ISO/TR 20172:2009 PDF

ISO/TR 20172:2009 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. ISO/TR 20172:2009 covers grouping systems for the following standardized materials: – steel; – aluminium and its alloys; – copper and its alloys; – cast irons.