# ISO/TR 20172:2006 — Withdrawn and superseded ISO standards

For ISO/TR 20172:2006, item title is Welding — Grouping systems for materials — European materials; status code is 9599; successor is ISO/TR 20172:2009; withdrawn / published date is 2006-01-27, recorded from its source on 2026-08-05.

- **Identifier:** ISO/TR 20172:2006 _(verified: appears in the quote below)_
- **Item title:** Welding — Grouping systems for materials — European materials _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO/TR 20172:2009
- **Withdrawn / published date:** 2006-01-27 _(verified: appears in the quote below)_

## What the source says

> 39261,TR,,ISO/TR 20172:2006,Welding — Grouping systems for materials — European materials,Soudage — Systèmes de groupement des matériaux — Matériaux européens,2006-01-27,1,['25.160.20'],ISO/TC 44/SC 10,9599,,[50640],['en'],29,"<p>ISO/TR 20172:2006 provides a European grouping system for materials for welding purposes, classified in accordance with the grouping system of ISO/TR 15608.</p><p>It may also apply for other purposes as heat treatment, forming, non destructive testing. Types of steels in accordance with the grouping system of ISO/TR 15608:2005, Table 1.</p><p>This Technical Report covers grouping systems for the following standardized materials:</p><ul><li>steel;</li><li>aluminium a

## 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Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).