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New challenges for the use of duplex stainless steels at lowtemperatures

Published online by Cambridge University Press:  10 June 2013

F. Busschaert ,
T. Cassagne ,
A. Pedersen  and
Stale Johnsen
F. Busschaert
Affiliation:
Total S.A., Exploration & Production, Technology Division, Pau, France. e-mail: [email protected]
T. Cassagne
Affiliation:
Total S.A., Exploration & Production, Technology Division, Pau, France. e-mail: [email protected]
A. Pedersen
Affiliation:
Total S.A., Exploration & Production, Stavanger, Norway
Stale Johnsen
Affiliation:
Total S.A., Exploration & Production, Stavanger, Norway
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Abstract

Duplex stainless steels are often used today in the oil and gas industry because of theirhigh strength and good corrosion resistance. New developments in arctic conditions and athigh pressure require the qualification of these materials at very low temperatures. Thispaper will present the results of an extensive test program dedicated to assessing thelow-temperature behavior of various heavy-wall duplex stainless steel forgings, hotisostatically-pressed (HIP) connectors and hot extruded pipes at temperatures down to –60°C. Several welding processes were also evaluated. The implications for thedesign of duplex stainless steel production facilities will be discussed.

Keywords

Duplex stainless steelstoughnessgas tungsten arc weldinglow temperature
Type
Research Article
Information
Metallurgical Research & Technology , Volume 110 , Issue 3 , 2013 , pp. 185 - 197
Copyright
© EDP Sciences 2013

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References

DNV RP F112: Recommended practice for the design of duplex stainless steel subsea equipment exposed to cathodic protection, 2008
D. Bruch, D. Henes, P. Leibenguth, Ch. Holzapfel, Duplex 2007, Grado, Italy, 2007
B. Bonnefois, J. Charles, F. Dupoiron, P. Soulignac, Duplex Stainless Steels 91, Beaune, France, Vol. 1, 1991, p. 347
J. Charles, Duplex Stainless Steels 91, Beaune, France, Vol. 1, 1991, p. 3
R. Gunn, Duplex stainless steels, Vol. 38, 1997, p. 121