# ISO 27306:2009 — Withdrawn and superseded ISO standards

For ISO 27306:2009, item title is Metallic materials — Method of constraint loss correction of CTOD fracture toughness for fracture assessment of steel components; status code is 9599; successor is ISO 27306:2016; withdrawn / published date is 2009-05-11, recorded from its source on 2026-08-05.

- **Identifier:** ISO 27306:2009 _(verified: appears in the quote below)_
- **Item title:** Metallic materials — Method of constraint loss correction of CTOD fracture toughness for fracture assessment of steel components _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO 27306:2016
- **Withdrawn / published date:** 2009-05-11 _(verified: appears in the quote below)_

## What the source says

> 44089,IS,,ISO 27306:2009,Metallic materials — Method of constraint loss correction of CTOD fracture toughness for fracture assessment of steel components,Matériaux métalliques — Méthode de correction de perte de contrainte du CTOD de la ténacité à la rupture pour l'évaluation de la rupture des composants en acier,2009-05-11,1,['77.040.10'],ISO/TC 164/SC 4,9599,,[67950],['en'],55,"<p>ISO 27306:2009 specifies a method for converting the CTOD (Crack-Tip Opening Displacement) fracture toughness obtained from laboratory specimens to an equivalent CTOD for structural components, taking constraint loss into account. This method can also apply to fracture toughness assessment using the stress intens

## Source

- https://isopublicstorageprod.blob.core.windows.net/opendata/_latest/iso_deliverables_metadata/csv/iso_deliverables_metadata.csv

Last verified: 2026-08-05. Review by: 2027-02-01.
Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).