ISO/ TR 15608:2013 provides a uniform system for the grouping of materials for welding purposes. It can also apply to other purposes, such as heat treatment, forming and non-destructive testing.
ISO/ TR 15608:2013 covers 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.