Characteristics of the Structure of Welded Joints in Sanicro 25 Steel

Przemysław Jamrozik; Maria Sozańska

doi:10.4028/www.scientific.net/SSP.212.71

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HomeSolid State PhenomenaSolid State Phenomena Vol. 212Characteristics of the Structure of Welded Joints...

Characteristics of the Structure of Welded Joints in Sanicro 25 Steel

Abstract:

Sanicro 25 stainless steel (X7NiCrWCuCoNbNB25-23-3-3-2) is a preferred material for structural elements of boilers with supercritical and ultracritical parameters. Welded joints are critical sites that are vulnerable to failure. Hand-welded and automatically uniform welds of Sanicro 25 are evaluated in material studies, and the structure and basic mechanical properties of welded joints are examined. The proposed welding technology for Sanicro 25 ensures proper microstructure, and has obtained quality class B certification.

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Periodical:

Solid State Phenomena (Volume 212)

Pages:

71-74

DOI:

https://doi.org/10.4028/www.scientific.net/SSP.212.71

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Online since:

December 2013

Authors:

Przemysław Jamrozik*, Maria Sozańska

Keywords:

Boilers, Hardness, Microstructure, Sanicro 25, Steel, Welding

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