Ferralium® achieves higher strength than most stainless steels and alternative corrosion-resistant alloys, which lets designers reduce section size and cut both weight and cost.
Supplied in the hot worked and annealed condition, this super duplex stainless steel also offers excellent corrosion resistance across a wide range of corrosive media, including sulphuric, nitric and phosphoric acids.
Ferralium® is listed in NACE MR0175 for sour service and is ASME approved for pressure vessel applications. It is tested rigorously to confirm high structural integrity, the correct phase balance and the absence of sigma phase.
A proven super duplex
Originally developed in the 1960s, Ferralium® pioneered the addition of nitrogen and was the first super duplex stainless steel. It was developed further through the 1990s to extend its pitting resistance equivalent number, and more recently to raise its mechanical properties.
It is available as bar, plate, pipe and fittings, with complementary weld wire. It is particularly suitable for larger components, because sigma phase formation is much less likely than in other super duplex grades.
Ferralium® is used in oil and gas, pollution control, marine applications, and water and sewage treatment.