The mechanical strength and corrosion resistance of the Duplex (austenitic-ferritic) stainless steel is higher than that of austenitic steels and N4462MOD. Duplex steel is used mainly in petrochemical industries. It satisfies a minimum PREN value of 35 and complies with NORSOK M650 and M630 MDS D57 for gauges up to 152.40 mm.
- ABTN | ASTM | SAE | AISI: UNS S31803 / UNS S32205 e F51/F60
- DIN | WNr: 1.4462
- Chemical composition:
C % | Mn % | Cr % | Ni % | Mo % | W % | Si % | OTHERS % |
max. 0.03 | max. 2.00 | 22.60 | 5.00 | 3.10 | - | <=1.00 | N=0.19 |
