Tag: duplex

Duplex Stainless Steels

Duplex stainless steels have a ferritic-austenitic microstructure, in roughly equal proportions 50% ferrite and 50% austenite. Duplex combines many of the attractive properties of ferritic and austenitic stainless steels into one.

Different variants for Duplex

Duplex stainless steels are designed to provide better corrosion resistance, in particular to stress corrosion and pitting corrosion. The microstructure leads to higher strength than standard austenitic stainless steels such as Type 304 or 316. Duplex stainless steels have become more and more popular in recent years. There are several variants available, such as Duplex 2205, Superduplex 2507 or lean duplex with lower nickel content.

Sandvik products to star at Nitrogen + Syngas 2014

Sandvik’s extensive expertise and product portfolio will feature at Nitrogen + Syngas 2014 with special high-alloy, seamless stainless steel tubing and materials developed for aggressive applications in fertilizer processing plant.

SXP wins for SARB Project in UAE

Schulz Xtruded Products (SXP) has received an order from HYUNDAI Engineering & Construction Co., Ltd. for the supply of 4,500m of 6” seamless pipe in material grade alloy 625 for the ADMA-OPCO Satah al-Razboot (SARB) Offshore Oilfield in Abu Dhabi, United Arab Emirates.

30 years for DK Jones Ltd

DK Jones Ltd celebrated three decades as an international supplier of piping and associated products. The company initially began in 1983 as a UK sales agent of several European manufacturers of fittings and flanges.

Sandvik strengthens its focus on oil & gas business

newsitemSandvik Materials Technology has established a new Business Unit Oil & Gas aimed at increasing business growth in the energy sector.

Top platform at Separation Technology Symposium

newsitemBy David Sear & Mark Casey Held in Cologne, Germany, on June 19 and 20, 2013, the Fourth International Separation Technology Symposium was very well received by attendees, including suppliers, equipment builders and users. The event, organised by Schmidt + Clemens, was described as a top platform by many of the managers and engineers that Stainless Steel World spoke to. They said the show was a great opportunity to see the latest developments in separation techniques, to network with peers, and also to see how new insights and materials could be of benefit to special applications. To bring you a flavour of the event, the SSW TV Team interviewed two of the organisers from Schmidt + Clemens, as well as some of the speakers and attendees. Separation Technology Symposium - review by Schmidt + Clemens' Christian Lenz Christian Lenz (Sales Director SP at Schmidt + Clemens) discusses the 4th International Separation Technology Symposium.

SMS Siemag mill stand, roller-type quench for Acro

newsitemSlovenian steelmaker Acroni has commissioned a new 2.6-m X-Roll heavy-plate mill stand from SMS Innse, Italy, and a new roller-type quench supplied by Drever International, Belgium, two subsidiaries of SMS Siemag as part of modernising its heavy-plate mill. Acroni, a company of the Slovenian Steel Group (SIJ), is a highly specialised niche supplier with a focus on plates and strips of stainless steel grades, tool steels, abrasion-resistant steels and HSLA grades.

SMS Mevac to supply VOD facility

SMS Mevac, Germany, will be supplying an X-eed Duplex VOD facility to Fujian Fuxin Special Steel (part of Formosa Plastics Corporation), based in Zhangzhou, China to be used in the production of austenitic and ferritic stainless steels.

SpecialSteelsStock, new name of Divisione Trading

newsitem In June 2013, on their 10th anniversary, Divisione Trading changed their name to “SpecialSteelStock”, which a spokesperson for the company says “better identifies who they are and what they offer, and also reflects on the huge quantity of special materials held in stock.” The company has more than 2500 tons of special steels in stock, such as Duplex 31803, Super Duplex 32750 and 32760, Austenitic XM-19 and Super Austenitic 31254 and 904L.

Outokumpu signs agreement with Sinopec

newsitem Outokumpu has signed a strategic partnership agreement with Sinopec Group on material development and deliveries of stainless steel.

Duplex workshop topic suggestions welcome!

The organizers of the highly anticipated Duplex Seminar & Summit 2014 event invite industry experts to suggest topics for the interactive workshops which will be held. What do you consider to be the most pressing issues for the global duplex community…perhaps recurring problems in the manufacturing, specification or application of duplex? Send your suggestions by November 1, 2013 via email to Ms.


The advantages of Duplex Stainless Steels

Corrosion Resistance: Duplex stainless steel has excellent corrosion resistance due to its high chromium and molybdenum content. It is particularly resistant to stress corrosion cracking and pitting, which makes it suitable for use in harsh environments. There are several variants available, such as Duplex 2205, Superduplex 2507 or lean duplex with lower nickel content.

Strength: Duplex stainless steel is much stronger than conventional austenitic stainless steels, which allows for thinner and lighter constructions without sacrificing durability.

Toughness: Duplex stainless steel has a high toughness, which means it is resistant to brittle fracture and impact. This property makes it suitable for use in cryogenic applications.

Cost-effectiveness: Although duplex stainless steel is more expensive than conventional austenitic stainless steels, its superior properties can lead to cost savings in the long run by reducing maintenance and downtime.

Versatility: Duplex stainless steel can be used in a wide range of applications, including chemical processing, oil and gas, marine, and pulp and paper industries. It is also used in construction and architecture due to its aesthetic appeal.