.00 | 22.60 | 4.70 | 2.60 | - | <=1.00 | N=0.18 |
