FD ISO/TR 22824

FD ISO/TR 22824

December 2024
Published document Current

Welding - Best practices for specification and measurement of ferrite in stainless steel weld metal

This document describes best practices, based on the experience of experts, for setting appropriate requirements, in specifications and other standards and contract documents, on ferrite content of nominally austenitic or duplex ferritic-austenitic stainless steel weld metals. It also describes a best practice on measurement and measurement reproducibility, and deals with outliers in measurement. It considers ferrite in the weld heat-affected zone of duplex stainless steel. It does not consider specification or measurement of ferrite in ferritic stainless steels nor in martensitic stainless steels.

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Main informations

Collections

National standards and national normative documents

Publication date

December 2024

Number of pages

42 p.

Reference

FD ISO/TR 22824

ICS Codes

25.160.10   Welding processes

Classification index

A81-058

Print number

1

International kinship

ISO/TR 22824:2024
Sumary
Welding - Best practices for specification and measurement of ferrite in stainless steel weld metal

This document describes best practices, based on the experience of experts, for setting appropriate requirements, in specifications and other standards and contract documents, on ferrite content of nominally austenitic or duplex ferritic-austenitic stainless steel weld metals. It also describes a best practice on measurement and measurement reproducibility, and deals with outliers in measurement. It considers ferrite in the weld heat-affected zone of duplex stainless steel. It does not consider specification or measurement of ferrite in ferritic stainless steels nor in martensitic stainless steels.

Table of contents
  • 1 Domaine d'application
  • 2 Références normatives
  • 3 Termes et définitions
  • 4 Phénomènes métallurgiques de ferrite dans le métal fondu des aciers inoxydables
  • 5 Effets de variations de la ferrite sur le comportement en service du métal fondu des aciers inoxydables
  • 6 Mesurage de la ferrite dans le métal fondu en acier inoxydable
  • 7 Spécification de la ferrite dans le métal fondu des aciers inoxydables
  • 8 Valeurs aberrantes dans le mesurage de la ferrite
  • 9 Conclusions
  • Bibliographie
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