This Technical Report provides an American grouping system for materials for welding purposes, classified in accordance with the grouping system of ISO/TR 15608:2005.
CEN ISO/TR 20173:2009 history
2018CEN ISO/TR 20173:2018 Welding - Grouping systems for materials - American materials
2009CEN ISO/TR 20173:2009 Welding - Grouping systems for materials - American materials
2005CEN ISO/TR 20173:2005 Welding Grouping systems for materials American materials ISO/TR 20173: 2005