NEN - NPR-CEN-ISO/TR 20172
Welding - Grouping systems for materials - European materials
|Publication Date:||1 July 2021|
|ICS Code (Welding consumables):||25.160.20|
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:
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.