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UNS S31035/1.4990-a newly developed high strength heat resistant austenitic stainless steel for advanced high efficient coal fired power plants
Sandvik Mat Technology, Sweden.
Linköping University, Department of Management and Engineering, Engineering Materials. Linköping University, Faculty of Science & Engineering. Sandvik Mat Technology, Sweden.
Sandvik Mat Technology, Sweden.
Sandvik Mat Technology, Sweden.
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2016 (English)In: ADVANCES IN MATERIALS TECHNOLOGY FOR FOSSIL POWER PLANTS: PROCEEDINGS FROM THE EIGHTH INTERNATIONAL CONFERENCE, 2016, ASM INTERNATIONAL , 2016, 310-317 p.Conference paper, Published paper (Refereed)
Abstract [en]

Energy requirement and environmental concerns have promoted a development in higher efficiency coal fired power technologies. Advanced ultra-super critical power plant with an efficiency of higher than 50% is the target in the near future. The materials to be used due to the tougher environments become therefore critical issues. This paper provides a review on a newly developed advanced high strength heat resistant austenitic stainless steel, Sandvik Sanicro 25, for this purpose. The material shows good resistance to steam oxidation and flue gas corrosion, and has higher creep rupture strength than any other austenitic stainless steels available today, and has recently obtained two AMSE code cases. This makes it an interesting option in higher pressures/temperature applications. In this paper, the material development, structure stability, creep strength, steam oxidation and hot corrosion behaviors, fabricability and weldability of this alloy have been discussed. The conclusion is that the Sanicro 25 is a potential candidate for superheaters and reheaters in higher-efficiency coal fired boilers i.e. for applications seeing up to 700 degrees C material temperature.

Place, publisher, year, edition, pages
ASM INTERNATIONAL , 2016. 310-317 p.
Keyword [en]
Sanicro 25; Advanced ultra-super critical power plant; Heat resistant stainless steels; Superheater/reheater; Creep
National Category
Corrosion Engineering
Identifiers
URN: urn:nbn:se:liu:diva-139684ISI: 000405047900029ISBN: 978-1-62708-131-3 OAI: oai:DiVA.org:liu-139684DiVA: diva2:1130425
Conference
8th International Conference on Advances in Materials Technology for Fossil Power Plants
Available from: 2017-08-09 Created: 2017-08-09 Last updated: 2017-08-09

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CiteExportLink to record
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Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • oxford
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf