EN 4258:1998 Aerospace series - Metallic materials - General organization of standardization - Links between types of EN standards and their use
EN 4500-005:2012 Aerospace series - Metallic materials - Rules for drafting and presentation of material standards - Part 005: Specific rules for steels
EN 4700-003:2010 Aerospace series - Steel and heat resisting alloys - Wrought products - Technical specification - Part 003: Tube
EN 4258:1998 Aerospace series - Metallic materials - General organization of standardization - Links between types of EN standards and their use
EN 4500-005:2012 Aerospace series - Metallic materials - Rules for drafting and presentation of material standards - Part 005: Specific rules for steels
EN 4700-003:2010 Aerospace series - Steel and heat resisting alloys - Wrought products - Technical specification - Part 003: Tube