Sandvik Materials Technology Global site | English ( change ) Search Home Products Applications Materials center About us News & media Tube, pipe, fittings and flanges List of alloys High-performance materials Duplex stainless steels Sandvik SAF 2507 Sandvik SAF 2707 HD Sandvik SAF 3207 HD High-temperature stainless steels Safurex Sandvik 2RE69 Sanicro 28 Sanmac stainless steels Titanium and zirconium Tubular products Stock program Approvals and standards Technical services Duplex stainless steel Duplex stainless steel offers excellent resistant to corrosion and very high mechanical strength. The high corrosion resistance of duplex stainless steel ensures significantly more uptime than carbon steels and conventional stainless steels, while the mechanical strength allows for lighter constructions, more compact system design and less welding. An alternative to nickel alloys Using its metallurgical expertise, Sandvik continues to achieve breakthroughs in the area of duplex stainless steel, adding more specialized, higher performance products to the program. Sandvik SAF 2707 HD hyper-duplex stainless steel can, for example, serve as a very competetive alternative to expensive nickel alloys and high-alloy austenitic stainless steels in the most demanding applications, such as hot tropical seawater. Sandvik's duplex stainless steel portfolio Sandvik offers seven tubular grades of duplex steel contributing to product advantages in a wide range of applications. Sandvik SAF 2707 HD hyper-duplex stainless steel Sandvik SAF 2707 HD is a hyper-duplex stainless steel with a PRE value of min. 48*. The grade has very high resistance to chloride corrosion, combined with very high mechanical strength. Sandvik SAF 2707 HD is particularly suited for use in aggressive acidic, chloride-containing environments. Read more about Sandvik SAF 2707 HD hyper-duplex stainless steel Sandvik SAF 3207 HD hyper-duplex stainless steel Sandvik SAF 3207 HD is a hyper-duplex stainless steel with a PRE value of min. 50* for service in highly corrosive conditions where also very high mechanical strength is required. This makes the grade ideal for use in deep-water umbilicals and a range of other oil and gas applications. Read more about Sandvik SAF 3207 HD hyper-duplex stainless steel Sandvik SAF 2507 super-duplex stainless steel Sandvik SAF 2507 is a super-duplex stainless steel with a PRE value of min. 42*. The grade has high corrosion resistance in chloride containing media, including seawater. Sandvik SAF 2507 is well suited for use in, for example, organic acids. Read more about Sandvik SAF 2507 super-duplex stainless steel Sandvik SAF 2205 duplex stainless steel Sandvik SAF 2205 is a duplex stainless steel with PRE value of min. 35*. As a medium-alloy duplex stainless steel it has superior corrosion resistance in most media compared to the standard austenitic stainless steel ASTM 316L and twice the mechanical strength. Datasheet for Sandvik SAF 2205 duplex stainless steel Sanmac 2205 duplex stainless steel with improved machinability Sanmac 2205 is a machinability-improved version of Sandvik SAF 2205. The grade offers excellent and consistent machining properties for increased cutting speeds, reduced tool wear and set-up times. Datasheet for Sanmac 2205 duplex stainless steel Sandvik SAF 2304 lean duplex stainless steel Sandvik SAF 2304 is a lean duplex stainless steel that generally offers a similar corrosion resistance as ASTM 316L, but has advantages in oxidizing media such as nitric acid solutions due to its low molybdenum content. Datasheet for Sandvik SAF 2304 lean duplex stainless steel Sandvik 3RE60 duplex stainless steel Sandvik 3RE60 was the first modern duplex stainless steel with nitrogen added for improved welding properties.The material is used frequently in, for example, refineries with stress corrosion cracking (SCC) problems. Datasheet for Sandvik 3RE60 duplex stainless steel * PRE stands for pitting resistance equivalent and is defined as, in weight-%: % Cr + 3.3 x % Mo + 16 x % N The PRE values mentioned above are valid for tube and pipe. Contact us Call us Email us Share Share this page via email Downloads Sandvik duplex stainless steels Select language: English(2.2 MB) Spring wire in duplex stainless steel Sandvik Springflex is a specially developed grade of duplex stainless steel spring wire providing enhanced spring performance. Read more about Sandvik Springflex spring wire Welding products Sandvik offers a wide range of welding products for duplex stainless steels. Go to welding products Send feedback about this page Home > Products > Tube, pipe, fittings and flanges > High-performance materials > Duplex stainless steels About this site Extranet Sitemap Cookies Trademarks Follow us on Facebook Follow us on Twitter Follow us on YouTube Subscribe via RSS Copyright © Sandvik AB; (publ) SE-811 81 Sandviken, Sweden Tel +46 (0)26 260000