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 stainless steel in tunnel construction

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NSB AS, the Norwegian state-owned railroad company, started building a high-speed railway, creating a triangle from Oslo to southern Norway and then up to Bergen, navigating the scenic attractions, all of which required a great deal of innovative thinking as well as experienced partners.

CENTRAVIS pipes prequalified by TAKREER

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CENTRAVIS has been prequalified by Abu Dhabi Oil Refining Company (TAKREER) as an approved supplier of seamless stainless, alloyed and duplex steel tubes and pipes.

Singapore to build fifth desalination plant

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Singapore has recently decided to build a fifth desalination plant on the Jurong Island in order to battle the negative effects of climate changes.

AMRC Castings investment help cut costs

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A new investment that significantly increases AMRC Castings’ ability to produce large scale castings with a superior surface finish could help to radically reduce the cost to the UK of storing nuclear waste.

Nuclear AMRC works with Sellafield Ltd

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The Nuclear Advanced Manufacturing Research Centre (Nuclear AMRC) is working with Sellafield Ltd to slash the cost of making future designs of waste container boxes, potentially saving hundreds of millions of pounds in decommissioning costs.

Bohler Uddeholm Specialty Metals

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The BÖHLER portfolio of Corrosion Resistant Alloy (CRA) products in bar, billet, sheet, plate and forgings for the Oil & Gas, Chemical Processing (CPI) & Energy industries was recently partnered with the seamless tube & pipe products in stainless, duplex, super duplex & exotic grades, previously branded Schoeller Bleckmann UK.

Sandvik supplies high-alloy duplex bolts for Vasa

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Sandvik has recently exchanged half of the bolts installed in the historic Vasa ship during the 1960s with specially designed, high-alloy bolts.

United Performance adds 12� slitter

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United Performance Metals, suppliers of stainless steel, duplex stainless steel, nickel, cobalt, aluminium and titanium has recently installed a 12� wide slitter capable of processing coils ranging in thickness from .

Acerinox continues cooperation with SMS group

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Acerinox Europe placed an order with SMS group early in 2016, for the installation of a 20-high cold rolling mill for high-quality stainless steel grades.

Lincoln Electric launches new wired remotes

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Lincoln Electric has recently introduced two new wired remote control units and new welders with factory-installed wireless remote systems.

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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.

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