Properties of FeCrAl Alloys and Austenitic Stainless Steel for Boiler Environments

Rami Pohja, Hannu Hänninen

Research output: Book/ReportReportProfessional

Abstract

This state-of-the-art report deals with questions relating to high temperature materials for boiler applications. Of particular interest are FeCrAl alloys and an austenitic Esshete 1250 stainless steel as well as a superaustenitic Sanicro 28 alloy. The joining methods for alloys in question are also discussed in the report. Recent studies have shown that Esshete 1250 and Sanicro 28 alloy exhibit relatively good corrosion resistance in environments containing chlorine at temperatures around 500 °C, which makes them good candidate alloys for waste-fired boiler applications. Conventional FeCrAl alloys exhibit excellent corrosion resistance at temperatures around 1000 °C, but the mechanical properties are poor at high temperatures. The oxide dispersion strengthened FeCrAl alloys exhibit improved mechanical properties, but the joining of ODS alloys by fusion welding is quite challenging. FeCrAl alloys are also a good candidate material for coatings due to their excellent corrosion resistance. However, when coating is carried out by fusion welding, the welding parameters should be carefully controlled in order to avoid cracking. Altogether, FeCrAl alloys may offer a cost-effective solution for some boiler applications
Original languageEnglish
Place of PublicationEspoo
PublisherAalto University
Number of pages97
ISBN (Print)978-952-60-3197-2
Publication statusPublished - 2010
MoE publication typeD4 Published development or research report or study

Publication series

NameAalto yliopiston teknillinen korkeakoulu, koneenrakennustekniikan laitos
PublisherAalto University School of Science and Technology
Volume2/10

Fingerprint

Austenitic stainless steel
Boilers
Corrosion resistance
Welding
Joining
Fusion reactions
Coatings
Mechanical properties
Temperature
Chlorine
Stainless steel
Oxides

Keywords

  • boiler environments
  • FeCrAl alloys
  • ODS alloys
  • high temperature materials

Cite this

Pohja, R., & Hänninen, H. (2010). Properties of FeCrAl Alloys and Austenitic Stainless Steel for Boiler Environments. Espoo: Aalto University. Aalto yliopiston teknillinen korkeakoulu: Koneenrakennustekniikan laitos, Vol.. 2/10
Pohja, Rami ; Hänninen, Hannu. / Properties of FeCrAl Alloys and Austenitic Stainless Steel for Boiler Environments. Espoo : Aalto University, 2010. 97 p. (Aalto yliopiston teknillinen korkeakoulu: Koneenrakennustekniikan laitos, Vol. 2/10).
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Pohja, R & Hänninen, H 2010, Properties of FeCrAl Alloys and Austenitic Stainless Steel for Boiler Environments. Aalto yliopiston teknillinen korkeakoulu: Koneenrakennustekniikan laitos, vol. 2/10, Aalto University, Espoo.

Properties of FeCrAl Alloys and Austenitic Stainless Steel for Boiler Environments. / Pohja, Rami; Hänninen, Hannu.

Espoo : Aalto University, 2010. 97 p. (Aalto yliopiston teknillinen korkeakoulu: Koneenrakennustekniikan laitos, Vol. 2/10).

Research output: Book/ReportReportProfessional

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Pohja R, Hänninen H. Properties of FeCrAl Alloys and Austenitic Stainless Steel for Boiler Environments. Espoo: Aalto University, 2010. 97 p. (Aalto yliopiston teknillinen korkeakoulu: Koneenrakennustekniikan laitos, Vol. 2/10).