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Fact File Duplex
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Duplex Steel Fact File
Metallurgy
Right material choice not about money
The desalination industry uses a lot of duplex and super duplex, materials whose benefits extend beyond a long lifespan. Significant environmental advantages should be a driving force behind selecting these materials, says Outokumpu's Mr Loucif....
Some pitfalls in welding duplex stainless steels
In this technical paper, Damian Kotecki looks at regularly occuring pitfalls in welding duplex stainless steels from the standpoint of metallurgical experience. Examples cited at inappropriate base metal specifications......
Characterization of lean duplex
The structural and mechanical properties of two low nickel duplex grades are analyzed to assess structural stability....
Classification of duplex steel grades
Classification and composition of the various grades of duplex stainless steels....
Corrosion prevention and protection
Giel Notten discusses materials selection using duplex stainless steels, in particular to replace common austenitic grades or high-nickel alloys and titanium....
Duplexes for high temperature, chloride solutions
Fine Tubes’ Dr Saithala discusses the corrosion resistance of duplexes in chloride solutions at elevated temperatures....
Improving your efficiency
The authors ( E. Chauveau, M. Mantel, B. Drab & S. Chedal) discuss how duplexes can replace standard stainless steel grades in a range of applications, especially when both corrosion and mechanical resistance are critical....
Influence of phase transformations
Sandvik’s Jan-Olof Nilsson and Pasi Kangas discuss how intermetallic precipitates were introduced into two superduplex grades. Their mechanical and corrosion properties were then tested....
Inter-metallic observations using a backscattering technique on 25Cr super duplex stainless steel alloy
Engineers at the University of Aberdeen investigated the susceptibility of super duplex to sigma and chi phase precipitation after heat treatment and water quenching....
Outokumpu launches Duralite
During the 2010 Tube & Wire show, Stainless Steel World caught up with Mr Asko Kahonen. We asked him about the benefits Outokumpu's Duralite system should bring for end users....
The use of duplex stainless steel grades in tubular products
This paper by by Mikael Paijkull et al. compares the duplex family to traditional austenitic grades. Its main focus is to show duplex’s weight-saving possibilities in not only HP tubing......
Thermal and mechanical treatments effects on phase transformation in duplex stainless steels
This paper concerns the phase transformation induced by heat treatment and cold rolling in four duplex stainless steels. ...
See the Library for a complete collection of articles.
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