Duplex Stainless Steel

Duplex Grades Stocked:

*F51 / UNS31803 / 1.4462

* Materials where applicable are supplied in accordance with NACE MR0175

Rounds: 3mm dia. to 520mm dia

Properties

  • Moderate – good strength
  • Good corrosion & pitting resistance
  • Good stress corrosion cracking resistance
  • Good weldability
  • Good formability

Duplex stainless steels have a high Chromium content (22%), a moderate Nickel content (5.5%) and 3% Molybdenum.  The main advantage of Duplex F51 / 1.4462 / UNS 31803 stainless steel is the combination of properties given by both the austenitic and ferritic steels.

Applications

This grade is used in oil & gas, marine, brewing, power generation and chemical industry applications. Specific product applications include heat exchangers, chemical tanks, refineries, marine shafts, pressure vessel parts, compressor parts.

The metallurgy of these steels can be complex and if you need any help concerning usage, heat treatment etc, please do consult our in-house metallurgist for advice specific to your needs.

William Innes Bill@birdstst.com 01226 766766