ISO/TR 20172:2021

Current Revision
Welding - Grouping systems for materials - European materials

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ISO/TR 20172:2021

Welding - Grouping systems for materials - European materials

PUBLISH DATE 2021
ISO/TR 20172:2021

This document establishes a *European grouping system* for materials for welding purposes, classified in accordance with the grouping system of ISO/TR 15608.

It is also applicable for other purposes such as heat treatment, forming and non-destructive testing.

This document covers grouping systems for the following standardized materials:

  • a) steel;
  • b) aluminium and its alloys;
  • c) copper and its alloys;
  • d) cast irons;
  • e) nickel and nickel alloys.

For materials that are not assigned to a group in this document, the criteria of ISO/TR 15608 apply.

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