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Welding Duplex Stainless Steels — A Review Of Current Recommendations

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Abstract

A steel will not become widely accepted and used unless it can be successfully welded without too many limitations. Contemporary duplex stainless steel grades fulfil these requirements with some grade dependent differences. The duplex stainless steel family has, during the last decade, been extended with new lean grades and recently also highly-alloyed hyperduplex grades. Most welding recommendations are very similar to those of the 1990’s. However, the introduction of new grades and the increased use of newer welding methods has somewhat changed the perception of what is possible. This paper discusses the state-of-the-art and trends in welding of duplex stainless steels. It is based on input from the worldwide welding community, including users and producers of steel and welding consumables as well as literature. In most cases, there is consensus on recommendations but variations reflecting differences in practices exist in particular for newer steel grades where limits in e.g. allowable energy inputs are less well documented.

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Additional literature

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  • Proceedings Conference Duplex Stainless Steels’86, The Hague, Netherlands (Oct. 1986).

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  • Proceedings International Conference Duplex 2000, Venice, Italy (Oct. 2000).

  • Proceedings International Conference Duplex 2007, Grado, Italy (June 2007).

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  1. ESAB AB, Göteborg, Sweden

    Leif

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Leif Welding Duplex Stainless Steels — A Review Of Current Recommendations. Weld World 56, 65–76 (2012). https://doi.org/10.1007/BF03321351

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