1 Scope

This document specifies a uniform system for grouping materials for welding purposes. This document can also be applied for other purposes, such as heat treatment, forming and non-destructive testing.

This document is applicable to grouping systems for the following standardized materials:

• steels;

• aluminium and its alloys;

• copper and its alloys;

• nickel and its alloys;

• titanium and its alloys;

• zirconium and its alloys;

• cast irons;

• cobalt alloys.