EN 1090-1 : 2009+A1 : Execution of steel structures and aluminium structures - Part 1: Requirements for conformity assessment of structural components.

This standard specifies the requirements for assessing the conformity of the performance, manufacturing and, where necessary, structural design characteristics of structural steel or aluminium components and kits placed on the market as construction products. It also covers steel components intended for composite steel–concrete structures, whether used directly, incorporated into construction works or supplied as kits, and whether mass-produced or not. It applies to hot-rolled, cold-formed or otherwise manufactured products, including sections, plates, sheets, strips, bars, castings and forgings, whether or not protected against corrosion. It covers sections and plates as defined in EN 1993-1-3 and EN 1999-1-4, but excludes suspended ceiling components and railway rails and sleepers. Specific specifications, such as EN 13084-7, shall prevail in the event of any inconsistency.